My truck is miss firing could it be the O2 sensor won't go over 50 mph without forcing ecceleration could be the cause of the nation

Asked by Apr 03, 2017 at 05:23 AM about the 1986 Ford F-150 XL Extended Cab SB

Question type: Maintenance & Repair

1 Answer

85,455

Could be a plugged catalytic converter in the exhaust causing not able to get good acceleration, have that checked at an exhaust shop. The engine sounds like it needs a tune-up. Other possible causes are; aulty spark plug (s), Faulty ignition coil (s), Clogged or faulty fuel injector (s), Intake air leak, Fuel injectors harness is open or shorted, Fuel Injectors circuit poor electrical connection, Ignition coils harness is open or shorted, Ignition coils circuit poor electrical connection, Insufficient cylinders compression, Incorrect fuel pressure.

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