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Engine Won't Idle?

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,269 POSTS
I agree about the fuel line. If the battery is dead, I would start by removing it from the vehicle, recharging it, and haveing it load tested at a parts store. IF it fails the test, replace it.

Let me know what you find so we can move on. Also, let me know if the check engine light is on.

Joe
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Thursday, October 15th, 2020 AT 11:32 AM (Merged)
Tiny
G FOOTE
  • MEMBER
  • 2 POSTS
  • 1996 JEEP CHEROKEE
  • V8
  • 4WD
  • AUTOMATIC
  • 102,000 MILES
Engine runs fine at 1500 rpms and above, dies at idle. What could be the problem?
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Thursday, October 15th, 2020 AT 11:32 AM (Merged)
Tiny
LEGITIMATE007
  • MECHANIC
  • 5,121 POSTS
Could be several things, I would start with the idle air control valve then go to the tps(throttle position sensor). I think you may need to replace the IAC but try cleaning it first, and the throttlebody
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Thursday, October 15th, 2020 AT 11:32 AM (Merged)
Tiny
LEGITIMATE007
  • MECHANIC
  • 5,121 POSTS
https://www.2carpros.com/how_to/how_to_tune_up.htm
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Thursday, October 15th, 2020 AT 11:32 AM (Merged)
Tiny
SKULLIE28
  • MEMBER
  • 3 POSTS
  • 1996 JEEP CHEROKEE
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 177,000 MILES
When I stop it sometimes shakes then cuts off. It will then start back up but when you put it in gear it shuts off
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Thursday, October 15th, 2020 AT 11:32 AM (Merged)
Tiny
LEGITIMATE007
  • MECHANIC
  • 5,121 POSTS
Have the torque convertor checked, usually its the torque converter clutch solenoid, you may also want to check the idle air control valve first. But I suspect the other
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Thursday, October 15th, 2020 AT 11:32 AM (Merged)
Tiny
SKULLIE28
  • MEMBER
  • 3 POSTS
Thanks for the information. How do you check the torque converter and do you have to drop the transmission to fix it. Also do you know about how much it costs to fix this problem. And is there some kind of way I can put my car in gear without it cutting off. Until I am able to pay for this plus I can't drive it to the shop right now.
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Thursday, October 15th, 2020 AT 11:32 AM (Merged)
Tiny
LEGITIMATE007
  • MECHANIC
  • 5,121 POSTS
Yes, you have to drop the transmission, but the solenoid can be disconnected, and you will have poor fuel economy. But you should be able to drive it. Let me see if I can get a diagram to the convertor clutch solenoid
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Thursday, October 15th, 2020 AT 11:32 AM (Merged)
Tiny
LEGITIMATE007
  • MECHANIC
  • 5,121 POSTS
Im sorry skully this vehicle does not have a disconnect for the solenoid. So the best thing for us to do at this point is to gain access to a scan tool, autozone will rent them, for a deposit and you get your money back when you return it. Even a cheap one will give us a code, so we can be definite on this problem. Becuase at this point we have no room for possibilities. Keep me posted please
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Thursday, October 15th, 2020 AT 11:33 AM (Merged)
Tiny
SKULLIE28
  • MEMBER
  • 3 POSTS
Thanks so much for all of your help I will try to get to autozone and get a scan tool and let you know what code I get.
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Thursday, October 15th, 2020 AT 11:33 AM (Merged)
Tiny
LEGITIMATE007
  • MECHANIC
  • 5,121 POSTS
Your very welcome, keep me posted please, thanx
joe
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Thursday, October 15th, 2020 AT 11:33 AM (Merged)
Tiny
WALDO505
  • MEMBER
  • 1 POST
  • 1996 JEEP CHEROKEE
I have 1996 Jeep Grand Cherokee Ltd, V8 engine, 102,000+ miles which is stalling when comming to a stop or sometimes even in park Idle. Rpm just drops down as if turning the car off. Waht could cause this?
Thanks,
Walter
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Thursday, October 15th, 2020 AT 11:33 AM (Merged)
Tiny
AACPLUS
  • MEMBER
  • 60 POSTS
Check for dirty air filter, plugged fuel filter, air intake control motor, MAF, TPS sensors, EGR solenoid, in that order. Could be plugged EGR passages, injectors, or failing fuel pump. It should store a trouble code for some of these. That would narrow it down.
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Thursday, October 15th, 2020 AT 11:33 AM (Merged)
Tiny
1996SPORT
  • MEMBER
  • 1 POST
  • 1996 JEEP CHEROKEE
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 152,000 MILES
I start my jeep and after it has been running it wants to stall when in drive
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Thursday, October 15th, 2020 AT 11:33 AM (Merged)
Tiny
TGFISHEL
  • MEMBER
  • 52 POSTS
When was the last time you had a tune up ( if its been some time I would start with this ) also replace your fuel filter and check vacuum hoses. If that no help get your codes checked out you may have a sensor going bad.
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Thursday, October 15th, 2020 AT 11:33 AM (Merged)
Tiny
CKCDILLS
  • MEMBER
  • 2 POSTS
  • 1996 JEEP CHEROKEE
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 183,000 MILES
My 1996 Grand Cherokee began stalling at stoplights. Ran fine if RPMS were over 1200 or so. Changed plugs, wires, cap, rotor, air filter. This did not fix it. Had the fuel injectors serviced. Drive fine for a day then started stalling again. Changed the IAC (Idle Air Control) valve. Now it runs much better, but will still occasionally stall. It usually happens when I come to a stoplight. Then, when I shift from drive to park, the RPMS will drop down to where it almost stalls, but then goes back to idle. Changing the IAC valve really helped, but has not fixed the problem completely. Do you have any suggestions as what to look at next?

Thanks,
Chris-Sacramento
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Thursday, October 15th, 2020 AT 11:33 AM (Merged)
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Inspect and test the following throttle position sensor/PCV valve and EGR valve-
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Thursday, October 15th, 2020 AT 11:33 AM (Merged)
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
From: ckcdills
To: rasmataz
Posted: Fri Apr 18, 2008 11:53 am
Subject: 1996 Grand Cherokee Stalling

We also discovered by pulling off the vacuum hose running from the master cylinder to the intake while it was running that the engine immediately ran at a higher RPM. Also, the tailpipe has black soot. Could my stalling/idle problems be the result of a bad O2 sensor?

You need a scantool to view the fuel trimmings to determine its the oxygen sensor. Have you checked the EGR valve-
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Thursday, October 15th, 2020 AT 11:33 AM (Merged)
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
From: ckcdills
To: rasmataz
Posted: Fri Apr 18, 2008 12:20 pm
Subject: Cherokee Stalling
How do you check the EGR valve and where is it located?

Disregard the EGR valve just checked it no listing for your vehicle according to Mit1 . Com
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Thursday, October 15th, 2020 AT 11:33 AM (Merged)
Tiny
LAURENJ
  • MEMBER
  • 1 POST
Replace your MAP Sensor.

Had this same problem on a 96 Jeep Grand Cherokee and no one could tell me what it was for years. Ended up replacing my transmission a few months later. Jeep no longer stalls at stop signs.
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Thursday, October 15th, 2020 AT 11:33 AM (Merged)

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