This is topic My idle gets stuck and backfires upon shutoff. in forum Tech Talk at Northern California Ford Owners .
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Posted by 1993 GT (Member # 3104) on
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Evey so often my cars idle gets stuck between 2000-2500RPM's and the only way for it to come back down is if I shut the car off, then before the car shuts off it shakes and gives this loud ass backfire. Could it be something to do with the fuel?
Posted by 89 stang gt (Member # 1877) on
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you need a new are by pass valve e9az-9f715-ba and your car wont idle up to 2000-2500rpm this part cost $60 i had the same thing happen to my 89 gt and i got the valve and it didnt idle up anymore
Posted by Black94 5.0 (Member # 655) on
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Could be a number of problems...I'd check the timming first...
Posted by 1993 GT (Member # 3104) on
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Can I disconnect the Air Bypass valve temporarely to see if thats the prblem? Ive had the car for 5 months and it recently started doing this. The backfire sounds as loud as a shotgun.
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