ford enginerunning rough and no power

1990 FORD F-250
180,000 MILES • V8 • 4WD • AUTOMATIC
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MARKANDKAREN
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  • 1 POST
ford f-250 4x4 351 1990 it is running rough and has little power it acts like the plugs and cap got wet. we have not got any rain for weeks. i did change the plugs and wires the cap looks good. still runs rough any suggestions? the check engine light is not on.
Dec 8, 2010 at 8:36 PM
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RASMATAZ
  • CAR REPAIR CONTRIBUTOR
  • 75,992 POSTS
Engine running rough or misfiring can be cause by the following:
1.Defective spark plug.
2.Inadequate spark/coil,defective spark plug wire.
3.Lack of compression
4.Vacuum leak
5.Fautly fuel injectors.
6.Insufficient fuel pressure.
7.Contaminated fuel.
8.EGR valve that is leaking.
9.Oxygen sensors.
Dec 8, 2010 at 10:01 PM
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