2003 Ford 4.2 engine

James Williams

Well-known Member
All at one time Im hearing valve pinging,But its not under load its more when your at high rpm.From 2 to 3 or 3 to 4.Going to high test gas helped it but did not eliminate the problem.This truck has 175000 miles and Ive always used the recomended oil.Any advice would be helpful

jimmy
 
I have the same prob in my 03 with the 5.4 liter in it, garage was saying the mass air flow sensor might be going on it, or its running lean...been doing now for three years and hasnt affected anything other than noise...Bob
 

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