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Running high rpms - Rendezvous Buick Cars & Trucks

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There are a lot of reasons this could be happening - vacuum leaks to bad hoses to issues with the throttle body (This connects to your intake manifold) to issues with the computer or faulty fuses. It really is hard to diagnose.

Here is a website that will help you troubleshoot the issue depending on the characteristics of the idle.

http://autorepair.about.com/od/enginetroubleshootin1/a/TS_idle-speed.htm

Also, if you have modified anything, you may need to tune the voltage. For instance, if you got a new throttle body - you want to loosen the bolts where it connects and turn it until your meter reading would read with the specs of your car.

Posted on Jul 21, 2013

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Posted on Jan 02, 2017

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