1988 Ford E-Series Van Engine loses power (hesitates)

1988 FORD E-SERIES VAN
100,000 MILES • V8 • 2WD • AUTOMATIC
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CGGREEN
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Engine loses power (hesitates) during take off/ Acceration/ and while crusing. It's not a constant loss it's on and off sometimes it will do it and some times it won't. While it was hesitating I floored it and it backfired. I've put new plugs and wires in it. It ran fine for alittle while then it got bad again. Usually after it's been running for a long time way after it's at operating temp it runs ok and doesn't really hesitate anymore while accerateing or cursing but sometimes on take off it will hesitate for a second. I can't figure it out I'm thinking fuel pump or electrical but don't know how to narrow it down. Thanks for your time
Aug 17, 2010 at 12:27 PM
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RASMATAZ
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Lack of acceleration,chugging,hesitating,bogging,misfiring etc. could be caused by one of the following below:

Start here-inspect and test all the items 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.
Aug 17, 2010 at 8:45 PM
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