ROUGH IDLE

1999 Subaru Forester

Tiny

yoshi01

June, 9, 2010 AT 4:54 PM

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.

FOUND 2422 RELATED QUESTIONS

1 Answer

Tiny

rasmataz

June, 9, 2010 AT 5:37 PM

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.

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