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'08 F150 V6 started pinging itself to death??

MrDragster1970

TCG Elite Member
Dec 18, 2011
4,919
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RT 66 area
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Work truck started to lose mileage & power. Now it's pinging so bad it's going to knock the damn piston apart.
Low load, cruising, seems to be damn near constant??
Tried better fuel & even octane boost.

Talked to a few guys and there's nothing they can think of.
No check engine light & the only code is head temperature is over limit, which makes sense, it's detonating to death!!

What should we check??

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