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SUVs Jeep Cherokee and Jeep Grand Cherokee Jeep Cherokee Start Stall Idle Problems
183 messages, Last post on Dec 04, 2009 at 3:19 PM
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Replying to: hatingthisjeep (Aug 10, 2009 12:20 pm) |
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Last night I drove to the hospital and back with no prob. Parked the car and the next morning tried to start and it didn't want to. Turned key, engine turned over and didn't start. Tried again while giving gas and started up but all interior light dimmed and as soon as i let the gas pedal go car completely shut off. Any suggestions?
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I have a 93 Cherokee that starts fine and runs fine, but occasionally the engine just cuts out without warning. It usually restarts right away, but sometimes takes several minutes. I just bought it, so I am not too familiar with it. Some of the gauges jump when I start it, but otherwise there aren't any obvious problems with the vehicle other than the locks need lubing. It has 125k miles on it. I bought it "as is", so I expected there might be a problem or two, but this particular one is obnoxious. The body is rough, but everything works EXCEPT for the stalling problem. HELP!!!!!!
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Replying to: timdooling (Nov 17, 2009 9:00 pm)
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Replying to: tuggajb (Nov 18, 2009 1:27 pm) The battery works fine. I have no charging problems, and it cranks fine after the stall. Plus, there is no sputtering or anything like that when it stalls. The engine just stops dead, and I have to wait a little while before it will start again sometimes (sometimes hours). I am not getting any check engine lights except when I initially turn the key on. Is that perhaps an indication that the computer is history? There doesn't seem to be any other problems in the electrical system. The car cranks fine after stalling, and the problem acts every bit like a loose wire problem. Any other suggestions? |
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Replying to: robp1115 (Nov 03, 2009 9:44 am) Possible short in the starter, or the battery cables need to be checked. If the car is parked outside a lot, the connections at the battery tend to become corroded and act like a loose wire problem. Also, the engine grounding could have a similar problem if vehicle is parked outside. |
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Replying to: hatingthisjeep (Aug 10, 2009 12:20 pm) 1) CHECK YOUR CONNECTIONS AT THE ECU (ENGINE CONTROL UNIT) MAYBE CALLED THE PCU (POWERTRAIN CONTROL UNIT) ON THE PASSENGER SIDE FIREWALL. ON 1998 AND EARLIER THE 3 PLUGS SOMETIMES GET A BAD CONNECTION. IT IS USUALLY THE ONE CLOSEST TO THE FENDER. UNPLUG, SPRAY WITH CLEANER AND REPLUG. YOU MAY EVEN HAVE TO WRAP A ZIP TIE AROUND THE UNIT TO KEEP THE PLUG IN TIGHT. 2) THIS MAY ALSO BE THE PROBLEM, IT IS GOING TO SOUND SCREWY BUT THERE ARE TORX SCREWS ON THE 1998 AND EARLIER ECU. BACK THEM OUT ABOUT A THIRD OF A TURN, THE SCREWS ARE TOO LONG AND ARE CAUSING SOME KIND OF SHORT IN THE CONNECTION. 3) FOR 1999 AND LATER I had same problem.... 87,000 2000 grand cherokee 4.7l when i let off the gas it might stall. happens 1 to 4 times a day. so far i have replaced the crank shaft sensor - it stopped stalling for 3 days $130 cleaned the throttle boddy free replaced the throttle position sensor $72 replaced the idle air control sensor $132 replaced the map manafold airflow sensor $125 no luck it is still stalling. not sure if i remember the prices right on these parts.... by the way i have done all the work myself. it was about 30 minutes for most parts. i just ordered a rebuilt ecu or pcu engine control unit. they program in the vin, mileage and part nbr so you gc will recognize it. $185 we will see when that comes..... IT CAME AND THAT SEEMS TO HAVE FIXED THE PROBLEM..... BEEN A WEEK.... SO FAR SO GOOD alan |
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Replying to: timdooling (Nov 17, 2009 9:00 pm) DO NOT KNOW IF IT WORKS FOR YOUR YEAR.... 1) CHECK YOUR CONNECTIONS AT THE ECU (ENGINE CONTROL UNIT) MAYBE CALLED THE PCU (POWERTRAIN CONTROL UNIT) ON THE PASSENGER SIDE FIREWALL. ON 1998 AND EARLIER THE 3 PLUGS SOMETIMES GET A BAD CONNECTION. IT IS USUALLY THE ONE CLOSEST TO THE FENDER. UNPLUG, SPRAY WITH CLEANER AND REPLUG. YOU MAY EVEN HAVE TO WRAP A ZIP TIE AROUND THE UNIT TO KEEP THE PLUG IN TIGHT. 2) THIS MAY ALSO BE THE PROBLEM, IT IS GOING TO SOUND SCREWY BUT THERE ARE TORX SCREWS ON THE 1998 AND EARLIER ECU. BACK THEM OUT ABOUT A THIRD OF A TURN, THE SCREWS ARE TOO LONG AND ARE CAUSING SOME KIND OF SHORT IN THE CONNECTION. 3) FOR 1999 AND LATER I had same problem.... 87,000 2000 grand cherokee 4.7l when i let off the gas it might stall. happens 1 to 4 times a day. so far i have replaced the crank shaft sensor - it stopped stalling for 3 days $130 cleaned the throttle boddy free replaced the throttle position sensor $72 replaced the idle air control sensor $132 replaced the map manafold airflow sensor $125 no luck it is still stalling. not sure if i remember the prices right on these parts.... by the way i have done all the work myself. it was about 30 minutes for most parts. i just ordered a rebuilt ecu or pcu engine control unit. they program in the vin, mileage and part nbr so you gc will recognize it. $185 we will see when that comes..... IT CAME AND THAT SEEMS TO HAVE FIXED THE PROBLEM..... BEEN A WEEK.... SO FAR SO GOOD alan |
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Replying to: hatingthisjeep (Aug 10, 2009 12:20 pm) 1. Vehicle would idle and run fine, but then the ignition would simply disconnect and the engine would die. No sputtering, just an ignition cutoff. 2. Vehicle then wouldn't restart for hours, but would eventually. 3. I found I could ground the engine block and get it to start. 4. There was no "check engine" light. I took it to the local Jeep dealer and had a diagnostic run. They checked the crankcase sensor (the one that tells the engine when piston 1 should be firing), and it was bad. Replaced that for $300. Runs fine now, no stalls at all. Purrs like a mountain lion looking at a sheep. Don't mess with it. Take it to the Jeep dealer for a diagnostic. In the meantime, try grounding the engine block to the negative terminal of the battery and then to the side of the vehicle. This might get you going for a short time. Hope this helps. |
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