Idles

Tiny
DEVON7474
  • MEMBER
  • 1997 CHEVROLET MONTE CARLO
My 97 monte carlo idles and it is burning a lot of gas, should I get a tune up first?
Friday, February 18th, 2011 AT 3:13 PM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Do have a check engine light on and when was the last tune-up?

Probable causes of an engine running rich are as follows:

1. Excessive fuel pressure can be cause by restricted fuel return line
2. Defective Oxygen Sensors.
3. Leaking injectors and fuel pressure regulator.
4. Coolant temperature sensor out of calibration.
5. Restricted air intake system.
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Monday, March 28th, 2011 AT 2:59 AM

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