1998 Lexus GS 400 Missing Vibration

1998 LEXUS GS 400
169,000 MILES • V8 • 2WD • AUTOMATIC
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CLARENCE40
  • MEMBER
  • 1 POST
Missing vibration at idle and stops, please help me troubleshoot what could be causing this. tks
Feb 16, 2010 at 10:51 AM
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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.
Feb 17, 2010 at 5:52 AM
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