rattling @ high rpms
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Senior Member
Joined: Oct 2003
Posts: 146
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From: bremerton wa
rattling @ high rpms
98 f150 4.6L 4x4 supercab 91k miles
rattling at high rpms already replaced alternator & belt,
air filter,oil & filter, plugs and wires, hypertech programmer, 92 octain gas. why does it still rattle at high rpm??? did i gap the plugs wrong?? i used auto lite single platinum plugs .054 gap and
auto lite wires. i was told a sticky lifter. what else could it be?
rattling at high rpms already replaced alternator & belt,
air filter,oil & filter, plugs and wires, hypertech programmer, 92 octain gas. why does it still rattle at high rpm??? did i gap the plugs wrong?? i used auto lite single platinum plugs .054 gap and
auto lite wires. i was told a sticky lifter. what else could it be?
Senior Member
Joined: May 2001
Posts: 252
Likes: 0
From: Newtown Square, PA
I've heard that some trucks still ping even tho they use 92 octane. Might want to do a search on the subject and see what other ways you might try to prevent it.
Also, where is the rattling coming from? I assume the engine compartment since you changed the alternator, etc. I had a rattle that bugged me for months, and found it to me a metal mud-guard over the 4wd shaft that was loose.
Hope your fix is as cheap as mine.
Also, where is the rattling coming from? I assume the engine compartment since you changed the alternator, etc. I had a rattle that bugged me for months, and found it to me a metal mud-guard over the 4wd shaft that was loose.
Hope your fix is as cheap as mine.