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98 jeep grand cherokee laredo

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Old Jan 21, 2012 | 10:05 PM
  #1  
XxRoll4LifexX's Avatar
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From: Vancouver wa
Year: 1990
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Default 98 jeep grand cherokee laredo

"sorry it is a 94 not a 98"

so the girlfriend just bought this jeep , the problem is when she starts it up cold it will die, or putter and die..it has also died while idling i have been looking it up and i am thinking it is either the pcm connection or maybe fuel ejector? i could be way off but i took this video of the codes that popped up by doing the key trick. does anyone know what these codes represent?


Last edited by XxRoll4LifexX; Jan 22, 2012 at 11:57 AM.
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Old Jan 21, 2012 | 10:26 PM
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From: Everett, WA
Year: 1996
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that doesnt look like a 98 by looking at the vid

could be the CPS or TPS
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Old Jan 21, 2012 | 11:21 PM
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From: Mt. Iron, MN
Year: 96 Limited ZJ
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It not a 98 Grand Cherokee. Might be a 98 Cherokee. I agree on either the TPS or CPS.
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Old Jan 22, 2012 | 12:30 AM
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From: Everett, WA
Year: 1996
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Originally Posted by country_boy454
It not a 98 Grand Cherokee. Might be a 98 Cherokee. I agree on either the TPS or CPS.
even 97+ XJ's have digital odometers
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Old Jan 22, 2012 | 01:00 AM
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From: Clutier IA, where the jeep lays in wait, Pensacola, Florida, where im stationed.
Year: 1994
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Its deff. a ZJ i have a 94 with the exact same odometer and guage cluster? But anyways my 94 did the exact same thing after i got it started for the first time. Tps was making bad connection so i put some di-electric grease on it and it ran for like 10 seconds instead of 5 secs. Next i found the breather hoses coming from my head were clogged up so i replaced both breathers and well-ahh it ran like a top. Hope that helps
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Old Jan 22, 2012 | 11:57 AM
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ya sorry it is a 94, i have been working between my 98 jetta a 97 jetta and this jeep.. guess i didn't pay very much attention when i posted this sorry... but the problem stays the same and i am trying to figure this all out, where is the pcm located?
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Old Jan 22, 2012 | 11:59 AM
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Originally Posted by FMXFreak
Its deff. a ZJ i have a 94 with the exact same odometer and guage cluster? But anyways my 94 did the exact same thing after i got it started for the first time. Tps was making bad connection so i put some di-electric grease on it and it ran for like 10 seconds instead of 5 secs. Next i found the breather hoses coming from my head were clogged up so i replaced both breathers and well-ahh it ran like a top. Hope that helps
which are the breather hoses?
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Old Jan 22, 2012 | 12:42 PM
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Year: 2004
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Originally Posted by XxRoll4LifexX
which are the breather hoses?
Welcome to CF.
On the 4.0L they're on the valve cover. It's called the CCV system.
On the V8 it's on the passenger side valve cover, and has the pcv valve in it.
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Old Jan 23, 2012 | 09:35 AM
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From: Clutier IA, where the jeep lays in wait, Pensacola, Florida, where im stationed.
Year: 1994
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Originally Posted by ol"blue
Welcome to CF.
On the 4.0L they're on the valve cover. It's called the CCV system.
On the V8 it's on the passenger side valve cover, and has the pcv valve in it.
^this guy knows more then me but yeah thats it. Sorry i forget that not all ZJ's have the 4.0 like me.
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Old Jan 23, 2012 | 09:32 PM
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From: Vancouver wa
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i am a total noob, would you happen to have pictures? also what would i be looking for if i take them off? today it died while idling but starts back up just fine
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Old Jan 24, 2012 | 09:04 AM
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This will tell/show you about the CCV system: > http://www.autozone.com/autozone/rep...00c1528008abb2
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Old Jan 24, 2012 | 12:02 PM
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Originally Posted by ol"blue
This will tell/show you about the CCV system: > http://www.autozone.com/autozone/rep...00c1528008abb2

ya my engine looks nothing like this one.. its a 94 jeep Cherokee lerado not a wrangler...

Last edited by XxRoll4LifexX; Jan 24, 2012 at 02:29 PM.
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Old Jan 24, 2012 | 04:24 PM
  #13  
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From: Clutier IA, where the jeep lays in wait, Pensacola, Florida, where im stationed.
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Engine: 4.0L
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Do you have the V8 or the I6?
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Old Jan 25, 2012 | 10:49 AM
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Originally Posted by XxRoll4LifexX
ya my engine looks nothing like this one.. its a 94 jeep Cherokee lerado not a wrangler...
Scroll down, it shows the 4.0L. The idea was to show you the lines on top of the valve cover. Yours might be routed to different locations, but you get the point.
It gets fresh, filtered air from the line at the front. The air is then mixed with any fumes/blow-by that have been drawn up through the engines passages into the valve cover, and is pulled out through the rear line, which is connected to manifold vacuum.
If the lines are plugged/disconnected, or the inside of the valve cover becomes clogged with sludge, this will prevent the system from operating as designed. As a test, you can remove the hose from the front fitting to verify suction at the fitting. If no suction is present, remove rear hose and test for vacuum from the hose. In no vacuum there, trace hose and test until fault is found.
If no vacuum is found at the front, but vacuum is present at the rear, sludge build-up inside valve cover is indicated. Remove and clean.
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Old Jan 26, 2012 | 03:07 AM
  #15  
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so yesterday i took the jeep up to mt hood, it drove perfect, only time it ever acted up was idling at a red light... no issues other then when it idled, this is about a 1 1/2 to 2hr drive depending on traffic got there got rained out turned on the jeep and drove home. so why would it only do it while in idle?
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