Well here goes nothing
11-08-2012, 01:08 PM
#1
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Year: 96
Model: Cherokee
Well here goes nothing
Alright I'm big on the euro forums and know how the forums work, searches and such but I'm brand new here and to the 4x4 world.
I bought a 96 Cherokee 4.0L this past summer for a winter vehicle, it has about 285k and still has plenty of pep and running strong. In the past week she has had a weird problem with idling while in drive like coming to a stop light the idle will drop to where the engine just about dies and then comes up to idle around 125rpm dipping down extremely low like it is miss firing but I have no CEL. When in park it will idle normal for 5 minutes and then drop to around 250rpm and sound like its missing. Also I die if I'm turning into a parking space or around a corner and not giving it enough gas. With all of that being said what I've done to fix this problem is... New spark plugs, new injectors, new fuel filter (old one was clogged so bad!) I'm thinking about MAP sensor next or maybe doing even a compression test for leaky seals.
I'm just asking for imput from you guys and what to look for while doing this because I know nothing about the straight 6 4.0
Here is a pic for $800 and 285k she only has a the little rust on the drivers rocker and interior is good I'm happy
The Cars
I bought a 96 Cherokee 4.0L this past summer for a winter vehicle, it has about 285k and still has plenty of pep and running strong. In the past week she has had a weird problem with idling while in drive like coming to a stop light the idle will drop to where the engine just about dies and then comes up to idle around 125rpm dipping down extremely low like it is miss firing but I have no CEL. When in park it will idle normal for 5 minutes and then drop to around 250rpm and sound like its missing. Also I die if I'm turning into a parking space or around a corner and not giving it enough gas. With all of that being said what I've done to fix this problem is... New spark plugs, new injectors, new fuel filter (old one was clogged so bad!) I'm thinking about MAP sensor next or maybe doing even a compression test for leaky seals.
I'm just asking for imput from you guys and what to look for while doing this because I know nothing about the straight 6 4.0
Here is a pic for $800 and 285k she only has a the little rust on the drivers rocker and interior is good I'm happy
The Cars
11-08-2012, 01:23 PM
#2
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Model: Cherokee
Nice collection. All in black I see 
(or is the XJ green? I have a bit of colorblindness. Anyway- still nice in any color...)
I'd start by pulling the IAC (idle air control) valve out of the throttle body, cleaning it and reinstalling. Might just be sticking a bit.
TPS (throttle position sensor) might also be suspect. There is a procedure to test it with a DVM floating around here.
(or is the XJ green? I have a bit of colorblindness. Anyway- still nice in any color...) I'd start by pulling the IAC (idle air control) valve out of the throttle body, cleaning it and reinstalling. Might just be sticking a bit.
TPS (throttle position sensor) might also be suspect. There is a procedure to test it with a DVM floating around here.
11-08-2012, 01:23 PM
#3
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Year: 1992 Cherokee Sport
Engine: Bone-Stock 242
Throttle position sensor is where i would start, could be an O2 sensor as well. The 4.0 is the best engine XJ's came with, despite their constant ticks and knocks(So don't worry if it has a faint knock).
Anyways, Welcome to Hell (AKA Jeep owners club) and CF! And nice Audi's!
Anyways, Welcome to Hell (AKA Jeep owners club) and CF! And nice Audi's!
11-08-2012, 01:36 PM
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Year: 96
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Nice collection. All in black I see (or is the XJ green? I have a bit of colorblindness. Anyway- still nice in any color...)
I'd start by pulling the IAC (idle air control) valve out of the throttle body, cleaning it and reinstalling. Might just be sticking a bit.
TPS (throttle position sensor) might also be suspect. There is a procedure to test it with a DVM floating around here.
(or is the XJ green? I have a bit of colorblindness. Anyway- still nice in any color...) I'd start by pulling the IAC (idle air control) valve out of the throttle body, cleaning it and reinstalling. Might just be sticking a bit.
TPS (throttle position sensor) might also be suspect. There is a procedure to test it with a DVM floating around here.
11-08-2012, 01:38 PM
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Year: 96
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Throttle position sensor is where i would start, could be an O2 sensor as well. The 4.0 is the best engine XJ's came with, despite their constant ticks and knocks(So don't worry if it has a faint knock).
Anyways, Welcome to Hell (AKA Jeep owners club) and CF! And nice Audi's!
Anyways, Welcome to Hell (AKA Jeep owners club) and CF! And nice Audi's!
Haha how come every forum welcomes the new members to hell (audizine is the same way)
