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I'm confused please help!

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Old Dec 14, 2011 | 08:30 AM
  #1  
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From: Riverton, KS
Year: 1995
Model: Cherokee
Engine: 4.0 HO I6
Default I'm confused please help!

I have a 95 xj with the 4.0 in it. It has been randomly dying and finally remembered that you can turn the key on and off 3 times and it will give you a code. I did that and it gave me code 25 which is suppose to be for the idle air control valve. So i replaced it and now it's doing the same thing it was but more often. Is there a way to reset the computer that i need to try or did i get a bad part out of the box? Oh and yes i checked and it's still throwing the code after i changed the part. Please help!
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Old Dec 14, 2011 | 08:56 AM
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From: ct
Year: 1991
Model: Cherokee
Engine: 4.0
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Unplug the iac while its running if there's no change its not ur iac
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Old Dec 14, 2011 | 09:15 AM
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From: Oroville, CA
Year: 1995
Model: Grand Cherokee
Engine: 4.0 with all of the noise and clatter
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Does it stay running as long as you keep your foot on the gas, or is it crapping out even when your foot is on the gas? Does it happen when the engine is at operating temp, cold, or both?
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Old Dec 14, 2011 | 09:15 AM
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From: Riverton, KS
Year: 1995
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Not trying to be a smart*** but why would it throw that code if that's not it?
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Old Dec 14, 2011 | 09:18 AM
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From: Riverton, KS
Year: 1995
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It happens at any time. It happened this morning while driving down the highway at 70mph at operating temp. It has also happened sitting in mcdonald's drive thru. That's why i'm confused it's totally random and i can't seem to make it happen either.
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Old Dec 14, 2011 | 10:12 AM
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From: Riverton, KS
Year: 1995
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Ok guys looks like the guy at autozone red the code wrong when we did the on off thing it blinked 3 2 5 5. Now if i understand the blink test right the first two numbers are the code and 5 5 means end of test. If 3 2 is the code then i have an egr problem right? I don't have alot of money to blow on parts so any help would be greatly appreciated.
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Old Dec 14, 2011 | 10:20 AM
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From: Flint/Asheville
Year: 1995
Model: Cherokee
Engine: 4.0 HO
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The funny thing is that 95's dont have an EGR
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Old Dec 14, 2011 | 10:22 AM
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Awesome so what do i do?
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Old Dec 14, 2011 | 10:35 AM
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From: Flint/Asheville
Year: 1995
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Engine: 4.0 HO
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Sounds like the CPS on the bellhousing is bad, It can be tested with a volt-meter. The motor dying while hot is a symptom of it failing.
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Old Dec 14, 2011 | 10:39 AM
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From: Riverton, KS
Year: 1995
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Engine: 4.0 HO I6
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Ok i will check that. But i'm still confused by the code 32 popping up if it doesn't have and egr?
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Old Dec 14, 2011 | 11:14 AM
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From: Flint/Asheville
Year: 1995
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Engine: 4.0 HO
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OBD 1 codes are very general and some codes could be relevant to a different Chrysler vehicles. It basically just points you in some direction
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Old Dec 14, 2011 | 11:17 AM
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From: Riverton, KS
Year: 1995
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So i need to look at the crankshaft sensor in the bell housing?
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Old Dec 14, 2011 | 11:31 AM
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From: Flint/Asheville
Year: 1995
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Yea, They start failing when they get heat soak issues. Basically when it gets hot, the sensor starts acting up and it can/will randomly kill the engine on the highway or idling in the drive thru. You will be able to start the engine again but once you put a load on it (put it in D), the sensor will kill it.

Edit: Link to kinda describe a way to test it with a voltmeter.
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Old Dec 14, 2011 | 12:30 PM
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From: Oroville, CA
Year: 1995
Model: Grand Cherokee
Engine: 4.0 with all of the noise and clatter
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Originally Posted by TheJerm
Yea, They start failing when they get heat soak issues. Basically when it gets hot, the sensor starts acting up and it can/will randomly kill the engine on the highway or idling in the drive thru. You will be able to start the engine again but once you put a load on it (put it in D), the sensor will kill it.

Edit: Link to kinda describe a way to test it with a voltmeter.
Same goes for the cam sensor. Once they get warm they will start to do some funky stuff when they are bad.
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Old Dec 14, 2011 | 12:41 PM
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From: Riverton, KS
Year: 1995
Model: Cherokee
Engine: 4.0 HO I6
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Thanks guys i will check that tonight.
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