1992 Ford Bronco missing or surging

1992 FORD BRONCO
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BILL BURDETTE
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  • 2 POSTS
Engine Performance problem
1992 Ford Bronco V8 Four Wheel Drive Automatic

I have a 1992 bronco ive replaced the map sensor also the throttle postioner sensor . But at about 50 to 60 mph it starts to surge or miss but you can throttle it and it goes on. But when feathering it it surges again .
Nov 10, 2010 at 8:54 AM
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RASMATAZ
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Could be caused by one of the following below

Oxygen sensor.
Catalytic converter.
Fuel injectors dirty/sticking.
Mass airflow sensor/Airflow meter.
Throttle position sensor.
Crankshaft position sensor
Knock sensor
Manifold absolute pressure sensor.
EGR Valve
Fuel pressure regulator leaking or defective fuel pump.
False air leakage.
Fuel contamination.
Foul/defective spark plugs.
Open spark plug wires.
Ignition coil/Coil packs defective.
Incorrect ignition timing.
Cap and rotor.

Note:If it doesn't apply disregard it
Nov 10, 2010 at 3:26 PM