Question about 1996 Jeep Grand Cherokee

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Still have some what of idle problem 95 cirrus 2.5

I replace the egr, iac motor temp sensor. stiil have idle problem. help james

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  • Rabindra Robinson May 11, 2010

    does it idle high or too low please respond

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If it won't idle at all or even if it idles too fast sometimes check all the vacuum lines for leaks or one being unplugged
God Bless Greg

Posted on Dec 01, 2008

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1 Answer

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Do you mean it revs too high, or dies? Check EGR as most common issue, then IAC motor, coolant temp sensor, O2 sensor, tune up items.

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1 Answer

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Zab, First things first, check for any vacuum leaks, hoses that are disconnected, cracked or just plain worn out. Also check for vacuum leaks around the throttle body.
It really sounds like you have an EGR valve that is stuck open ever so slightly. The MAP sensor is a result of a low manifold vacuum. The IAC (idle air control) motor is trying to compesate and keep the engine running resulting in the high idle speed. I would remove the EGR valve and clean it gently with a brush and pick to remove any carbon build up.
Let me know, regards.

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