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Gas leak?

Tiny
RENDE75
  • MEMBER
  • 2002 PONTIAC GRAND PRIX
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 150,000 MILES
Engine's power is fine on flat road but weak on hills.
Also, when enigine stops, there is a strong smell of gas but no visible gas leak.
What's causing these problems?
Thursday, November 18th, 2010 AT 8:22 PM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
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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Thursday, November 18th, 2010 AT 8:23 PM

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