1993 Nissan Pathfinder Rough engine

1993 NISSAN PATHFINDER
127,000 MILES • 6 CYL • 4WD • AUTOMATIC
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HAUGLID
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  • 1 POST
Vehicle runs real rough after warming up, already replaced plugs,wires,cap and rotor. After it warms up the whole vehicle shakes and seems to lose power, also idles rough after warm up
Apr 11, 2010 at 3:32 PM
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RASMATAZ
  • CERTIFIED EXPERT
  • 75,992 POSTS
Engine running rough or misfiring can be cause by the following-inspect and test all the following below:
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.Idle air control valve.
11.Throttle position sensor.
Apr 11, 2010 at 3:43 PM
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CWBY37
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  • 2 POSTS
Have you tried adjusting the timing via the distributor cap?
Apr 24, 2010 at 5:34 PM
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