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Re: '96 Jeep Grand Cherokee 4.0L - dies while driving......
Ed Wojciechowski did pass the time by typing:
> First time posting...the car has roughly 140k on it. The problem is, when > you're driving it just dies on you. The tach goes to zero and seconds later > there is no power. But, there are times that the tach goes to zero and it > does not die. No check engine light comes on, so this is no help. I checked > the crank sensor, it was good, I replaced the coil pick up thinking it was > going bad. Any suggestions? Hmm. Well, if your sure it's not the CPS, that leaves a few other options. A bad ESD relay (Emergency Shutdown) can do this. 9.00 part but can be easily tested. It's in the relay center behind the battery. What do the codes tell you? http://members.cox.net/wilsond/engine_codes.html Tach hitting zero sounds more like an electrical problem, the CPS (Cam Position Sensor) located in the distributor might be your cause. Other possibilites are loose ground/pos connections, rusted out engine ground strap, etc. Start with the codes. -- DougW |
Re: '96 Jeep Grand Cherokee 4.0L - dies while driving......
Ed Wojciechowski did pass the time by typing:
> First time posting...the car has roughly 140k on it. The problem is, when > you're driving it just dies on you. The tach goes to zero and seconds later > there is no power. But, there are times that the tach goes to zero and it > does not die. No check engine light comes on, so this is no help. I checked > the crank sensor, it was good, I replaced the coil pick up thinking it was > going bad. Any suggestions? Hmm. Well, if your sure it's not the CPS, that leaves a few other options. A bad ESD relay (Emergency Shutdown) can do this. 9.00 part but can be easily tested. It's in the relay center behind the battery. What do the codes tell you? http://members.cox.net/wilsond/engine_codes.html Tach hitting zero sounds more like an electrical problem, the CPS (Cam Position Sensor) located in the distributor might be your cause. Other possibilites are loose ground/pos connections, rusted out engine ground strap, etc. Start with the codes. -- DougW |
Re: '96 Jeep Grand Cherokee 4.0L - dies while driving......
As an aside, how did you check and determine that the crankshaft position
sensor was good? If it's intermittent, it'd be hard to know for sure one way or the other. Jerry -- Jerry Bransford To email, remove 'me' from my email address KC6TAY, PP-ASEL See the Geezer Jeep at http://members.cox.net/jerrypb/ "Ed Wojciechowski" <wojo@andrew.cmu.edu> wrote in message news:2129515.1065180340@boldme12.andrew.ad.cmu.edu ... > First time posting...the car has roughly 140k on it. The problem is, when > you're driving it just dies on you. The tach goes to zero and seconds later > there is no power. But, there are times that the tach goes to zero and it > does not die. No check engine light comes on, so this is no help. I checked > the crank sensor, it was good, I replaced the coil pick up thinking it was > going bad. Any suggestions? |
Re: '96 Jeep Grand Cherokee 4.0L - dies while driving......
As an aside, how did you check and determine that the crankshaft position
sensor was good? If it's intermittent, it'd be hard to know for sure one way or the other. Jerry -- Jerry Bransford To email, remove 'me' from my email address KC6TAY, PP-ASEL See the Geezer Jeep at http://members.cox.net/jerrypb/ "Ed Wojciechowski" <wojo@andrew.cmu.edu> wrote in message news:2129515.1065180340@boldme12.andrew.ad.cmu.edu ... > First time posting...the car has roughly 140k on it. The problem is, when > you're driving it just dies on you. The tach goes to zero and seconds later > there is no power. But, there are times that the tach goes to zero and it > does not die. No check engine light comes on, so this is no help. I checked > the crank sensor, it was good, I replaced the coil pick up thinking it was > going bad. Any suggestions? |
Re: '96 Jeep Grand Cherokee 4.0L - dies while driving......
As an aside, how did you check and determine that the crankshaft position
sensor was good? If it's intermittent, it'd be hard to know for sure one way or the other. Jerry -- Jerry Bransford To email, remove 'me' from my email address KC6TAY, PP-ASEL See the Geezer Jeep at http://members.cox.net/jerrypb/ "Ed Wojciechowski" <wojo@andrew.cmu.edu> wrote in message news:2129515.1065180340@boldme12.andrew.ad.cmu.edu ... > First time posting...the car has roughly 140k on it. The problem is, when > you're driving it just dies on you. The tach goes to zero and seconds later > there is no power. But, there are times that the tach goes to zero and it > does not die. No check engine light comes on, so this is no help. I checked > the crank sensor, it was good, I replaced the coil pick up thinking it was > going bad. Any suggestions? |
Re: '96 Jeep Grand Cherokee 4.0L - dies while driving......
I had an intermittent CPS on my J**P a few years ago, it would keep stalling
and would die, when the tach dropped to zero, unless you happened to "punch" the gas at the correct time, but achieving this timing was difficult when your in the passing lane doing 70-80 mph down the highway (not to mention the pucker factor involved). Eventually after many trips to the stealership the J**P expert (he knew his J**P's inside and out, very good guy) decided to change the CPS on spec. 4 years ands thousand of km's later no more problems with unwanted stalling. Snow... 93 XJ, 4.0, 90% stock & 85% new. "Jerry Bransford" <jerrypb@mecox.net> wrote in message news:eVnfb.40144$gv5.16263@fed1read05... > As an aside, how did you check and determine that the crankshaft position > sensor was good? If it's intermittent, it'd be hard to know for sure one > way or the other. > > Jerry > -- > Jerry Bransford > To email, remove 'me' from my email address > KC6TAY, PP-ASEL > See the Geezer Jeep at > http://members.cox.net/jerrypb/ > > "Ed Wojciechowski" <wojo@andrew.cmu.edu> wrote in message > news:2129515.1065180340@boldme12.andrew.ad.cmu.edu ... > > First time posting...the car has roughly 140k on it. The problem is, when > > you're driving it just dies on you. The tach goes to zero and seconds > later > > there is no power. But, there are times that the tach goes to zero and it > > does not die. No check engine light comes on, so this is no help. I > checked > > the crank sensor, it was good, I replaced the coil pick up thinking it was > > going bad. Any suggestions? > > |
Re: '96 Jeep Grand Cherokee 4.0L - dies while driving......
I had an intermittent CPS on my J**P a few years ago, it would keep stalling
and would die, when the tach dropped to zero, unless you happened to "punch" the gas at the correct time, but achieving this timing was difficult when your in the passing lane doing 70-80 mph down the highway (not to mention the pucker factor involved). Eventually after many trips to the stealership the J**P expert (he knew his J**P's inside and out, very good guy) decided to change the CPS on spec. 4 years ands thousand of km's later no more problems with unwanted stalling. Snow... 93 XJ, 4.0, 90% stock & 85% new. "Jerry Bransford" <jerrypb@mecox.net> wrote in message news:eVnfb.40144$gv5.16263@fed1read05... > As an aside, how did you check and determine that the crankshaft position > sensor was good? If it's intermittent, it'd be hard to know for sure one > way or the other. > > Jerry > -- > Jerry Bransford > To email, remove 'me' from my email address > KC6TAY, PP-ASEL > See the Geezer Jeep at > http://members.cox.net/jerrypb/ > > "Ed Wojciechowski" <wojo@andrew.cmu.edu> wrote in message > news:2129515.1065180340@boldme12.andrew.ad.cmu.edu ... > > First time posting...the car has roughly 140k on it. The problem is, when > > you're driving it just dies on you. The tach goes to zero and seconds > later > > there is no power. But, there are times that the tach goes to zero and it > > does not die. No check engine light comes on, so this is no help. I > checked > > the crank sensor, it was good, I replaced the coil pick up thinking it was > > going bad. Any suggestions? > > |
Re: '96 Jeep Grand Cherokee 4.0L - dies while driving......
I had an intermittent CPS on my J**P a few years ago, it would keep stalling
and would die, when the tach dropped to zero, unless you happened to "punch" the gas at the correct time, but achieving this timing was difficult when your in the passing lane doing 70-80 mph down the highway (not to mention the pucker factor involved). Eventually after many trips to the stealership the J**P expert (he knew his J**P's inside and out, very good guy) decided to change the CPS on spec. 4 years ands thousand of km's later no more problems with unwanted stalling. Snow... 93 XJ, 4.0, 90% stock & 85% new. "Jerry Bransford" <jerrypb@mecox.net> wrote in message news:eVnfb.40144$gv5.16263@fed1read05... > As an aside, how did you check and determine that the crankshaft position > sensor was good? If it's intermittent, it'd be hard to know for sure one > way or the other. > > Jerry > -- > Jerry Bransford > To email, remove 'me' from my email address > KC6TAY, PP-ASEL > See the Geezer Jeep at > http://members.cox.net/jerrypb/ > > "Ed Wojciechowski" <wojo@andrew.cmu.edu> wrote in message > news:2129515.1065180340@boldme12.andrew.ad.cmu.edu ... > > First time posting...the car has roughly 140k on it. The problem is, when > > you're driving it just dies on you. The tach goes to zero and seconds > later > > there is no power. But, there are times that the tach goes to zero and it > > does not die. No check engine light comes on, so this is no help. I > checked > > the crank sensor, it was good, I replaced the coil pick up thinking it was > > going bad. Any suggestions? > > |
Re: '96 Jeep Grand Cherokee 4.0L - dies while driving......
Maybe the pcm has gone bad. It does happen to all vehicles sometimes.
In article <2129515.1065180340@boldme12.andrew.ad.cmu.edu>, Ed Wojciechowski <wojo@andrew.cmu.edu> wrote: > First time posting...the car has roughly 140k on it. The problem is, when > you're driving it just dies on you. The tach goes to zero and seconds later > there is no power. But, there are times that the tach goes to zero and it > does not die. No check engine light comes on, so this is no help. I checked > the crank sensor, it was good, I replaced the coil pick up thinking it was > going bad. Any suggestions? -- America Bless God. |
Re: '96 Jeep Grand Cherokee 4.0L - dies while driving......
Maybe the pcm has gone bad. It does happen to all vehicles sometimes.
In article <2129515.1065180340@boldme12.andrew.ad.cmu.edu>, Ed Wojciechowski <wojo@andrew.cmu.edu> wrote: > First time posting...the car has roughly 140k on it. The problem is, when > you're driving it just dies on you. The tach goes to zero and seconds later > there is no power. But, there are times that the tach goes to zero and it > does not die. No check engine light comes on, so this is no help. I checked > the crank sensor, it was good, I replaced the coil pick up thinking it was > going bad. Any suggestions? -- America Bless God. |
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