Valve pinging problem
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Valve pinging problem
I recently had a new (rebuilt) 5.4L installed (by Ford dealer) in my 98 f150 4x4 because of a broken connecting rod on the #3 cylinder. Since the swap i notice some valve pinging under heavy throttle, I am running 93 octane gas because of the Hypertech tuner. Any suggestion of where to start checking, i am thinking it is a timing issue but am not sure .
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Joined: Mar 2005
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I had the same pinging issue and mine ended up being the mass air sensor was dirty and in turn made the computer tell the motor to lean out which made the motor ping under acceleration. Cleaned the MAS and problem went away.
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We are happy you have chosen the best source for Fords!
Enjoy FTE....and
JOIN CLUB FTE -SUPPORT THE FORUMS!
…..See you on the boards.
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Joined: Jul 2004
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Originally Posted by obryap
I recently had a new (rebuilt) 5.4L installed (by Ford dealer) in my 98 f150 4x4 because of a broken connecting rod on the #3 cylinder. Since the swap i notice some valve pinging under heavy throttle, I am running 93 octane gas because of the Hypertech tuner. Any suggestion of where to start checking, i am thinking it is a timing issue but am not sure .
Pinging is the death of these modular motors, so I suggest that you put everything back to stock, and return that tuner to hypertech.
I'm not affiliated with any tuner, but I do like the superchips custom tuning tuner, i'm sure that this site is a dealer.
JH
