Question about 2002 Cadillac Deville

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It idles pretty bad when car is in a complete

My cadillac dts idles pretty bad when car is at complete start > what can be the cause of this ?

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Check the hose coming from the air intake manifold going to the throttle body its called a plenum hose it may have a leak

Posted on Aug 06, 2009

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Idle air control is bad or dirty or throttle body needs to be cleaned.

Posted on Jul 25, 2009

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Your ***.

Posted on Sep 20, 2009

  • astra12303 Sep 20, 2009

    your cadillac sounds like its angry with you. like its growling at you as if it were a huge hungry hairy merry larry grizzzzly bear.

    you should feed it your girlfriend,that might curve its hunger.

    awwwww, glad i could help boss.

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Posted on Jan 02, 2017

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The answer is still pretty much the same as your other posting of this question.

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You MUST determine ("Due to Check Eng. Light") What the Code / Codes are stored in Computer , as they May Lead us DIRECTLY to the Problem.
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side, and In the EGR Valve side of things it causes VACUUM LEAKS @ EGR Valve, This Requires physically Removal of and the Cleaning of these parts by hand. Also the IAC> Idle Air Control Solinoid Can Cause this too Or a Mix of All 3, BUT >>>>>>>>>>>>>>
First thing is I need to know Why Check Engine Light is on that is Determine What Codes Exist On Compter P L E A S E RESPOND BACK TO ME WITH This Information and we can go on from here. I Truely Hope I Can Be of Good Help to you. Waiting for Your RESPONSE.

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