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Forum: General Q & A

03-07-2016, 07:26 PM

Replies: 23

502 MAG Idle Problem

Views: 11,124

Posted By No Coast

Swap computer from good running engine see if...

Swap computer from good running engine see if problem transfers.

Forum: General Q & A

03-06-2016, 05:53 PM

Replies: 23

502 MAG Idle Problem

Views: 11,124

Posted By No Coast

Pull the upper plenum, there are 4 square gaskets...

Pull the upper plenum, there are 4 square gaskets around each runner for the lower intake. If those are broken they cause a vacuum leak and high idle when all else is good. If the screws are loose,...

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