1998 Ford Ranger runs rough no power

1998 FORD RANGER
147,000 MILES • 4 CYL • 2WD • MANUAL
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SSIMEK
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  • 1 POST
Idled rough stalls no power .. new plugs.wires maf.iac sensor egr working can't find any vacume leaks cat not pluged
Aug 15, 2010 at 7:02 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.False air leakage.
5.Faulty fuel injectors.
6.Insufficient fuel pressure.
7.Contaminated fuel.
8.EGR valve that is leaking.
9.Oxygen sensors.
10.Throttle position sensor.
11.Idle air control valve.
Aug 15, 2010 at 8:31 PM
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