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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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#538 of 589 JEEP GRAND CHEROKEE 5.2 4x4 PCV IDLE PROBLEMS!!! by sirpilla Jul 14, 2009 (12:16 pm)
I have a 1994 Jeep Grand Cherokee Lerado 4x4 all wheel drive with a 5.2 Liter(318) engine. Computer only throws an end code when trying to read with key turned 3 times and Auto Zone and Advanced Auto both said it's too old to read the codes with their meter. Last year I replaced the Cap and rotor along with the spark plugs and wire and now Within 2 weeks I have Replaced the Spark Plugs, Trottle Position Sensor, Air Idle Control Sensor, fuel filter, fuel pump checks out fine, PCV and hose that connects it to the engine were replaced twice in a week, cleaned all 8 fuel injectors and replaced all 16 of their O-Rings. fuel rail pressure is and was before cleaning injectors, exactly in spec 31 psi off and 39 psi when started. being despirate to try anything we added SeaFoam to the Valve cover and gas tank as a last resort and yet STILL after all of this it has a rough shaking my Jeep idle! When the PCV hose is hooked up, it starts and stalls, when you disconnect the PCV from the hose it stays running with the sluggish rough idle but it is the only way to keep it running! The minute you plug in the PCV the engine dies and doesn't want to restart until it's unplugged again! HELP ME PLEASE, I LOVE MY JEEP!!!
#539 of 589 09 stalling issue by raelinda Jul 22, 2009 (9:26 am)
2009 grand Cherokee (14K miles) stalls when slowing down for off ramps or lights dealer has replaced computer and ignition - did 3rd attempt for lemon law but they can not make it die so nothing wrong with it - we can not make it happen but it has died since computer fixed. now waiting for lemon cases to move forward due to sale of Chrysler.   Any other ideas of what we can check to prove there is an issue?
#540 of 589 Re: Electrical Starting Issue JGC 2004 -ODD!!! [bandit71] by spriest Jul 28, 2009 (2:31 am)
Replying to: bandit71 (Nov 03, 2008 9:24 am) Bandit71,   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?   Same vehicle - 2004 Jeep Grand Cherokee Limited (83k)   I need help!!! Replies to this message: sccorp8 (Sep 16, 2009 5:57 am) barryz (Nov 19, 2009 10:09 am)
#541 of 589 Re: problem with hot weather start [jnunez] by diamond25 Aug 03, 2009 (4:10 am)
Replying to: jnunez (Jul 19, 2007 4:04 pm) I have a 2001 jeep cherokee that seems to do the same thing. Have you found a conculsion yet on the problem? Replies to this message: spriest (Aug 06, 2009 5:23 am)
#542 of 589 Re: problem with hot weather start [diamond25] by spriest Aug 06, 2009 (5:23 am)
Replying to: diamond25 (Aug 03, 2009 4:10 am) Not a clue. still working the issue. b/c it's hard to duplicate the problem at will, it's hard to narrow down.
#543 of 589 Re: Won't Start [knick31] by dayneseditz Aug 12, 2009 (5:11 am)
Replying to: knick31 (Aug 02, 2007 8:49 pm) body control modgle i can spell but i just had the same problem it in the pass side kick panel
#544 of 589 96 Jeep Grand Cherokee stalling out on me.. by jygriff1 Aug 14, 2009 (9:00 pm)
I have a 96 Jeep Grand Cherokee Laredo, well recently in the mornings after starting and driving to my first stop or red light when stopped and waiting the Jeep will die. After putting it in Park it starts back up and then I drive it down the road a few miles and it doesnt happen again. All through the day it doesnt happen again. If it sits for overnight or for several hours, the first start and drive is when it seems to happen. I thought it might be just water in the tank or fuel line but have ruled this out. Any suggestions would be helpful. Thanks Replies to this message: finisher (Aug 15, 2009 6:08 am) mamma (Aug 15, 2009 7:57 am)
#545 of 589 Re: 96 Jeep Grand Cherokee stalling out on me.. [jygriff1] by finisher Aug 15, 2009 (6:08 am)
Replying to: jygriff1 (Aug 14, 2009 9:00 pm) My 1996 4.0 Grand Cherokee had an intermitnet hesitation while driving at freeway speeds. Never completely stalled. Installed a new craknshaft position sensor and that cured the problem. A couple of months later it would have a hard time starting and run poorly until it would not start at all. Installed a new fuel pump assembly and that took care of the problem. Fuel pump assembly is expensive because it includes fuel gauge sensor and other stuff. Around $425.00 for the part. Another stupid design. Good luck. Replies to this message: mamma (Aug 15, 2009 7:57 am)
#546 of 589 Re: 96 Jeep Grand Cherokee stalling out on me.. [finisher] by mamma Aug 15, 2009 (7:57 am)
Replying to: finisher (Aug 15, 2009 6:08 am) You should look up the word stalling, rough idle. There have been many threads; one of which includes the possibility of needing a new computer becuase of some improper bolt wear. The new computer solved mine, not for cheap, though.
#547 of 589 Re: 1996 Jeep GC will not run [harpplaya] by murfdog13 Aug 16, 2009 (7:58 am)
Replying to: harpplaya (Jun 04, 2009 12:37 pm) hey buddy im experiencing the same problem with my 96jgc i changed my starter purchased a new battery now the gauges dont work and the engine wont turn over so was it the ignition switched that was causing yout the problem Replies to this message: 96jeep2 (Aug 16, 2009 6:06 pm)

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