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Testing Ignition Module on 88 XJ
I've got a hot stalling problem on my 88 XJ.
The Jeep runs perfectly most of the time, however after several "hot soaks" (eg, my wife out shopping), or driven for several miles on the freeway with the A/C on the engine just quits while driving down the road. I first suspected the notorious Crank Position Sensor, which I replaced last week. No joy. Had to have the Jeep towed home last weekend. (Wife not happy). I've gone over the ALL the connections in the engine compartment, cleaned, inspected and even tightened the female connections on those that looked loose. All the grounds and battery cables have been cleaned. So now I suspect that the ignition control module is the culprit. Before I spend $150.00 on a replacement I'd like to know if there is a way to test the existing module? Any advice you could give me would be appreciated. Dave in Columbus |
Re: Testing Ignition Module on 88 XJ
There is no way to test it short of plugging in a replacement as far as
I know. I had symptoms like yours and also changed the CPS with no joy. In my case it was a rotted wire mesh cable from the back of the engine head to the firewall. Changed that and no more troubles. Mike 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 88 Cherokee 235 BFG AT's noone@yahoo.com wrote: > > I've got a hot stalling problem on my 88 XJ. > > The Jeep runs perfectly most of the time, however after several "hot soaks" > (eg, my wife out shopping), or driven for several miles on the freeway with > the A/C on the engine just quits while driving down the road. > > I first suspected the notorious Crank Position Sensor, which I replaced > last week. No joy. Had to have the Jeep towed home last weekend. (Wife > not happy). > > I've gone over the ALL the connections in the engine compartment, cleaned, > inspected and even tightened the female connections on those that looked > loose. All the grounds and battery cables have been cleaned. > > So now I suspect that the ignition control module is the culprit. Before I > spend $150.00 on a replacement I'd like to know if there is a way to test > the existing module? > > Any advice you could give me would be appreciated. > > Dave in Columbus |
Re: Testing Ignition Module on 88 XJ
There is no way to test it short of plugging in a replacement as far as
I know. I had symptoms like yours and also changed the CPS with no joy. In my case it was a rotted wire mesh cable from the back of the engine head to the firewall. Changed that and no more troubles. Mike 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 88 Cherokee 235 BFG AT's noone@yahoo.com wrote: > > I've got a hot stalling problem on my 88 XJ. > > The Jeep runs perfectly most of the time, however after several "hot soaks" > (eg, my wife out shopping), or driven for several miles on the freeway with > the A/C on the engine just quits while driving down the road. > > I first suspected the notorious Crank Position Sensor, which I replaced > last week. No joy. Had to have the Jeep towed home last weekend. (Wife > not happy). > > I've gone over the ALL the connections in the engine compartment, cleaned, > inspected and even tightened the female connections on those that looked > loose. All the grounds and battery cables have been cleaned. > > So now I suspect that the ignition control module is the culprit. Before I > spend $150.00 on a replacement I'd like to know if there is a way to test > the existing module? > > Any advice you could give me would be appreciated. > > Dave in Columbus |
Re: Testing Ignition Module on 88 XJ
Make sure your fuel pump is still working, hot, most have been
replaced by your year. My test is just to listen for it running, turn the ignition on, and before cranking it should run for about five seconds before it automatically shuts off. Or test the fuel rail for about forty pounds. God Bless America, ßill O|||||||O mailto:-------------------- http://www.----------.com/ noone@yahoo.com wrote: > > I've got a hot stalling problem on my 88 XJ. > > The Jeep runs perfectly most of the time, however after several "hot soaks" > (eg, my wife out shopping), or driven for several miles on the freeway with > the A/C on the engine just quits while driving down the road. > > I first suspected the notorious Crank Position Sensor, which I replaced > last week. No joy. Had to have the Jeep towed home last weekend. (Wife > not happy). > > I've gone over the ALL the connections in the engine compartment, cleaned, > inspected and even tightened the female connections on those that looked > loose. All the grounds and battery cables have been cleaned. > > So now I suspect that the ignition control module is the culprit. Before I > spend $150.00 on a replacement I'd like to know if there is a way to test > the existing module? > > Any advice you could give me would be appreciated. > > Dave in Columbus |
Re: Testing Ignition Module on 88 XJ
Make sure your fuel pump is still working, hot, most have been
replaced by your year. My test is just to listen for it running, turn the ignition on, and before cranking it should run for about five seconds before it automatically shuts off. Or test the fuel rail for about forty pounds. God Bless America, ßill O|||||||O mailto:-------------------- http://www.----------.com/ noone@yahoo.com wrote: > > I've got a hot stalling problem on my 88 XJ. > > The Jeep runs perfectly most of the time, however after several "hot soaks" > (eg, my wife out shopping), or driven for several miles on the freeway with > the A/C on the engine just quits while driving down the road. > > I first suspected the notorious Crank Position Sensor, which I replaced > last week. No joy. Had to have the Jeep towed home last weekend. (Wife > not happy). > > I've gone over the ALL the connections in the engine compartment, cleaned, > inspected and even tightened the female connections on those that looked > loose. All the grounds and battery cables have been cleaned. > > So now I suspect that the ignition control module is the culprit. Before I > spend $150.00 on a replacement I'd like to know if there is a way to test > the existing module? > > Any advice you could give me would be appreciated. > > Dave in Columbus |
Re: Testing Ignition Module on 88 XJ
L.W.(ßill) ------ III <----------@cox.net> wrote in message news:<3F706836.52DB8946@cox.net>...
> Make sure your fuel pump is still working, hot, most have been > replaced by your year. My test is just to listen for it running, turn > the ignition on, and before cranking it should run for about five > seconds before it automatically shuts off. Or test the fuel rail for > about forty pounds. > God Bless America, ßill O|||||||O > mailto:-------------------- http://www.----------.com/ > > noone@yahoo.com wrote: > > > > I've got a hot stalling problem on my 88 XJ. > > > > The Jeep runs perfectly most of the time, however after several "hot soaks" > > (eg, my wife out shopping), or driven for several miles on the freeway with > > the A/C on the engine just quits while driving down the road. > > > > I first suspected the notorious Crank Position Sensor, which I replaced > > last week. No joy. Had to have the Jeep towed home last weekend. (Wife > > not happy). > > > > I've gone over the ALL the connections in the engine compartment, cleaned, > > inspected and even tightened the female connections on those that looked > > loose. All the grounds and battery cables have been cleaned. > > > > So now I suspect that the ignition control module is the culprit. Before I > > spend $150.00 on a replacement I'd like to know if there is a way to test > > the existing module? > > > > Any advice you could give me would be appreciated. > > > > Dave in Columbus I just had that happen to me I found a parts store that could test mine I have a 85 XJ 2.8 and a new one was $39 Its been fine for two months now.. 85XJ 86XJ 3'lift 85 4x4 chev trk |
Re: Testing Ignition Module on 88 XJ
L.W.(ßill) ------ III <----------@cox.net> wrote in message news:<3F706836.52DB8946@cox.net>...
> Make sure your fuel pump is still working, hot, most have been > replaced by your year. My test is just to listen for it running, turn > the ignition on, and before cranking it should run for about five > seconds before it automatically shuts off. Or test the fuel rail for > about forty pounds. > God Bless America, ßill O|||||||O > mailto:-------------------- http://www.----------.com/ > > noone@yahoo.com wrote: > > > > I've got a hot stalling problem on my 88 XJ. > > > > The Jeep runs perfectly most of the time, however after several "hot soaks" > > (eg, my wife out shopping), or driven for several miles on the freeway with > > the A/C on the engine just quits while driving down the road. > > > > I first suspected the notorious Crank Position Sensor, which I replaced > > last week. No joy. Had to have the Jeep towed home last weekend. (Wife > > not happy). > > > > I've gone over the ALL the connections in the engine compartment, cleaned, > > inspected and even tightened the female connections on those that looked > > loose. All the grounds and battery cables have been cleaned. > > > > So now I suspect that the ignition control module is the culprit. Before I > > spend $150.00 on a replacement I'd like to know if there is a way to test > > the existing module? > > > > Any advice you could give me would be appreciated. > > > > Dave in Columbus I just had that happen to me I found a parts store that could test mine I have a 85 XJ 2.8 and a new one was $39 Its been fine for two months now.. 85XJ 86XJ 3'lift 85 4x4 chev trk |
Re: Testing Ignition Module on 88 XJ
Rich wrote:
> > L.W.(ßill) ------ III <----------@cox.net> wrote in message news:<3F706836.52DB8946@cox.net>... > > Make sure your fuel pump is still working, hot, most have been > > replaced by your year. My test is just to listen for it running, turn > > the ignition on, and before cranking it should run for about five > > seconds before it automatically shuts off. Or test the fuel rail for > > about forty pounds. > > God Bless America, ßill O|||||||O > > mailto:-------------------- http://www.----------.com/ > > > > noone@yahoo.com wrote: > > > > > > I've got a hot stalling problem on my 88 XJ. > > > > > > The Jeep runs perfectly most of the time, however after several "hot soaks" > > > (eg, my wife out shopping), or driven for several miles on the freeway with > > > the A/C on the engine just quits while driving down the road. > > > > > > I first suspected the notorious Crank Position Sensor, which I replaced > > > last week. No joy. Had to have the Jeep towed home last weekend. (Wife > > > not happy). > > > > > > I've gone over the ALL the connections in the engine compartment, cleaned, > > > inspected and even tightened the female connections on those that looked > > > loose. All the grounds and battery cables have been cleaned. > > > > > > So now I suspect that the ignition control module is the culprit. Before I > > > spend $150.00 on a replacement I'd like to know if there is a way to test > > > the existing module? > > > > > > Any advice you could give me would be appreciated. > > > > > > Dave in Columbus > > I just had that happen to me I found a parts store that could test > mine I have a 85 XJ 2.8 and a new one was $39 Its been fine for two > months now.. > 85XJ > 86XJ 3'lift > 85 4x4 chev trk What flavor of parts store? Mike 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 88 Cherokee 235 BFG AT's |
Re: Testing Ignition Module on 88 XJ
Rich wrote:
> > L.W.(ßill) ------ III <----------@cox.net> wrote in message news:<3F706836.52DB8946@cox.net>... > > Make sure your fuel pump is still working, hot, most have been > > replaced by your year. My test is just to listen for it running, turn > > the ignition on, and before cranking it should run for about five > > seconds before it automatically shuts off. Or test the fuel rail for > > about forty pounds. > > God Bless America, ßill O|||||||O > > mailto:-------------------- http://www.----------.com/ > > > > noone@yahoo.com wrote: > > > > > > I've got a hot stalling problem on my 88 XJ. > > > > > > The Jeep runs perfectly most of the time, however after several "hot soaks" > > > (eg, my wife out shopping), or driven for several miles on the freeway with > > > the A/C on the engine just quits while driving down the road. > > > > > > I first suspected the notorious Crank Position Sensor, which I replaced > > > last week. No joy. Had to have the Jeep towed home last weekend. (Wife > > > not happy). > > > > > > I've gone over the ALL the connections in the engine compartment, cleaned, > > > inspected and even tightened the female connections on those that looked > > > loose. All the grounds and battery cables have been cleaned. > > > > > > So now I suspect that the ignition control module is the culprit. Before I > > > spend $150.00 on a replacement I'd like to know if there is a way to test > > > the existing module? > > > > > > Any advice you could give me would be appreciated. > > > > > > Dave in Columbus > > I just had that happen to me I found a parts store that could test > mine I have a 85 XJ 2.8 and a new one was $39 Its been fine for two > months now.. > 85XJ > 86XJ 3'lift > 85 4x4 chev trk What flavor of parts store? Mike 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 88 Cherokee 235 BFG AT's |
Re: Testing Ignition Module on 88 XJ
I know NAPA does the test for free from experience first hand.
-- MATT O, it is excellent to have a giant's strength; but it is tyrannous to use it like a giant. "Mike Romain" <romainm@sympatico.ca> wrote in message news:3F70CC65.39A43EB6@sympatico.ca... > Rich wrote: > > > > L.W.(ßill) ------ III <----------@cox.net> wrote in message news:<3F706836.52DB8946@cox.net>... > > > Make sure your fuel pump is still working, hot, most have been > > > replaced by your year. My test is just to listen for it running, turn > > > the ignition on, and before cranking it should run for about five > > > seconds before it automatically shuts off. Or test the fuel rail for > > > about forty pounds. > > > God Bless America, ßill O|||||||O > > > mailto:-------------------- http://www.----------.com/ > > > > > > noone@yahoo.com wrote: > > > > > > > > I've got a hot stalling problem on my 88 XJ. > > > > > > > > The Jeep runs perfectly most of the time, however after several "hot soaks" > > > > (eg, my wife out shopping), or driven for several miles on the freeway with > > > > the A/C on the engine just quits while driving down the road. > > > > > > > > I first suspected the notorious Crank Position Sensor, which I replaced > > > > last week. No joy. Had to have the Jeep towed home last weekend. (Wife > > > > not happy). > > > > > > > > I've gone over the ALL the connections in the engine compartment, cleaned, > > > > inspected and even tightened the female connections on those that looked > > > > loose. All the grounds and battery cables have been cleaned. > > > > > > > > So now I suspect that the ignition control module is the culprit. Before I > > > > spend $150.00 on a replacement I'd like to know if there is a way to test > > > > the existing module? > > > > > > > > Any advice you could give me would be appreciated. > > > > > > > > Dave in Columbus > > > > I just had that happen to me I found a parts store that could test > > mine I have a 85 XJ 2.8 and a new one was $39 Its been fine for two > > months now.. > > 85XJ > > 86XJ 3'lift > > 85 4x4 chev trk > > What flavor of parts store? > > Mike > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 > 88 Cherokee 235 BFG AT's |
Re: Testing Ignition Module on 88 XJ
I know NAPA does the test for free from experience first hand.
-- MATT O, it is excellent to have a giant's strength; but it is tyrannous to use it like a giant. "Mike Romain" <romainm@sympatico.ca> wrote in message news:3F70CC65.39A43EB6@sympatico.ca... > Rich wrote: > > > > L.W.(ßill) ------ III <----------@cox.net> wrote in message news:<3F706836.52DB8946@cox.net>... > > > Make sure your fuel pump is still working, hot, most have been > > > replaced by your year. My test is just to listen for it running, turn > > > the ignition on, and before cranking it should run for about five > > > seconds before it automatically shuts off. Or test the fuel rail for > > > about forty pounds. > > > God Bless America, ßill O|||||||O > > > mailto:-------------------- http://www.----------.com/ > > > > > > noone@yahoo.com wrote: > > > > > > > > I've got a hot stalling problem on my 88 XJ. > > > > > > > > The Jeep runs perfectly most of the time, however after several "hot soaks" > > > > (eg, my wife out shopping), or driven for several miles on the freeway with > > > > the A/C on the engine just quits while driving down the road. > > > > > > > > I first suspected the notorious Crank Position Sensor, which I replaced > > > > last week. No joy. Had to have the Jeep towed home last weekend. (Wife > > > > not happy). > > > > > > > > I've gone over the ALL the connections in the engine compartment, cleaned, > > > > inspected and even tightened the female connections on those that looked > > > > loose. All the grounds and battery cables have been cleaned. > > > > > > > > So now I suspect that the ignition control module is the culprit. Before I > > > > spend $150.00 on a replacement I'd like to know if there is a way to test > > > > the existing module? > > > > > > > > Any advice you could give me would be appreciated. > > > > > > > > Dave in Columbus > > > > I just had that happen to me I found a parts store that could test > > mine I have a 85 XJ 2.8 and a new one was $39 Its been fine for two > > months now.. > > 85XJ > > 86XJ 3'lift > > 85 4x4 chev trk > > What flavor of parts store? > > Mike > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 > 88 Cherokee 235 BFG AT's |
Re: Testing Ignition Module on 88 XJ
Cool, I am going to phone a local one and ask them, thanks.
Mike happy jeeper wrote: > > I know NAPA does the test for free from experience first hand. > > -- > MATT > > O, it is excellent to have a giant's strength; but it is tyrannous to use it > like a giant. > > "Mike Romain" <romainm@sympatico.ca> wrote in message > news:3F70CC65.39A43EB6@sympatico.ca... > > Rich wrote: > > > > > > L.W.(ßill) ------ III <----------@cox.net> wrote in message > news:<3F706836.52DB8946@cox.net>... > > > > Make sure your fuel pump is still working, hot, most have been > > > > replaced by your year. My test is just to listen for it running, turn > > > > the ignition on, and before cranking it should run for about five > > > > seconds before it automatically shuts off. Or test the fuel rail for > > > > about forty pounds. > > > > God Bless America, ßill O|||||||O > > > > mailto:-------------------- http://www.----------.com/ > > > > > > > > noone@yahoo.com wrote: > > > > > > > > > > I've got a hot stalling problem on my 88 XJ. > > > > > > > > > > The Jeep runs perfectly most of the time, however after several "hot > soaks" > > > > > (eg, my wife out shopping), or driven for several miles on the > freeway with > > > > > the A/C on the engine just quits while driving down the road. > > > > > > > > > > I first suspected the notorious Crank Position Sensor, which I > replaced > > > > > last week. No joy. Had to have the Jeep towed home last weekend. > (Wife > > > > > not happy). > > > > > > > > > > I've gone over the ALL the connections in the engine compartment, > cleaned, > > > > > inspected and even tightened the female connections on those that > looked > > > > > loose. All the grounds and battery cables have been cleaned. > > > > > > > > > > So now I suspect that the ignition control module is the culprit. > Before I > > > > > spend $150.00 on a replacement I'd like to know if there is a way to > test > > > > > the existing module? > > > > > > > > > > Any advice you could give me would be appreciated. > > > > > > > > > > Dave in Columbus > > > > > > I just had that happen to me I found a parts store that could test > > > mine I have a 85 XJ 2.8 and a new one was $39 Its been fine for two > > > months now.. > > > 85XJ > > > 86XJ 3'lift > > > 85 4x4 chev trk > > > > What flavor of parts store? > > > > Mike > > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 > > 88 Cherokee 235 BFG AT's |
Re: Testing Ignition Module on 88 XJ
Cool, I am going to phone a local one and ask them, thanks.
Mike happy jeeper wrote: > > I know NAPA does the test for free from experience first hand. > > -- > MATT > > O, it is excellent to have a giant's strength; but it is tyrannous to use it > like a giant. > > "Mike Romain" <romainm@sympatico.ca> wrote in message > news:3F70CC65.39A43EB6@sympatico.ca... > > Rich wrote: > > > > > > L.W.(ßill) ------ III <----------@cox.net> wrote in message > news:<3F706836.52DB8946@cox.net>... > > > > Make sure your fuel pump is still working, hot, most have been > > > > replaced by your year. My test is just to listen for it running, turn > > > > the ignition on, and before cranking it should run for about five > > > > seconds before it automatically shuts off. Or test the fuel rail for > > > > about forty pounds. > > > > God Bless America, ßill O|||||||O > > > > mailto:-------------------- http://www.----------.com/ > > > > > > > > noone@yahoo.com wrote: > > > > > > > > > > I've got a hot stalling problem on my 88 XJ. > > > > > > > > > > The Jeep runs perfectly most of the time, however after several "hot > soaks" > > > > > (eg, my wife out shopping), or driven for several miles on the > freeway with > > > > > the A/C on the engine just quits while driving down the road. > > > > > > > > > > I first suspected the notorious Crank Position Sensor, which I > replaced > > > > > last week. No joy. Had to have the Jeep towed home last weekend. > (Wife > > > > > not happy). > > > > > > > > > > I've gone over the ALL the connections in the engine compartment, > cleaned, > > > > > inspected and even tightened the female connections on those that > looked > > > > > loose. All the grounds and battery cables have been cleaned. > > > > > > > > > > So now I suspect that the ignition control module is the culprit. > Before I > > > > > spend $150.00 on a replacement I'd like to know if there is a way to > test > > > > > the existing module? > > > > > > > > > > Any advice you could give me would be appreciated. > > > > > > > > > > Dave in Columbus > > > > > > I just had that happen to me I found a parts store that could test > > > mine I have a 85 XJ 2.8 and a new one was $39 Its been fine for two > > > months now.. > > > 85XJ > > > 86XJ 3'lift > > > 85 4x4 chev trk > > > > What flavor of parts store? > > > > Mike > > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 > > 88 Cherokee 235 BFG AT's |
Re: Testing Ignition Module on 88 XJ
Actually, some do and some don't. It's best to call around. Our NAPA here
charges you unless the module is bad and you buy a new one from them. Chris "happy jeeper" <jeepr@onthemountain.com> wrote in message news:Nj6cb.2141$PT3.374335@news20.bellglobal.com.. . > I know NAPA does the test for free from experience first hand. > > -- > MATT > > O, it is excellent to have a giant's strength; but it is tyrannous to use it > like a giant. > > "Mike Romain" <romainm@sympatico.ca> wrote in message > news:3F70CC65.39A43EB6@sympatico.ca... > > Rich wrote: > > > > > > L.W.(ßill) ------ III <----------@cox.net> wrote in message > news:<3F706836.52DB8946@cox.net>... > > > > Make sure your fuel pump is still working, hot, most have been > > > > replaced by your year. My test is just to listen for it running, turn > > > > the ignition on, and before cranking it should run for about five > > > > seconds before it automatically shuts off. Or test the fuel rail for > > > > about forty pounds. > > > > God Bless America, ßill O|||||||O > > > > mailto:-------------------- http://www.----------.com/ > > > > > > > > noone@yahoo.com wrote: > > > > > > > > > > I've got a hot stalling problem on my 88 XJ. > > > > > > > > > > The Jeep runs perfectly most of the time, however after several "hot > soaks" > > > > > (eg, my wife out shopping), or driven for several miles on the > freeway with > > > > > the A/C on the engine just quits while driving down the road. > > > > > > > > > > I first suspected the notorious Crank Position Sensor, which I > replaced > > > > > last week. No joy. Had to have the Jeep towed home last weekend. > (Wife > > > > > not happy). > > > > > > > > > > I've gone over the ALL the connections in the engine compartment, > cleaned, > > > > > inspected and even tightened the female connections on those that > looked > > > > > loose. All the grounds and battery cables have been cleaned. > > > > > > > > > > So now I suspect that the ignition control module is the culprit. > Before I > > > > > spend $150.00 on a replacement I'd like to know if there is a way to > test > > > > > the existing module? > > > > > > > > > > Any advice you could give me would be appreciated. > > > > > > > > > > Dave in Columbus > > > > > > I just had that happen to me I found a parts store that could test > > > mine I have a 85 XJ 2.8 and a new one was $39 Its been fine for two > > > months now.. > > > 85XJ > > > 86XJ 3'lift > > > 85 4x4 chev trk > > > > What flavor of parts store? > > > > Mike > > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 > > 88 Cherokee 235 BFG AT's > > |
Re: Testing Ignition Module on 88 XJ
Actually, some do and some don't. It's best to call around. Our NAPA here
charges you unless the module is bad and you buy a new one from them. Chris "happy jeeper" <jeepr@onthemountain.com> wrote in message news:Nj6cb.2141$PT3.374335@news20.bellglobal.com.. . > I know NAPA does the test for free from experience first hand. > > -- > MATT > > O, it is excellent to have a giant's strength; but it is tyrannous to use it > like a giant. > > "Mike Romain" <romainm@sympatico.ca> wrote in message > news:3F70CC65.39A43EB6@sympatico.ca... > > Rich wrote: > > > > > > L.W.(ßill) ------ III <----------@cox.net> wrote in message > news:<3F706836.52DB8946@cox.net>... > > > > Make sure your fuel pump is still working, hot, most have been > > > > replaced by your year. My test is just to listen for it running, turn > > > > the ignition on, and before cranking it should run for about five > > > > seconds before it automatically shuts off. Or test the fuel rail for > > > > about forty pounds. > > > > God Bless America, ßill O|||||||O > > > > mailto:-------------------- http://www.----------.com/ > > > > > > > > noone@yahoo.com wrote: > > > > > > > > > > I've got a hot stalling problem on my 88 XJ. > > > > > > > > > > The Jeep runs perfectly most of the time, however after several "hot > soaks" > > > > > (eg, my wife out shopping), or driven for several miles on the > freeway with > > > > > the A/C on the engine just quits while driving down the road. > > > > > > > > > > I first suspected the notorious Crank Position Sensor, which I > replaced > > > > > last week. No joy. Had to have the Jeep towed home last weekend. > (Wife > > > > > not happy). > > > > > > > > > > I've gone over the ALL the connections in the engine compartment, > cleaned, > > > > > inspected and even tightened the female connections on those that > looked > > > > > loose. All the grounds and battery cables have been cleaned. > > > > > > > > > > So now I suspect that the ignition control module is the culprit. > Before I > > > > > spend $150.00 on a replacement I'd like to know if there is a way to > test > > > > > the existing module? > > > > > > > > > > Any advice you could give me would be appreciated. > > > > > > > > > > Dave in Columbus > > > > > > I just had that happen to me I found a parts store that could test > > > mine I have a 85 XJ 2.8 and a new one was $39 Its been fine for two > > > months now.. > > > 85XJ > > > 86XJ 3'lift > > > 85 4x4 chev trk > > > > What flavor of parts store? > > > > Mike > > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 > > 88 Cherokee 235 BFG AT's > > |
Re: Testing Ignition Module on 88 XJ
<noone@yahoo.com> wrote in message news:52m0nvseukcmr4u0trvo3ru7vhah9t72bl@4ax.com... > I've got a hot stalling problem on my 88 XJ. .... > Any advice you could give me would be appreciated. Take a blow dryer (or hot air gun) and heat the module... if you can get it to fail this way, then it is the culprit. Or, take some freeze spray or icewater and cool the module down when it fails next... if this fixes it, then you should replace it. __ Steve .. |
Re: Testing Ignition Module on 88 XJ
<noone@yahoo.com> wrote in message news:52m0nvseukcmr4u0trvo3ru7vhah9t72bl@4ax.com... > I've got a hot stalling problem on my 88 XJ. .... > Any advice you could give me would be appreciated. Take a blow dryer (or hot air gun) and heat the module... if you can get it to fail this way, then it is the culprit. Or, take some freeze spray or icewater and cool the module down when it fails next... if this fixes it, then you should replace it. __ Steve .. |
Re: Testing Ignition Module on 88 XJ
My fuel pump relay used to stop working when it was hot. In the 88 you can
just buy all new bosch relays for under the hood. Its cheap and a good idea. the fuel pump relay is over by the battery and dist. cap. KH "L.W. (ßill) ------ III" <----------@cox.net> wrote in message news:3F706836.52DB8946@cox.net... > Make sure your fuel pump is still working, hot, most have been > replaced by your year. My test is just to listen for it running, turn > the ignition on, and before cranking it should run for about five > seconds before it automatically shuts off. Or test the fuel rail for > about forty pounds. > God Bless America, ßill O|||||||O > mailto:-------------------- http://www.----------.com/ > > noone@yahoo.com wrote: > > > > I've got a hot stalling problem on my 88 XJ. > > > > The Jeep runs perfectly most of the time, however after several "hot soaks" > > (eg, my wife out shopping), or driven for several miles on the freeway with > > the A/C on the engine just quits while driving down the road. > > > > I first suspected the notorious Crank Position Sensor, which I replaced > > last week. No joy. Had to have the Jeep towed home last weekend. (Wife > > not happy). > > > > I've gone over the ALL the connections in the engine compartment, cleaned, > > inspected and even tightened the female connections on those that looked > > loose. All the grounds and battery cables have been cleaned. > > > > So now I suspect that the ignition control module is the culprit. Before I > > spend $150.00 on a replacement I'd like to know if there is a way to test > > the existing module? > > > > Any advice you could give me would be appreciated. > > > > Dave in Columbus |
Re: Testing Ignition Module on 88 XJ
My fuel pump relay used to stop working when it was hot. In the 88 you can
just buy all new bosch relays for under the hood. Its cheap and a good idea. the fuel pump relay is over by the battery and dist. cap. KH "L.W. (ßill) ------ III" <----------@cox.net> wrote in message news:3F706836.52DB8946@cox.net... > Make sure your fuel pump is still working, hot, most have been > replaced by your year. My test is just to listen for it running, turn > the ignition on, and before cranking it should run for about five > seconds before it automatically shuts off. Or test the fuel rail for > about forty pounds. > God Bless America, ßill O|||||||O > mailto:-------------------- http://www.----------.com/ > > noone@yahoo.com wrote: > > > > I've got a hot stalling problem on my 88 XJ. > > > > The Jeep runs perfectly most of the time, however after several "hot soaks" > > (eg, my wife out shopping), or driven for several miles on the freeway with > > the A/C on the engine just quits while driving down the road. > > > > I first suspected the notorious Crank Position Sensor, which I replaced > > last week. No joy. Had to have the Jeep towed home last weekend. (Wife > > not happy). > > > > I've gone over the ALL the connections in the engine compartment, cleaned, > > inspected and even tightened the female connections on those that looked > > loose. All the grounds and battery cables have been cleaned. > > > > So now I suspect that the ignition control module is the culprit. Before I > > spend $150.00 on a replacement I'd like to know if there is a way to test > > the existing module? > > > > Any advice you could give me would be appreciated. > > > > Dave in Columbus |
Re: Testing Ignition Module on 88 XJ
On Tue, 23 Sep 2003 10:35:23 -0400, noone@yahoo.com wrote:
>I've got a hot stalling problem on my 88 XJ. > >The Jeep runs perfectly most of the time, however after several "hot soaks" >(eg, my wife out shopping), or driven for several miles on the freeway with >the A/C on the engine just quits while driving down the road. > >I first suspected the notorious Crank Position Sensor, which I replaced >last week. No joy. Had to have the Jeep towed home last weekend. (Wife >not happy). > >I've gone over the ALL the connections in the engine compartment, cleaned, >inspected and even tightened the female connections on those that looked >loose. All the grounds and battery cables have been cleaned. > >So now I suspect that the ignition control module is the culprit. Before I >spend $150.00 on a replacement I'd like to know if there is a way to test >the existing module? > >Any advice you could give me would be appreciated. > > >Dave in Columbus Thanks for the suggestions. I did switch the relays around, thinking that the fuel pump relay might be failing when hot. No help there. The Jeep has stalled on me only once and at that time I did check for fuel pump whine when turning on the ignition. Pump seemed to be running. I think I'll try my heat gun on the module as suggested. Maybe I can get it to fail in my garage so I can pinpoint the problem. I wish it would just fail completely with a cloud of smoke so I'd know exactly what it causing the stalling problem. The fuel pump, as far as I know is the original. It will probably wait until this winter to fail so I can replace it on my back in twenty degree weather. Again, thanks for the help! |
Re: Testing Ignition Module on 88 XJ
On Tue, 23 Sep 2003 10:35:23 -0400, noone@yahoo.com wrote:
>I've got a hot stalling problem on my 88 XJ. > >The Jeep runs perfectly most of the time, however after several "hot soaks" >(eg, my wife out shopping), or driven for several miles on the freeway with >the A/C on the engine just quits while driving down the road. > >I first suspected the notorious Crank Position Sensor, which I replaced >last week. No joy. Had to have the Jeep towed home last weekend. (Wife >not happy). > >I've gone over the ALL the connections in the engine compartment, cleaned, >inspected and even tightened the female connections on those that looked >loose. All the grounds and battery cables have been cleaned. > >So now I suspect that the ignition control module is the culprit. Before I >spend $150.00 on a replacement I'd like to know if there is a way to test >the existing module? > >Any advice you could give me would be appreciated. > > >Dave in Columbus Thanks for the suggestions. I did switch the relays around, thinking that the fuel pump relay might be failing when hot. No help there. The Jeep has stalled on me only once and at that time I did check for fuel pump whine when turning on the ignition. Pump seemed to be running. I think I'll try my heat gun on the module as suggested. Maybe I can get it to fail in my garage so I can pinpoint the problem. I wish it would just fail completely with a cloud of smoke so I'd know exactly what it causing the stalling problem. The fuel pump, as far as I know is the original. It will probably wait until this winter to fail so I can replace it on my back in twenty degree weather. Again, thanks for the help! |
Re: Testing Ignition Module on 88 XJ
In message <52m0nvseukcmr4u0trvo3ru7vhah9t72bl@4ax.com>, "noone@yahoo.com"
wrote: >I've got a hot stalling problem on my 88 XJ. > >The Jeep runs perfectly most of the time, however after several "hot soaks" >(eg, my wife out shopping), or driven for several miles on the freeway with >the A/C on the engine just quits while driving down the road. > >I first suspected the notorious Crank Position Sensor, which I replaced >last week. No joy. Had to have the Jeep towed home last weekend. (Wife >not happy). > >I've gone over the ALL the connections in the engine compartment, cleaned, >inspected and even tightened the female connections on those that looked >loose. All the grounds and battery cables have been cleaned. > >So now I suspect that the ignition control module is the culprit. Before I >spend $150.00 on a replacement I'd like to know if there is a way to test >the existing module? > >Any advice you could give me would be appreciated. > > >Dave in Columbus |
Re: Testing Ignition Module on 88 XJ
In message <52m0nvseukcmr4u0trvo3ru7vhah9t72bl@4ax.com>, "noone@yahoo.com"
wrote: >I've got a hot stalling problem on my 88 XJ. > >The Jeep runs perfectly most of the time, however after several "hot soaks" >(eg, my wife out shopping), or driven for several miles on the freeway with >the A/C on the engine just quits while driving down the road. > >I first suspected the notorious Crank Position Sensor, which I replaced >last week. No joy. Had to have the Jeep towed home last weekend. (Wife >not happy). > >I've gone over the ALL the connections in the engine compartment, cleaned, >inspected and even tightened the female connections on those that looked >loose. All the grounds and battery cables have been cleaned. > >So now I suspect that the ignition control module is the culprit. Before I >spend $150.00 on a replacement I'd like to know if there is a way to test >the existing module? > >Any advice you could give me would be appreciated. > > >Dave in Columbus |
Re: Testing Ignition Module on 88 XJ
In message <52m0nvseukcmr4u0trvo3ru7vhah9t72bl@4ax.com>, "noone@yahoo.com"
wrote: >I've got a hot stalling problem on my 88 XJ. > >The Jeep runs perfectly most of the time, however after several "hot soaks" >(eg, my wife out shopping), or driven for several miles on the freeway with >the A/C on the engine just quits while driving down the road. > >I first suspected the notorious Crank Position Sensor, which I replaced >last week. No joy. Had to have the Jeep towed home last weekend. (Wife >not happy). > >I've gone over the ALL the connections in the engine compartment, cleaned, >inspected and even tightened the female connections on those that looked >loose. All the grounds and battery cables have been cleaned. > >So now I suspect that the ignition control module is the culprit. Before I >spend $150.00 on a replacement I'd like to know if there is a way to test >the existing module? > >Any advice you could give me would be appreciated. > > >Dave in Columbus There isn't a test for the module. Basically, you test everything else, then replace the module. Many of AMC and Renault's diagnostic procedures started off with "Using a known good part..." Not very helpful if you have an intermittent problem that's not present while you're checking it. One thing you can try is unbolting the module, turning it over and massaging the underside with the engine running. Sometimes you can get them to quit running by doing this, verifying the module is bad. |
Re: Testing Ignition Module on 88 XJ
In message <52m0nvseukcmr4u0trvo3ru7vhah9t72bl@4ax.com>, "noone@yahoo.com"
wrote: >I've got a hot stalling problem on my 88 XJ. > >The Jeep runs perfectly most of the time, however after several "hot soaks" >(eg, my wife out shopping), or driven for several miles on the freeway with >the A/C on the engine just quits while driving down the road. > >I first suspected the notorious Crank Position Sensor, which I replaced >last week. No joy. Had to have the Jeep towed home last weekend. (Wife >not happy). > >I've gone over the ALL the connections in the engine compartment, cleaned, >inspected and even tightened the female connections on those that looked >loose. All the grounds and battery cables have been cleaned. > >So now I suspect that the ignition control module is the culprit. Before I >spend $150.00 on a replacement I'd like to know if there is a way to test >the existing module? > >Any advice you could give me would be appreciated. > > >Dave in Columbus There isn't a test for the module. Basically, you test everything else, then replace the module. Many of AMC and Renault's diagnostic procedures started off with "Using a known good part..." Not very helpful if you have an intermittent problem that's not present while you're checking it. One thing you can try is unbolting the module, turning it over and massaging the underside with the engine running. Sometimes you can get them to quit running by doing this, verifying the module is bad. |
Re: Testing Ignition Module on 88 XJ
In message <4c4d9be.0309231428.76e65795@posting.google.com> , "Rich" wrote:
>L.W.(ßill) ------ III <----------@cox.net> wrote in message news:<3F706836.52DB8946@cox.net>... >> Make sure your fuel pump is still working, hot, most have been >> replaced by your year. My test is just to listen for it running, turn >> the ignition on, and before cranking it should run for about five >> seconds before it automatically shuts off. Or test the fuel rail for >> about forty pounds. >> God Bless America, ßill O|||||||O >> mailto:-------------------- http://www.----------.com/ >> >> noone@yahoo.com wrote: >> > >> > I've got a hot stalling problem on my 88 XJ. >> > >> > The Jeep runs perfectly most of the time, however after several "hot soaks" >> > (eg, my wife out shopping), or driven for several miles on the freeway with >> > the A/C on the engine just quits while driving down the road. >> > >> > I first suspected the notorious Crank Position Sensor, which I replaced >> > last week. No joy. Had to have the Jeep towed home last weekend. (Wife >> > not happy). >> > >> > I've gone over the ALL the connections in the engine compartment, cleaned, >> > inspected and even tightened the female connections on those that looked >> > loose. All the grounds and battery cables have been cleaned. >> > >> > So now I suspect that the ignition control module is the culprit. Before I >> > spend $150.00 on a replacement I'd like to know if there is a way to test >> > the existing module? >> > >> > Any advice you could give me would be appreciated. >> > >> > Dave in Columbus > >I just had that happen to me I found a parts store that could test >mine I have a 85 XJ 2.8 and a new one was $39 Its been fine for two >months now.. Different animal. You're talking about a GM setup with the small module in the distributor. The Renix ign. module used in 88 is on the right fender near the relays and has a coil sitting on it. >85XJ >86XJ 3'lift >85 4x4 chev trk |
Re: Testing Ignition Module on 88 XJ
In message <4c4d9be.0309231428.76e65795@posting.google.com> , "Rich" wrote:
>L.W.(ßill) ------ III <----------@cox.net> wrote in message news:<3F706836.52DB8946@cox.net>... >> Make sure your fuel pump is still working, hot, most have been >> replaced by your year. My test is just to listen for it running, turn >> the ignition on, and before cranking it should run for about five >> seconds before it automatically shuts off. Or test the fuel rail for >> about forty pounds. >> God Bless America, ßill O|||||||O >> mailto:-------------------- http://www.----------.com/ >> >> noone@yahoo.com wrote: >> > >> > I've got a hot stalling problem on my 88 XJ. >> > >> > The Jeep runs perfectly most of the time, however after several "hot soaks" >> > (eg, my wife out shopping), or driven for several miles on the freeway with >> > the A/C on the engine just quits while driving down the road. >> > >> > I first suspected the notorious Crank Position Sensor, which I replaced >> > last week. No joy. Had to have the Jeep towed home last weekend. (Wife >> > not happy). >> > >> > I've gone over the ALL the connections in the engine compartment, cleaned, >> > inspected and even tightened the female connections on those that looked >> > loose. All the grounds and battery cables have been cleaned. >> > >> > So now I suspect that the ignition control module is the culprit. Before I >> > spend $150.00 on a replacement I'd like to know if there is a way to test >> > the existing module? >> > >> > Any advice you could give me would be appreciated. >> > >> > Dave in Columbus > >I just had that happen to me I found a parts store that could test >mine I have a 85 XJ 2.8 and a new one was $39 Its been fine for two >months now.. Different animal. You're talking about a GM setup with the small module in the distributor. The Renix ign. module used in 88 is on the right fender near the relays and has a coil sitting on it. >85XJ >86XJ 3'lift >85 4x4 chev trk |
Re: Testing Ignition Module on 88 XJ
On Wed, 24 Sep 2003 04:40:06 UTC noone@yahoo.com wrote:
> On Tue, 23 Sep 2003 10:35:23 -0400, noone@yahoo.com wrote: > > >I've got a hot stalling problem on my 88 XJ. > > > >The Jeep runs perfectly most of the time, however after several "hot soaks" > >(eg, my wife out shopping), or driven for several miles on the freeway with > >the A/C on the engine just quits while driving down the road. > > > >I first suspected the notorious Crank Position Sensor, which I replaced > >last week. No joy. Had to have the Jeep towed home last weekend. (Wife > >not happy). > > > >I've gone over the ALL the connections in the engine compartment, cleaned, > >inspected and even tightened the female connections on those that looked > >loose. All the grounds and battery cables have been cleaned. > > > >So now I suspect that the ignition control module is the culprit. Before I > >spend $150.00 on a replacement I'd like to know if there is a way to test > >the existing module? > > > >Any advice you could give me would be appreciated. > > > > > >Dave in Columbus > > > Thanks for the suggestions. I did switch the relays around, thinking that > the fuel pump relay might be failing when hot. No help there. The Jeep > has stalled on me only once and at that time I did check for fuel pump > whine when turning on the ignition. Pump seemed to be running. > > I think I'll try my heat gun on the module as suggested. Maybe I can get > it to fail in my garage so I can pinpoint the problem. I wish it would > just fail completely with a cloud of smoke so I'd know exactly what it > causing the stalling problem. > > The fuel pump, as far as I know is the original. It will probably wait > until this winter to fail so I can replace it on my back in twenty degree > weather. > > Again, thanks for the help! The first one I lost was also an 88 original - after 125k miles. I could hear it run, the pressure looked good before I started but as soon as I cranked it the pressure went to zip - pump couldn't even keep up on start. A cheap fuel pressure tester might save a lot of cussing. -- Will Honea |
Re: Testing Ignition Module on 88 XJ
On Wed, 24 Sep 2003 04:40:06 UTC noone@yahoo.com wrote:
> On Tue, 23 Sep 2003 10:35:23 -0400, noone@yahoo.com wrote: > > >I've got a hot stalling problem on my 88 XJ. > > > >The Jeep runs perfectly most of the time, however after several "hot soaks" > >(eg, my wife out shopping), or driven for several miles on the freeway with > >the A/C on the engine just quits while driving down the road. > > > >I first suspected the notorious Crank Position Sensor, which I replaced > >last week. No joy. Had to have the Jeep towed home last weekend. (Wife > >not happy). > > > >I've gone over the ALL the connections in the engine compartment, cleaned, > >inspected and even tightened the female connections on those that looked > >loose. All the grounds and battery cables have been cleaned. > > > >So now I suspect that the ignition control module is the culprit. Before I > >spend $150.00 on a replacement I'd like to know if there is a way to test > >the existing module? > > > >Any advice you could give me would be appreciated. > > > > > >Dave in Columbus > > > Thanks for the suggestions. I did switch the relays around, thinking that > the fuel pump relay might be failing when hot. No help there. The Jeep > has stalled on me only once and at that time I did check for fuel pump > whine when turning on the ignition. Pump seemed to be running. > > I think I'll try my heat gun on the module as suggested. Maybe I can get > it to fail in my garage so I can pinpoint the problem. I wish it would > just fail completely with a cloud of smoke so I'd know exactly what it > causing the stalling problem. > > The fuel pump, as far as I know is the original. It will probably wait > until this winter to fail so I can replace it on my back in twenty degree > weather. > > Again, thanks for the help! The first one I lost was also an 88 original - after 125k miles. I could hear it run, the pressure looked good before I started but as soon as I cranked it the pressure went to zip - pump couldn't even keep up on start. A cheap fuel pressure tester might save a lot of cussing. -- Will Honea |
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