Question about 2001 Pontiac Grand Am SE

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Idle adjust is there a idle adjustment 2.4 on the motor missing idle ruff thanks

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No, the idle is controlled bu the throttle position sensor, and I suspect that yours is having a problem. The idle is controlled by the ECU, and is not adjustable manually,.

Posted on Mar 19, 2014

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Posted on Jan 02, 2017

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SOURCE: 1995 pontiac firebird formula v8 idle

The idle speed is not adjustable, it is computer (PCM) controlled, you can turn the screw for the hard stop, but the computer will just over ride that adjustment for the most part, what I think you may need to do is clean the throttle valve and the idle speed control air bypass valve, use carb spray, spray it in the intake with the engine running use the at least 1/2 the can, the engine will try to stall, keep it running, after you are done disconnect the battery for 10 minutes, reconnect and drive a few days so the computer (PCM) can relearn your driving habits and set the idle correctly based on your driving.

Posted on Oct 16, 2008

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http://technoanswers.blogspot.com/2012/01/bad-miss-at-idle.html

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This will help.

Thanks.

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1 Answer

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1 Answer

RUFF RUNNING CAR/ IDLES RUFF


use carb cleaner spray on the inside of the throttle body.

use super unlead only to prevent buidup.

cold engine only.

hope this helps
thank you
jm

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1 Answer

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sounds like u have a vacum leak spray vacum hoses with carb cleaner and when motor revs up thats the hose with the leak fix hose and see what hapens

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