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1992 Ford Bronco missing or surging

Tiny
BILL BURDETTE
  • MEMBER
  • 1992 FORD BRONCO
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.
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Wednesday, November 10th, 2010 AT 8:54 AM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
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
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Wednesday, November 10th, 2010 AT 3:26 PM

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