ENGINE PERFORMANCE PROBLEM1999 MERCEDES BENZ 280...

1999 Mercedes Benz 280

Tiny

gloriahoward

October, 16, 2010 AT 10:20 PM

Engine Performance problem
1999 Mercedes Benz 280 6 cyl Four Wheel Drive Automatic 116.00 miles

engine vibrating when first start up and putting in drive

FOUND 342 RELATED QUESTIONS

1 Answer

Tiny

rasmataz

October, 16, 2010 AT 10:49 PM

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.

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