Last post on Dec 05, 2013 at 4:05 PM
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Jeep Grand Cherokee
#564 of 1240 Intermittent Starting Issue
Sep 17, 2009 (11:58 am)
I am having trouble with my 1993 Grand Cherokee Laredo (Automatic 4.0 with 6 plugs). I purchased this vehicle out of a barn where it had been sitting for a couple of years. I was having trouble starting. I.E. would crank for up to three minutes before it would start. I have since replaced the cap and spark plug wires, spark plugs, the crank sensor on the fly wheel. (Boy was that a treat and thank god for having a mechanic for a neighbor and friend helping me!) After not being able to get it to start for a week straight, I was sitting inside the jeep thinking my next steps. I noticed the computer display panel by the Automatic shifter wsn't set. I set the the time and date, then said what the heck "I'll give it a try." The car started after hearing clicking noises from the relays. I have since then noticed that when I turn the key in the ignition, my jeep does its normal bulb checks and starts fine. Yet if the CHECK ENGINE light does not appear when it does the bulb check in the display panel, it will not start. When this light does not turn on, I do not get fuel pressure or spark to the plug.
#565 of 1240 Random engine shutdowns while driving
Sep 19, 2009 (7:25 am)
I have been experiencing the dreaded "engine randomly shuts off while driving" problem that seems to plague a lot of Jeep owners with high mileage. However, I'm not getting any codes that would indicate any problems(Just code 12) No check engine light... Nothing.
I just took it for another test drive, and it stalled again about 4 miles up the road, however, instead of immediately pulling over, I decided to put my foot in the pedal, and the engine fired right back up and I went on driving.
Before when it stalled out, I just pulled right over in fear that if I did anything else I could possibly damage something, but this time I just gave her some gas, and like a light switch it fired right back up.
I feel like I'm chasing a gremlin. Replaced fuel filter/Dist cap & rotor/Plugs & wires... etc
Throttle position sensor? Crank position sensor? MAP sensor?
Any advice would be greatly appreciated.
#566 of 1240 Re: Random engine shutdowns while driving [veddy]
Sep 21, 2009 (12:16 pm)
I had the same problem, after alont of time and money, i figured out what the problem was, the crankshaft postition sensor. Now, this was the very first this I did, and it did not resolve the issue, becuase the crk sensor in on the driverside of the bell housing on top, a few years ago i had a tranny job done, they put in a 1997 tranny in, my car is a 96 so beware what parts your working with.
#567 of 1240 Re: Operating Temp Stall...Advice please [tuggajb]
Sep 23, 2009 (5:20 pm)
Just wanted to update my orig. post. So my Jeep finally threw me a bone and the Check Engine light finally came on (prob be the only time I'm happy to see that light...lol) So I checked it and its reading Code 21 (Problem with O2 sensor). I'm going to check the wires and more than likely replace the sensor this weekend. Crossing my fingers and hoping this is the reason for the failed emissions. Keep ya'll up to date after I fix it.
#568 of 1240 Idle is now bad after installing new CKS
Sep 25, 2009 (8:14 am)
I installed a new Crank position sensor now my jeep idles like crap. Sounds like it is missing really bad. Like a bad plug or just misfiring. I doubt its a plug or anything else besides the CKS because it idled just fine with the old one but was stalling while driving.
#569 of 1240 95 Jeep Grand Cherokee Cranks but wont Start
Sep 26, 2009 (5:53 pm)
Ok I have a 95 jeep cherokee I just put a new motor in. the motor was from a 89 jeep cherokee, the intakes wasn't the same so I change the one of the old motor to the new one. The problem is it will crank but it wont start, but there's a trick it act like it wants to start when you first crank it, but after that it just cranks, but when I pull the fuel pump relay out and try to start it, it cranks a couple of times and then starts up and runs for about 20 to 50sec and runs really really rough, and then dies. Please some one help.
#570 of 1240 Re: my 2001 jeep grand cherokee [valelf]
Sep 27, 2009 (3:37 pm)
the problem is a crank sensor located on driver's side near the top of the transmission i know this cause i was having same problem i took it to the dealer to have it fixed cost was 299.00 but was worth it cause there were a bunch of re-call that needed to be fixed on my jeep good luck..
#571 of 1240 Gauges bouncing everywhere!!
Oct 06, 2009 (3:44 pm)
I have a 2000 (4.7) JGC limited. Intermitantly all gauges would bounce everywhere when trying to start it. If I would press the brake, all gauges would return to normal, and the vehicle would start. Never had an issue while driving. Now the battery is being drained, and sometimes the gauges would bounce even after the vehicle is shut off. I can jump it, but it will be drained the next time I jump in. I've read someone suggesting an ignition switch. Has anyone had this problem or have any idea what I can try? Thank you for any info!
#572 of 1240 Re: Gauges bouncing everywhere!! [dakotajeep]
Oct 07, 2009 (3:19 pm)
how old is the battery? could have bad cell in it
#573 of 1240 Re: Gauges bouncing everywhere!! [dakotajeep]
Oct 07, 2009 (4:32 pm)
As ironic as it sounds, I had an issue with my 2000 JGC, which was a bad battery. My Jeep started popping off a P1474 error, yet there wasn't a problem with the exhaust that could be found.
Then my battery started to have problems on Saturday. Slow cranking, then would turn over. Got worse and worse over Sunday and Monday. Went back to Walmart, who diagnosed a bad cell in the battery, and replaced it no charge (I purchased it there, about 1 yr ago).
You might want to have the battery and cables checked.