1999 Mercedes Benz 280

1999 MERCEDES BENZ 280
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GLORIAHOWARD
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  • 1 POST
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
Oct 16, 2010 at 10:20 PM
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RASMATAZ
  • ✓ASE Certified Mechanic
  • 75,992 POSTS
  • ASE Certified Mechanic
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.
Oct 16, 2010 at 10:49 PM
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