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Jeep Grand Cherokee Start Stall Idle Problems

589 messages,  Last post on Nov 26, 2009 at 4:03 PM

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#580 of 589 2000 Jeep Grand Cherokee stalls at idle by jhonp Nov 12, 2009 (5:45 pm)
2000 Jeep grand cherokee pushing 215,000. miles stills runs good but now at low idle in or out of gear it idles at or bellow 5,000 rpm sometimes so low that it stalls out. When I give it gas it runs good until the vehicle comes to a stop, then it dies. Temperature does seem to have an effect the colder the outside temp or if the eng is cold it seems to do it more often, It is not a consistent problem, but it occurs often. I took it to a shop a while back they said the check eng light threw out air intake censor problem, I replaced it twice each time it helps for a little while then goes back to same old pattern. Now whatever code its throwing out, the check eng light does not stay on all the time, its on and off. I am kind of tight on cash right now specially the way things are these days, Just getting the code read is going to cost over $100.00, am a diesel mechanic but gas engines are a headache! Does any body have any advice? Please hellllpppppp!!!!!!!! Replies to this message: aneke007 (Nov 16, 2009 3:15 pm) alby3 (Nov 17, 2009 5:31 am)
#581 of 589 Re: My 06 Jeep G.C. will turn off while driving, please help! [osborneash2] by aneke007 Nov 16, 2009 (3:10 pm)
Replying to: osborneash2 (Oct 20, 2009 5:14 pm) I have been experiencing the same thing and have had my Jeep in the shop since May and have not been able to drive it. I had them Change the crank shaft sensor, the cam shaft censor, and the temp censor, all with great expense and none of it worked. When it was put on the machine to see what was wrong it always came up as the crank shaft and cam sensors. I called my dad and he called everyone he knew with a jeep and low and behold the problem was a $30.00 part called the ignition coil. It took five minutes to put on. My Jeep is now running. Thank God! Hope this helps.
#582 of 589 Re: 2000 Jeep Grand Cherokee stalls at idle [jhonp] by aneke007 Nov 16, 2009 (3:15 pm)
Replying to: jhonp (Nov 12, 2009 5:45 pm) Auto zone $ 30.00 ignition coil you can put on yourself. This part does not show up on those machines. My car would come to a stop and die. I would drive and would stall, it was hesitant and not a consistant problem. My dad researched and found that several people have the same problem. Most people have changed their crank sensor and cam shafts twice before asking a friend with a Jeep if they knew what the problem was. It is the ignition coil that sends the right information to the car iginition system to function properly. Good Luck.
#583 of 589 Re: 2000 Jeep Grand Cherokee stalls at idle [jhonp] by alby3 Nov 17, 2009 (5:31 am)
Replying to: jhonp (Nov 12, 2009 5:45 pm) 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. GOT NO CODES..... 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. by the way i have done all the work myself. it was about 30 minutes for most parts NOT POSITIVE ON THE PARTS PRICES 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..... SWAPPED OUT THE ECU AND THIS SEEMS TO HAVE SOLVED IT........ IF I WERE YOU I WOULD START WITH THE ECU alan
#584 of 589 Re: Electrical Starting Issue JGC 2004 -ODD!!! [spriest] by barryz Nov 19, 2009 (10:09 am)
Replying to: spriest (Jul 28, 2009 2:31 am) Did you figure this out? My 99 grand cherokee just did this yesterday. first thing, i started car but got strange abs light on, i gave gas, it went out, and i drove. after i shut off, i tried to start again, acted like no batterey, no cranking, no interior lights or dash lights, then gauges flipped to max, interior light worked, radio clock at 12:00, dash lights ok and started. i turned off and on a few times ok, then it does again.Battery is strong when system comes back up and starts right up, but acts like no battery or bad batterey when fail is happening. i read a similar post that someone said ignition coil, could it be a intermittent short? I had a new crank position sensor 3 months ago, that was a different problem, car cranked but would not fire for that problem. This one acts like battery is not on.  Below is the post i am replying to.   "I had the EXACT same problem yesterday. My issue began after the vehicle was running. I heard a loud pop from the radio speakers and observed the voltage gauge floating while driving. After I got home and turned the Jeep off, it would not crank. No interior or brake lights, nothing at all that indicated I even had a battery connected. All of my gauges were pulsing and flipping over wildly with or without the key in the ignition and I could hear a faint clicking noise timed perfectly with the pulsing of the gauges. I let it sit for about an hour and it finally looked normal on the dash and sure enough - it turned over fine and all my gauges are back to normal. Even the pre-sets on the radio are still there. The only noticeable difference is that my clock on the radio is wrong. Did you ever find out the problem? Has anyone else encountered this problem and if so - what's my next step in troubleshooting this issue?"
#585 of 589 will not start by alby3 Nov 19, 2009 (1:05 pm)
last time mine would not start, the battery cable was loose..... just a little but it was enough, cleaned the post and the cable reconnected and it has been fine since.
#586 of 589 Stall during first 10 minutes by willyt1 Nov 20, 2009 (2:14 pm)
My 95 GC 5.7 auto. stalls predictably after a few miles. RIt restarts and stumbles and dies unless I pump the gas. After a couple restarts in less than a minute it will start and run. The last time it started I held the throttle at 2500 RPM and it ran and lost 500 RPM then went back to 2500 RPM a couple times as if there was some kind of switch being thrown. 30 seconds later it was fine. It won't do this again unless stone cold many hours later. No indicators as to the problem though the tach says the idle is 300 RPM. Cold RPM starts at 800-1000 RPM. Once it is through with it's warm up fit, it will run normally. My mech. is going nuts and says this is new to him. I started it at home last week and let it idle. In 20 minutes it stalled just like the driving probs. BTW, it never stalls while going down the road, only when coming to a stop sign or red light. Bill
#587 of 589 99 GC has rough idle and stalls when giving gas by 99wjguy Nov 26, 2009 (4:29 am)
i have a 99 grand cherokee ltd 4.7. jeep runs fine at a high rpm and rough at low rpm and stalls when you put it in gear and try to drive. i have changed idle air control, throttle position sensor, gave it a tune up, cleaned fuel lines, and checked fuel pressure, even bought a new ECM. i dont know what else could be the problem. Any ideas??? Replies to this message: alby3 (Nov 26, 2009 4:03 pm)
#588 of 589 Re: 99 GC has rough idle and stalls when giving gas [99wjguy] by alby3 Nov 26, 2009 (4:03 pm)
Replying to: 99wjguy (Nov 26, 2009 4:29 am) grand cherokee stalls or dies out. if you are not getting anu codes ..... that malkes me think ECU       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) 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

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