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Old 02-23-2007, 08:21 PM   #1
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Well, This is definatel off-topic that'* for sure, my friend has this car, it'* a '95 Chrysler Intrepid 3.5 DOHC. He is having a over-reving problem like 1800-2000 RPM all the time, we replaced the timing belt, timing belt tensionor, water pump, all gaskets, timed it properly. but it always over-revs. The computer has been reset, I don't know if this is a sensor or what? Anybody anything? thanks for the help guys!
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Old 02-23-2007, 08:35 PM   #2
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The lower intake manifold gaskets probably. Try checking them for leaks. A little carb cleaner sprayed in the area usually does the trick...if your idle changes after you spray, you know you've got a leak.

Nice motor by the way
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Old 02-23-2007, 08:38 PM   #3
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Quote:
we replaced the timing belt
belt or chain ?? i know the 2.7 is 3 chains are you sure when you did the timing you made sure to mark everything?

and is the 3.5 like the 2.7 a tolerance yeah sorry talkin out my a$$ the 2.7 is a interference

Oh and BTW the 2.7 that i have has almost 220,000 kms on it
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Old 02-23-2007, 08:44 PM   #4
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The 3.5 is belt driven and his '95 is a non-interference motor.
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Old 02-23-2007, 08:49 PM   #5
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The first place I would look is in the throttle linkage; is the throttle closing all the way? (I just went thru this on my Sable starting at 1500 and ending up at 3000 by the time I got home) As you work the throttle from under the hood (engine off) let it snap back; if you don't hear a metal on metal tap from the setscrew hitting the stop odds are your TB isn't able to close all the way.

Next up is testing the Idle Air Controller. Try taking it off and cleaning the insides with carb cleaner. Ohm out the ectrical portion of the IAC but I don't know what the spec is for that. I would recommend cleaning the throttle body while you're under the hood and lubricating the throttle linkage. The IAC was my problem.

Next I would check for vacuum leaks as suggested.

BTW - Has he had this in for the recalls? Injector O-rings and control arm bracing iirc. Mine was totalled on Christmas eve '05
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Old 02-24-2007, 04:07 AM   #6
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well now we have an idea of where to start looking, as I know NOTHING about chryslers. but were pointed in some directions now, we'll see what happens. thanks alot guys
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