09-03-2021, 11:34 PM
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CC Member
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Join Date: Jun 2020
Location: SoCal,
CA
Cobra Make, Engine: BDR build #983, FRM 392
Posts: 380
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Not Ranked
Oscillating idle when hot
On my Ford Racing Motor 392 CID that came with my BDR, I have this issue with an oscillating idle that occurs after the car sits for a short period of time after driving it for a lengthy period of time. I take the car for a long run, reaching operating temperature. Runs fine and idles smoothly at 8K - 9K RPM. Turn the car off and let it sit for a short period of time (10 minutes or more). Fire it back up and the idle speed is oscillating from about 9K to as low as 3K. If I don't feather the gas peddle, it will eventually stall. If I feather the gas peddle for a period of time while idling (say about 5 minutes), then the idle becomes more consistent and steady. Motor is the stock Ford Racing Motor circa 2010 that came with my BDR - with about 7K miles on it. Could this be something related to the PCV valve?
Last edited by SBSerpent; 09-03-2021 at 11:38 PM..
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