cherry red manifold
20

Asked by Al Nov 08, 2016 at 11:51 AM about the 1988 Ford Ranger STX Extended Cab SB

Question type: Maintenance & Repair

I have replace exhaust manifold, catalytic
converter, intermediate  pipe, Muffler, tailpipe
and water pump. Truck seems to be running ok
but the exhaust manifold does get to cherry red

3 Answers

F_O_R answered 7 years ago

It could be running too rich or the ignition timing could be way off.

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George answered 7 years ago

Sounds like you could possibly have a bent or stuck exhaust valve. I would reccomend taking a look at the spark plugs and see if they are burnt up, a whitish color, or fouledmout from to much fuel, they will be covered in black soot from running to rich.

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