Sep 21, 2015, 03:49 PM
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XJ Ask the Question Thread
Junior Member
Joined: Mar 2013
Posts: 42
Likes: 0
Model: Cherokee
my cherokee will start and run fine till it gets up to operating temperature then it doesn't want to idle if will putter below 500 then die out, there is also a little surging in the low rpm range up till about 1200. i have replaced the iac, tps, fuel injectors, battery, plug wires and distributor cap and button, fuel filter, any ideas what could be causing my problem?
ive also tried cleaning out the throttle body
ive also tried cleaning out the throttle body
my '93 Cherokee country would idle fine for about thirty minutes. then shut off, as if by a switch... diagnostic check found MAP(manifold absolute pressure) sensor bad. changed it, stalling went away.. running swell ever since . this sensor mounts on the firewall IFO driver.. it has a vacuum line to the manifold.... I got the ac/Delco sensor at $55.00.... 100,000 mile part.. worth it !!
Junior Member
Joined: Mar 2013
Posts: 42
Likes: 0
Model: Cherokee
[QUOTE=Rain;2880891]my '93 Cherokee country would idle fine for about thirty minutes. then shut off, as if by a switch... diagnostic check found MAP(manifold absolute pressure) sensor bad. changed it, stalling went away.. running swell ever since . this sensor mounts on the firewall IFO driver.. it has a vacuum line to the manifold.... I got the ac/Delco sensor at $55.00.... ...............................................100 ,000 mile part.. worth it !!
Senior Member
Joined: Feb 2014
Posts: 854
Likes: 1
From: Minnesota
Year: 1996
Model: Cherokee
Engine: 4.0
Ok, not sure if this is an obvious question, but here goes anyways. Why do the different model year grand cherokees have different codes- i.e. WJ, ZJ, WK- but the 2 cherokee models have the same code? Kinda been thinking about that the past couple days lol
Senior Member
Joined: Apr 2012
Posts: 638
Likes: 0
From: Huntsville, Tn
Year: Different Years (I have several XJ's)
Model: Cherokee
Engine: 4.0 HO
This stupid AC! It's so cold and blows so hard. It's the best AC ever. BUT.... When I'm giving it gas and accelerating it sucks up into the dash and won't blow. When I let off the gas it starts blowing again! Anyone know a fix for this? Grrrrr.
CF Veteran
Joined: Sep 2010
Posts: 12,692
Likes: 6
From: Mercer County, NJ
Year: 2001
Model: Cherokee
Engine: 4.0L I6 HO
You sir have a vacuum issue. Possibly a leak IIrC
sorry
Senior Member
Joined: Apr 2012
Posts: 638
Likes: 0
From: Huntsville, Tn
Year: Different Years (I have several XJ's)
Model: Cherokee
Engine: 4.0 HO
Herp Derp Jerp
Joined: Nov 2011
Posts: 18,251
Likes: 17
From: Parham, ON
Year: 1999
Model: Cherokee
Engine: 4.0L OBD-II
Vacuum line comes from the intake manifold, runs along behind the engine, along firewall and right fender, will have a T at the cruise control (if cruise is present it should be hooked up) and run to the reservoir "Jeep Egg" in the bumper.
Herp Derp Jerp
Joined: Nov 2011
Posts: 18,251
Likes: 17
From: Parham, ON
Year: 1999
Model: Cherokee
Engine: 4.0L OBD-II
Define "working properly". Not clogged? Check temp for "in" and "out" hoses. Not leaking? Look for leaks.
These things don't have oil coolers.
You appear to be fishing for answers to problem you don't know how to explain. What's wrong with your Jeep?
These things don't have oil coolers.
You appear to be fishing for answers to problem you don't know how to explain. What's wrong with your Jeep?