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Discussion Starter #1
Hi Fellas , I have searched on here and else where but I cannot get a good answer. Ever talked to counter jockeys at auto parts stores. What I have is this, upon a cold start the engine will rev up to 2500 to 2800 RPMS then settle down to 750 or so. On a warm start it will go to 2000 or so. I have changed the air temp sensor, ceaned the "throttle body" done a hard reset and do the gas peddle thing. I have no air or vacuum leaks. Any ideas ???
 

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The PCM controls idle rpm through the idle air control valve, aka idle air controller. Common problem and lots of videos.
 

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Discussion Starter #3
Its a 2004 RAM 1500 4x4 with the HEMI. Please correct me if I'm wrong ,but I thought that it did not have a IAC. If it does please tell me where it is. any help is much appreciated.
 
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