.
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??
.
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??
.