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Mike_Schriber's avatar
Mike_Schriber
Explorer
Aug 03, 2015

Unusual pinging issue (2005 Ford three valve V10)

I've been having a persistent and unusual pinging issue that just got worse on a recent trip. Typically, it would ping totally at random at or near full throttle, usually when going up a big hill. ...
Chum_lee's avatar
Chum_lee
Explorer
Sep 14, 2015
Hummmmm. Intermittent pinging, no fault codes, good gasoline (87 min). Is the pinging, when it occurs, regular, as in happening in the same cylinder, or is it all over the place with no particular pattern? If it's irregular I'd guess some sort of vacuum leak in the intake tract or EGR system. If its regular, as in the same cylinder, I'd go with MEXICOWANDERER. (spark plug or vacuum leak at a specific fuel injector)

Chum lee

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