trouble idle

2004 VOLVO XC90
105,000 MILES • 5 CYL • AUTOMATIC
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BILL ELLIS
  • MEMBER
  • 1 POST
The auto parts store says gasoline burning too rich in #1??? but couldn't say how to repair
Dec 29, 2010 at 7:50 PM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
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JIS001
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 3,412 POSTS
Fuel trim code? Check for intake leaks. You may need to smoke the intake to see if there are any leaks. If that is ok, check for a plugged up PCV system. You would need a special gage you insert in the oil dipstick tube to check for pcv vacuum. If there is no vacuum or there is positive pressure, clean the pcv system out and the throttle body. Also after repairs, make sure you reset the fuel trim adaptations or the light will come back on.
Jan 2, 2011 at 9:54 PM
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