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Post Info TOPIC: Help me with my 95 monte carlo
Josh Eaton


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Date: Dec 6, 2010
Help me with my 95 monte carlo
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Help! I have a 1995 monte carlo z34. When its cold two cylinder miss and or loss compression. It runs really ruff. It revs up by its self over and over untill it worms up. It runs really rich too. but when it worms up it runs over all like new. Please some one help me?!

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PitchBlackSS


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Date: Dec 6, 2010
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any check engine light? any codes to report?

Are you sure you are getting a missfire? or loss of compression? or is this a guess?

Not sure on the older V6's, but the newer ones use a IAT Sensor (Intake Air Temperature) if the sensor is faulty it could be sending the wrong temps to the PCM, it will either increase fuel or decrease fuel depending on what it thinks its reading. Colder it gets, the more fuel it demands from the PCM. There could be your rich issue. This can also affect how it idles.

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Rich_S85SS


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Date: Dec 7, 2010
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Moved to more appropriate forum.

Welcome and good luck with your car. We have a lot of knowledgeable members here.

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1985 Monte Carlo SS
twomanymontes


Moderator - Monte Hunter Lead Investigator

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Date: Dec 7, 2010
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Yeah, see if you have any codes stored, that will give us a better idea of what to look for. But it sounds like maybe you have an intake gasket leaking. I assume it's the 3.4L DOHC motor being that its a 95 Z34. The gaskets are like rubber bands, they shrink in the cold, cause a vacuum leak, then swell when warm sealing the vacuum leak. It's really hard to diagnose things over the net, Best thing is to take it to a reputable shop and have it checked out.

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Josh Eaton


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Date: Dec 8, 2010
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No check engin light. No codes. yes im sure of both. someone told me this is a common problem with my car but no one can tell me how to fix it. me and my uncle have been top to buttom. we just dont know enough i guess.

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Josh Eaton


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Date: Dec 8, 2010
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oh and i tryed the IAT no chang

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Josh Eaton


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Posts: 5
Date: Dec 8, 2010
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I like that... thank u i will try that. would u mind telling me how to get to it and how hard it is please?

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