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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 |
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