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Jeep Cherokee Start Stall Idle Problems

183 messages,  Last post on Dec 04, 2009 at 3:19 PM

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What is this discussion about? Jeep Cherokee, Transmission, SUV

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#107 of 183 Re: 97 JGCL Steering Issue [ehbuddy] by anaconda25 Apr 13, 2008 (4:16 pm)
Replying to: ehbuddy (Mar 13, 2008 2:36 pm) hey had the same problem on a 99. it ended up being a ecu problem. changed ecu and it works fine now..
#109 of 183 Dealer can't diagnose problem - Grand Cherokee Laredo v6 '04 by sondra3 Apr 14, 2008 (5:10 am)
My 2004 Jeep Grand Cherokee Laredo v6 has been in and out of the shop (dealer) for over a month with the same problem. Each time I bring it in they diagnose/fix something else and it comes back with the problem developing again. They are stumped - and I'm not sure what to do. The car has 85,000 miles. I don't have the "codes" I keep reading about here (I'm not a car techie), but here is the history, any help is appreciated.   Symptoms: at around 65 mph (or 2000 rpm) I feel the car hesitate a little, and the rpm needle moves a bit weird. Over time (and multiple service visits) this started happening at lower and lower speeds (like 40 or 45, eventually). One time i was on the highway and it hesitated so much it stopped running (check engine light appeared), and I had it towed to the dealer (they paid the towing).   Here are the things the dealer tested, diagnosed and replaced, over this time (in chronological order): 1. Engine misfire - replace spark plugs and 02 sensor 2. Fuel induction cleanup service - cleaned fuel rail, injectors, intake system & throttle body 3. Found a short in the ignition coil - replaced coil, and fuel filter 4. Replaced throttle position sensor 5. Replaced PC module (main computer for engine)   Here is some older regular service history too (in case it's helpful at all to know): Ignition tune-up, replaced brakes, add coolants, replace shocks, replace transmission fluid & filter, replace front pinion seal and flush brake fluids.   Anyway the car is still hesitating at around 60 mph. Although it seems less severe and less frequent I'm scared to keep driving it and I don't know what to do. The dealer once even sent the car to an independent mechanic (he's the one who replaced the PC module) and hasn't been charging me any more for service.   Help!? Replies to this message: tuggajb (Apr 14, 2008 4:41 pm) sondra3 (Apr 14, 2008 5:15 pm) tuggajb (Apr 16, 2008 5:03 pm)
#110 of 183 Re: Dealer can't diagnose problem - Grand Cherokee Laredo v6 '04 [sondra3] by tuggajb Apr 14, 2008 (4:41 pm)
Replying to: sondra3 (Apr 14, 2008 5:10 am) the first thing i would have done is change the battery have they done that? Replies to this message: sondra3 (Apr 14, 2008 5:15 pm) tuggajb (Apr 16, 2008 5:03 pm)
#111 of 183 Re: Dealer can't diagnose problem - Grand Cherokee Laredo v6 '04 [tuggajb] by sondra3 Apr 14, 2008 (5:15 pm)
Replying to: tuggajb (Apr 14, 2008 4:41 pm) Hi, no, the battery was never mentioned. Could you explain why you would have done so? Thanks Replies to this message: tuggajb (Apr 16, 2008 5:03 pm)
#112 of 183 Re: Dealer can't diagnose problem - Grand Cherokee Laredo v6 '04 [sondra3] by tuggajb Apr 16, 2008 (5:03 pm)
Replying to: sondra3 (Apr 14, 2008 5:15 pm) jeeps are realy touchey on batt volts if have batt that is going bad alt puts out voltage that flucuates a lot and computers realy don't like that
#114 of 183 2000 Cherokee Rough Idle by volvoid Apr 17, 2008 (5:42 am)
I have a 2000 Cherokee w 69k miles; bought it at 62k, had complete 60k comprehensive service done, but still has somewhat rough idle in drive w brake on, worse under AC load. Neither dealer nor independent mechanic can find/fix problem. Dealer installed new ECM, crankshaft position sensor, camshaft position sensor, and coil pack(claiming all were bad -- at least computer was under warantee); still idles roughs so dealer's last/only advice was a can of injector/throttle body cleaner - am running that through now, to no apparent effect. Anybody have any ideas? Replies to this message: volvoid (Apr 30, 2008 6:12 am) lunghd (Apr 30, 2008 1:44 pm) lunghd (Apr 30, 2008 1:47 pm) volvoid (May 01, 2008 9:40 am) lunghd (May 01, 2008 12:55 pm) and 2 more...
#115 of 183 occassional problem starting by vibeachboy Apr 18, 2008 (9:23 am)
I have a 2001 JGCL and every week or so, when I go to start the car it doesn't fire at all. I noticed on the dash a symbol of a key with a circle around it and a hash line thru it. I looked in the manual and it is the key sensor for the security system. So, I assume that it is like a kill switch and the car isn't getting the signal. Then later I'll go back to the car, usually 24hrs later and it will start. Unfortunately, this happens at very inconvenient times and I can never tell when it will occur. Any thoughts? Replies to this message: tuggajb (Apr 18, 2008 2:21 pm)
#116 of 183 Re: occassional problem starting [vibeachboy] by tuggajb Apr 18, 2008 (2:21 pm)
Replying to: vibeachboy (Apr 18, 2008 9:23 am) the key will light up when you first put the key in if it don,t light up then you get worried. the way it works is will let engine start and run for 1 2 min then shut it down then you cuss. if it turns over then you could have some wires loose the computer is on the left side behind the ac aculumater and water from that gets on the wires   disconect your battery find the wire harness and wiggle it around if you are profishient you can unplug and replug a couple times and that will clean the contaces prob soulved

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