Mechanics

ROUGH IDLE

1999 Subaru Forester

Shakes or Wobbles problem
1999 Subaru Forester 4 cyl All Wheel Drive Automatic 93000 miles

put new plugs and wires in on Saturday, but car idles rough. Runs fine going down road.
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Yoshi01
June 9, 2010.




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. Throttle position sensor.
11. Idle air control valve.

Tiny
Rasmataz
Jun 9, 2010.


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