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How do you drive...by mileage not that much..Might help giving it a good run...if you dont drive above 60 use 2nd gear for about 10mi. May be getting carbon buil up on valves or cyl heads??????
I have a 1990 FLair with a F.I. 460 Ford. On a long hill or when the engine get a little hot, it will stutter, make sound like small backfires and lose power. It will only do this under load and hot. When it cools off it stops. I have checked fuel pressure, replaced plug wires etc and throtle possition sensor. The engine has 44k on it.
Mine did this and I ended up replacing the coil. But that was on an '83 chassis with carburetor. I don't know if your coil is similar to mine. Mine looks like the old fashioned oil-filled coil, two primary terminals, center secondary terminal for spark lead to center of distributor cap. Hope this helps. God Bless,jd |
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