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Jeep Cherokee Start Stall Idle Problems

275 messages,  Last post on May 11, 2013 at 8:28 AM

You are in the Jeep Cherokee and Jeep Grand Cherokee Forum.

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

Messages Page 24 of 29

#223 of 275 Re: 1996 Jeep Grand Cherokee starting problems... [acampane] by mmm12

Feb 15, 2011 (5:47 pm)

Replying to: acampane (Feb 14, 2011 3:10 pm)
No luck. Very frustrating. The vehicle gave me 11 years, with only an a/c problem - until now... I hope I could fix it..
Today we changed the idle control valve and cleaned the fuel injectors. Yesterday tested the solenoil by removing it to see how the car would run, it seemed fine. We removed the map sensor and things sounded worst so we put it back. Not sure if I should replace it and the o2 now. Just putting money in...
Now, while it's on park and I put it on drive or reverse, the rpm starts working up and the engine starts making a funny noise - like low power.
It seems to happen right after the engine warms up.
I would appreciate any help..thanks

#224 of 275 Re: 1996 Jeep Grand Cherokee starting problems... [mmm12] by timdooling

Feb 15, 2011 (6:57 pm)

Replying to: mmm12 (Feb 15, 2011 5:47 pm)
This may seem like a low tech solution to a seemingly high tech problem, but try securely grounding the engine block to the vehicle frame.
 
I had a stalling problem with my Jeep and I couldn't get it to drive 5 minutes. I figured it was an open connection and grounded the engine block, and the vehicle worked at least long enough to get me to the repair shop where it turned out to be the piston 1 sensor.
 
It appears, and this is just pure speculation, that a charge builds up on the engine block if the ground is not perfect, and eventually the high voltage and the engine block are at the same voltage. When this happens, nothing will seem to work right. Your Jeep uses a conventional ignition system, and this system will fail when the engine block becomes charged someone near the voltage differential in the battery. No tech will ever check for this, and even the process of checking for it may discharge the block sufficiently that the problem will disappear for a few minutes (like until you get into heavy traffic five blocks away).
 
I would suggest trying this before spending the next kazillion dollars chasing a problem you may never find.
 
It appears you have already hit the usual suspects.

#225 of 275 Re: 1998 Jeep Grand Cherokee starting problems... [timdooling] by mmm12

Feb 16, 2011 (7:17 pm)

Replying to: timdooling (Feb 15, 2011 6:57 pm)
I Appreciate your help. I know, it adds up.
I'm going to look into this tomorrow. I agree, it seems to be something simple..
Today someone told me that the engine timing might be off.
Thanks again.

#226 of 275 Re: 1998 Jeep Grand Cherokee starting problems... [mmm12] by timdooling

Feb 16, 2011 (8:15 pm)

Replying to: mmm12 (Feb 16, 2011 7:17 pm)
Let me know how it turns out.
 
I got the sensor problem solved right away, but there are still other ISMs on my Jeep that suggest a bad engine ground.
 
I may permanently hardwire a shunt to the frame.

#227 of 275 Re: 1998 Jeep Grand Cherokee starting problems... [timdooling] by mmm12

Mar 20, 2011 (9:58 pm)

Replying to: timdooling (Feb 15, 2011 6:57 pm)
Finally!!! It's running...knock on wood.. It was the Crankshaft Position Sensor.. I believe it was not positioned correctly the first time. I had someone else redo it and bingo.. it stalled a little in the beginning then stopped. he said the car needed to recalibrate itself because of all the parts that I changed and now it runs great...
It's burning a lot of gas now, I'm averaging $20/day.
I believe the problem might be that it's reving too high. The neighbours could hear my car running when it's warming up in the morning.
I have to look into that now...
Thanks for all your help..

#228 of 275 GJ Laredo Issue by utahgrad

Mar 24, 2011 (12:24 pm)

I have a 2002 Grand Cherokee Laredo, six cylinder. Just recently I've had the following issues. I noticed yesterday that when I went to start the car, it seemed as if the battery was dead. You could hear clicking. After a minute or so, this went away and the car would crant, just not start. I eventually pumped the throttle and it started rough...stall, repeat. After a few minutes, it stayed running, but only tacking about 400rpm. You could tell it just wanted to stall. Traffic lights, same thing. When you are traveling, there doesn't seem to be any issues. Any thoughts?
I can tell you that I replaced the clock spring about three weeks ago along with the turn signal handle/headlights arm that attaches to the steering column. Not sure this is related.

#231 of 275 1990 jeep laredo idles high in park after warms up by joeogio

May 01, 2011 (9:09 pm)

just replaced my water pump yesterday and now my jeep idles high after it warms up especially in park and sometimes idles low in drive any ideas what is causing this i havent had this problem before... note: when replacing my water pump i had to take the air box out and im pretty sure i got all of the vac hoses put back on and the big duct like hose that feeds into the air box has a tear in it and has since i owned it but never afected anything from what i can tell

#232 of 275 98 jeep struggles starting by stretch166

Jul 21, 2011 (9:29 am)

i noticed over the weekend that my jeep has struggling starting. i think it may be the starter. it takes a few seconds to turnover. i'm having it checked out tomorrow but i'm thinking it could be the starter or the alternator. thoughts? i'm trying to let this truck survive until jan or feb of 2012. i've had it since 2000.

Messages Page 24 of 29

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