Re: Help Please Jeep Cherokee won't start No Spark
 

Its always the CPS when there is no spark. Just replace it. Even it it isnt
the problem its probably a good idea.
KH

"MikeG" <boo@hoo.com> wrote in message
news:vril0ot95rt1e4@corp.supernews.com...
> I remember some time ago, I had a similar problem on a 97 XJ. What
happened
> my kid left the interior light on and it drained the batter. The onboard
> computer lost in program.
> I had to start it like a old carburator vehicle, pumping the gas, and
reving
> it up to keep it running for about 3 or 4 minutes untill the ROM
downloaded
> the program back to the computer - which controls the fuel, etc.
>
> Jeep told me this. I esentially re-booted my car.
>
> Odd thing. I've completely drainded my battery in the past, and didn't
have
> this happen.
>
> So try charing the battery way up, hop in, pump the gas a few times, hold
> the pedal down turn it over, if it sputters and tries, this may be the
> problem. Keep at it, mine stalled many times trying to keep it running.
I
> ended up having to vary the pedal the entire time.
>
> Mike
>
>
> "Tom Russell" <tomr@ix.netcom.com> wrote in message
> news:83403696.0310271742.23ef9ba8@posting.google.c om...
> > No luck. Sent it to a the shop. No luck there either. They say that
> > there is no power getting to this switch or to the onboard computer.
> > They are probing for loose wires etc.
> >
> > Damn
> >
> > TWR
> >
> > "Ron K" <rrrr@rnet.com> wrote in message
> news:<wc9nb.1754$Vl4.545240113@twister2.starband.n et>...
> > > He is referring to the top dead sensor switch on the bell housing,
find
> it
> > > unplug it then plug it back in it should start one time. When it is
shut
> off
> > > it will not start again until its replaced.
> > > Ron K
> > > "Tom Russell" <tomr@ix.netcom.com> wrote in message
> > > news:83403696.0310262201.198eeb62@posting.google.c om...
> > > > Hi:
> > > >
> > > > I've got a 1996 Jeep Cherokee. 4.0 with a standard transmission. I
> > > > parked her a couple of nights ago and she wouldn't start up again. I
> > > > checked for spark and got none. (Hopefully I'm doing that properly)
I
> > > > checked for and found no loose wires. I looked at the Distributor
Cap
> > > > and rotor. Both appear to be fine. They were both changed two weeks
> > > > ago along with the new plugs and wires.
> > > >
> > > > My first instinct was the electronic control module. According to
> > > > Jeep, this model does not have a module. Instead, it uses an onboard
> > > > computer module.
> > > > At almost $500, I'm not crazy about swapping that out unless I know
> > > > its really at fault. For kicks, I put on a new coil. No change.
> > > >
> > > > I spoke to a mechanic who suggested a Transmission Sensor ( I think
> > > > thats what he said...)Couldn't find reference to it in the Haynes
> > > > manual I have.
> > > >
> > > > I'm about ready to have it pulled into the shop. Before I do, I
> > > > thought I'd check to see if any of you folks had any ideas.
> > > >
> > > > Up till now (6.5 yearrs 185K miles) she has run flawlessly. I
> > > > mentioned earlier that I had just changed the plugs, rotor, cap and
> > > > wires. She ran well for a week or so. Then *poof*
> > > >
> > > > Any idea's would be appreciated.
> > > >
> > > > Thanks in advance.
> > > >
> > > > Tom
>
>

Re: Help Please Jeep Cherokee won't start No Spark
 

Ya right....

I changed my CPS and the prick stalled again 10 feet later.

Mine was an almost dead ground strap from the engine head to the
firewall cutting out the spark.

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's

Kevin in San Diego wrote:
>
> Its always the CPS when there is no spark. Just replace it. Even it it isnt
> the problem its probably a good idea.
> KH
>
> "MikeG" <boo@hoo.com> wrote in message
> news:vril0ot95rt1e4@corp.supernews.com...
> > I remember some time ago, I had a similar problem on a 97 XJ. What
> happened
> > my kid left the interior light on and it drained the batter. The onboard
> > computer lost in program.
> > I had to start it like a old carburator vehicle, pumping the gas, and
> reving
> > it up to keep it running for about 3 or 4 minutes untill the ROM
> downloaded
> > the program back to the computer - which controls the fuel, etc.
> >
> > Jeep told me this. I esentially re-booted my car.
> >
> > Odd thing. I've completely drainded my battery in the past, and didn't
> have
> > this happen.
> >
> > So try charing the battery way up, hop in, pump the gas a few times, hold
> > the pedal down turn it over, if it sputters and tries, this may be the
> > problem. Keep at it, mine stalled many times trying to keep it running.
> I
> > ended up having to vary the pedal the entire time.
> >
> > Mike
> >
> >
> > "Tom Russell" <tomr@ix.netcom.com> wrote in message
> > news:83403696.0310271742.23ef9ba8@posting.google.c om...
> > > No luck. Sent it to a the shop. No luck there either. They say that
> > > there is no power getting to this switch or to the onboard computer.
> > > They are probing for loose wires etc.
> > >
> > > Damn
> > >
> > > TWR
> > >
> > > "Ron K" <rrrr@rnet.com> wrote in message
> > news:<wc9nb.1754$Vl4.545240113@twister2.starband.n et>...
> > > > He is referring to the top dead sensor switch on the bell housing,
> find
> > it
> > > > unplug it then plug it back in it should start one time. When it is
> shut
> > off
> > > > it will not start again until its replaced.
> > > > Ron K
> > > > "Tom Russell" <tomr@ix.netcom.com> wrote in message
> > > > news:83403696.0310262201.198eeb62@posting.google.c om...
> > > > > Hi:
> > > > >
> > > > > I've got a 1996 Jeep Cherokee. 4.0 with a standard transmission. I
> > > > > parked her a couple of nights ago and she wouldn't start up again. I
> > > > > checked for spark and got none. (Hopefully I'm doing that properly)
> I
> > > > > checked for and found no loose wires. I looked at the Distributor
> Cap
> > > > > and rotor. Both appear to be fine. They were both changed two weeks
> > > > > ago along with the new plugs and wires.
> > > > >
> > > > > My first instinct was the electronic control module. According to
> > > > > Jeep, this model does not have a module. Instead, it uses an onboard
> > > > > computer module.
> > > > > At almost $500, I'm not crazy about swapping that out unless I know
> > > > > its really at fault. For kicks, I put on a new coil. No change.
> > > > >
> > > > > I spoke to a mechanic who suggested a Transmission Sensor ( I think
> > > > > thats what he said...)Couldn't find reference to it in the Haynes
> > > > > manual I have.
> > > > >
> > > > > I'm about ready to have it pulled into the shop. Before I do, I
> > > > > thought I'd check to see if any of you folks had any ideas.
> > > > >
> > > > > Up till now (6.5 yearrs 185K miles) she has run flawlessly. I
> > > > > mentioned earlier that I had just changed the plugs, rotor, cap and
> > > > > wires. She ran well for a week or so. Then *poof*
> > > > >
> > > > > Any idea's would be appreciated.
> > > > >
> > > > > Thanks in advance.
> > > > >
> > > > > Tom
> >
> >

Re: Help Please Jeep Cherokee won't start No Spark
 

Ya right....

I changed my CPS and the prick stalled again 10 feet later.

Mine was an almost dead ground strap from the engine head to the
firewall cutting out the spark.

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's

Kevin in San Diego wrote:
>
> Its always the CPS when there is no spark. Just replace it. Even it it isnt
> the problem its probably a good idea.
> KH
>
> "MikeG" <boo@hoo.com> wrote in message
> news:vril0ot95rt1e4@corp.supernews.com...
> > I remember some time ago, I had a similar problem on a 97 XJ. What
> happened
> > my kid left the interior light on and it drained the batter. The onboard
> > computer lost in program.
> > I had to start it like a old carburator vehicle, pumping the gas, and
> reving
> > it up to keep it running for about 3 or 4 minutes untill the ROM
> downloaded
> > the program back to the computer - which controls the fuel, etc.
> >
> > Jeep told me this. I esentially re-booted my car.
> >
> > Odd thing. I've completely drainded my battery in the past, and didn't
> have
> > this happen.
> >
> > So try charing the battery way up, hop in, pump the gas a few times, hold
> > the pedal down turn it over, if it sputters and tries, this may be the
> > problem. Keep at it, mine stalled many times trying to keep it running.
> I
> > ended up having to vary the pedal the entire time.
> >
> > Mike
> >
> >
> > "Tom Russell" <tomr@ix.netcom.com> wrote in message
> > news:83403696.0310271742.23ef9ba8@posting.google.c om...
> > > No luck. Sent it to a the shop. No luck there either. They say that
> > > there is no power getting to this switch or to the onboard computer.
> > > They are probing for loose wires etc.
> > >
> > > Damn
> > >
> > > TWR
> > >
> > > "Ron K" <rrrr@rnet.com> wrote in message
> > news:<wc9nb.1754$Vl4.545240113@twister2.starband.n et>...
> > > > He is referring to the top dead sensor switch on the bell housing,
> find
> > it
> > > > unplug it then plug it back in it should start one time. When it is
> shut
> > off
> > > > it will not start again until its replaced.
> > > > Ron K
> > > > "Tom Russell" <tomr@ix.netcom.com> wrote in message
> > > > news:83403696.0310262201.198eeb62@posting.google.c om...
> > > > > Hi:
> > > > >
> > > > > I've got a 1996 Jeep Cherokee. 4.0 with a standard transmission. I
> > > > > parked her a couple of nights ago and she wouldn't start up again. I
> > > > > checked for spark and got none. (Hopefully I'm doing that properly)
> I
> > > > > checked for and found no loose wires. I looked at the Distributor
> Cap
> > > > > and rotor. Both appear to be fine. They were both changed two weeks
> > > > > ago along with the new plugs and wires.
> > > > >
> > > > > My first instinct was the electronic control module. According to
> > > > > Jeep, this model does not have a module. Instead, it uses an onboard
> > > > > computer module.
> > > > > At almost $500, I'm not crazy about swapping that out unless I know
> > > > > its really at fault. For kicks, I put on a new coil. No change.
> > > > >
> > > > > I spoke to a mechanic who suggested a Transmission Sensor ( I think
> > > > > thats what he said...)Couldn't find reference to it in the Haynes
> > > > > manual I have.
> > > > >
> > > > > I'm about ready to have it pulled into the shop. Before I do, I
> > > > > thought I'd check to see if any of you folks had any ideas.
> > > > >
> > > > > Up till now (6.5 yearrs 185K miles) she has run flawlessly. I
> > > > > mentioned earlier that I had just changed the plugs, rotor, cap and
> > > > > wires. She ran well for a week or so. Then *poof*
> > > > >
> > > > > Any idea's would be appreciated.
> > > > >
> > > > > Thanks in advance.
> > > > >
> > > > > Tom
> >
> >

Re: Help Please Jeep Cherokee won't start No Spark
 

Ya right....

I changed my CPS and the prick stalled again 10 feet later.

Mine was an almost dead ground strap from the engine head to the
firewall cutting out the spark.

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's

Kevin in San Diego wrote:
>
> Its always the CPS when there is no spark. Just replace it. Even it it isnt
> the problem its probably a good idea.
> KH
>
> "MikeG" <boo@hoo.com> wrote in message
> news:vril0ot95rt1e4@corp.supernews.com...
> > I remember some time ago, I had a similar problem on a 97 XJ. What
> happened
> > my kid left the interior light on and it drained the batter. The onboard
> > computer lost in program.
> > I had to start it like a old carburator vehicle, pumping the gas, and
> reving
> > it up to keep it running for about 3 or 4 minutes untill the ROM
> downloaded
> > the program back to the computer - which controls the fuel, etc.
> >
> > Jeep told me this. I esentially re-booted my car.
> >
> > Odd thing. I've completely drainded my battery in the past, and didn't
> have
> > this happen.
> >
> > So try charing the battery way up, hop in, pump the gas a few times, hold
> > the pedal down turn it over, if it sputters and tries, this may be the
> > problem. Keep at it, mine stalled many times trying to keep it running.
> I
> > ended up having to vary the pedal the entire time.
> >
> > Mike
> >
> >
> > "Tom Russell" <tomr@ix.netcom.com> wrote in message
> > news:83403696.0310271742.23ef9ba8@posting.google.c om...
> > > No luck. Sent it to a the shop. No luck there either. They say that
> > > there is no power getting to this switch or to the onboard computer.
> > > They are probing for loose wires etc.
> > >
> > > Damn
> > >
> > > TWR
> > >
> > > "Ron K" <rrrr@rnet.com> wrote in message
> > news:<wc9nb.1754$Vl4.545240113@twister2.starband.n et>...
> > > > He is referring to the top dead sensor switch on the bell housing,
> find
> > it
> > > > unplug it then plug it back in it should start one time. When it is
> shut
> > off
> > > > it will not start again until its replaced.
> > > > Ron K
> > > > "Tom Russell" <tomr@ix.netcom.com> wrote in message
> > > > news:83403696.0310262201.198eeb62@posting.google.c om...
> > > > > Hi:
> > > > >
> > > > > I've got a 1996 Jeep Cherokee. 4.0 with a standard transmission. I
> > > > > parked her a couple of nights ago and she wouldn't start up again. I
> > > > > checked for spark and got none. (Hopefully I'm doing that properly)
> I
> > > > > checked for and found no loose wires. I looked at the Distributor
> Cap
> > > > > and rotor. Both appear to be fine. They were both changed two weeks
> > > > > ago along with the new plugs and wires.
> > > > >
> > > > > My first instinct was the electronic control module. According to
> > > > > Jeep, this model does not have a module. Instead, it uses an onboard
> > > > > computer module.
> > > > > At almost $500, I'm not crazy about swapping that out unless I know
> > > > > its really at fault. For kicks, I put on a new coil. No change.
> > > > >
> > > > > I spoke to a mechanic who suggested a Transmission Sensor ( I think
> > > > > thats what he said...)Couldn't find reference to it in the Haynes
> > > > > manual I have.
> > > > >
> > > > > I'm about ready to have it pulled into the shop. Before I do, I
> > > > > thought I'd check to see if any of you folks had any ideas.
> > > > >
> > > > > Up till now (6.5 yearrs 185K miles) she has run flawlessly. I
> > > > > mentioned earlier that I had just changed the plugs, rotor, cap and
> > > > > wires. She ran well for a week or so. Then *poof*
> > > > >
> > > > > Any idea's would be appreciated.
> > > > >
> > > > > Thanks in advance.
> > > > >
> > > > > Tom
> >
> >

Re: Help Please Jeep Cherokee won't start No Spark
 

Mike Romain did pass the time by typing:
> Ya right....
>
> I changed my CPS and the prick stalled again 10 feet later.
>
> Mine was an almost dead ground strap from the engine head to the
> firewall cutting out the spark.

Yep. I rilly should put a diagnosics page up that
says

Step 1) Run a jumper cable between the engine and a good frame ground
Step 2) Clean the connectors
Step 3) ...

Those dang braided ground strap causes all sorts of problems.

Re: Help Please Jeep Cherokee won't start No Spark
 

Mike Romain did pass the time by typing:
> Ya right....
>
> I changed my CPS and the prick stalled again 10 feet later.
>
> Mine was an almost dead ground strap from the engine head to the
> firewall cutting out the spark.

Yep. I rilly should put a diagnosics page up that
says

Step 1) Run a jumper cable between the engine and a good frame ground
Step 2) Clean the connectors
Step 3) ...

Those dang braided ground strap causes all sorts of problems.

Re: Help Please Jeep Cherokee won't start No Spark
 

Mike Romain did pass the time by typing:
> Ya right....
>
> I changed my CPS and the prick stalled again 10 feet later.
>
> Mine was an almost dead ground strap from the engine head to the
> firewall cutting out the spark.

Yep. I rilly should put a diagnosics page up that
says

Step 1) Run a jumper cable between the engine and a good frame ground
Step 2) Clean the connectors
Step 3) ...

Those dang braided ground strap causes all sorts of problems.

Re: Help Please Jeep Cherokee won't start No Spark
 

LOL why did I know Mike was gonna say the ground strap.
KH

"DougW" <post.replies@invalid.address> wrote in message
news:fDxub.1862$3z5.1857@okepread01...
> Mike Romain did pass the time by typing:
> > Ya right....
> >
> > I changed my CPS and the prick stalled again 10 feet later.
> >
> > Mine was an almost dead ground strap from the engine head to the
> > firewall cutting out the spark.
>
> Yep. I rilly should put a diagnosics page up that
> says
>
> Step 1) Run a jumper cable between the engine and a good frame ground
> Step 2) Clean the connectors
> Step 3) ...
>
> Those dang braided ground strap causes all sorts of problems.
>
>

Re: Help Please Jeep Cherokee won't start No Spark
 

LOL why did I know Mike was gonna say the ground strap.
KH

"DougW" <post.replies@invalid.address> wrote in message
news:fDxub.1862$3z5.1857@okepread01...
> Mike Romain did pass the time by typing:
> > Ya right....
> >
> > I changed my CPS and the prick stalled again 10 feet later.
> >
> > Mine was an almost dead ground strap from the engine head to the
> > firewall cutting out the spark.
>
> Yep. I rilly should put a diagnosics page up that
> says
>
> Step 1) Run a jumper cable between the engine and a good frame ground
> Step 2) Clean the connectors
> Step 3) ...
>
> Those dang braided ground strap causes all sorts of problems.
>
>

Re: Help Please Jeep Cherokee won't start No Spark
 

LOL why did I know Mike was gonna say the ground strap.
KH

"DougW" <post.replies@invalid.address> wrote in message
news:fDxub.1862$3z5.1857@okepread01...
> Mike Romain did pass the time by typing:
> > Ya right....
> >
> > I changed my CPS and the prick stalled again 10 feet later.
> >
> > Mine was an almost dead ground strap from the engine head to the
> > firewall cutting out the spark.
>
> Yep. I rilly should put a diagnosics page up that
> says
>
> Step 1) Run a jumper cable between the engine and a good frame ground
> Step 2) Clean the connectors
> Step 3) ...
>
> Those dang braided ground strap causes all sorts of problems.
>
>