1987 Ford Bronco has a miss all the time

1987 FORD BRONCO
136,000 MILES • 6 CYL • 4WD • AUTOMATIC
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BENHAMJIM
  • MEMBER
  • 2 POSTS
my emission light came on and it started missing about the same time. Changed plug's and wires,new fuel-injector,new coil,rotor-button and cap. New fuel pump(the one in the tank) fuel-filter, new battery, and new computer. Also done compression check on all 6 cyliders and they checked out perfect. Now, after doing all that, when I drive it, it looses power, to the point that, even floored, wont gain any speed.
Jun 3, 2010 at 7:32 AM
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RASMATAZ
  • ✓Experienced Mechanic
  • 75,988 POSTS
Inspect and test all the following listed below:

Oxygen sensor.
Catalytic converter.
Fuel injectors dirty/sticking.
Mass airflow sensor/Airflow meter.
Throttle position 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.
Jun 3, 2010 at 11:07 AM
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