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Oldsmobile
Cutlass
Engine
Symptoms
Poor Mileage
I am getting terrible gas mileage
1994 OLDSMOBILE CUTLASS
DANIELRAFFENSPARGER
MEMBER
2 POSTS
FOLLOW
what is causing the sudden heavy fuel consumption on 1994 oldsmobile cutlass supreme
Dec 7, 2011 at 9:00 PM
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RASMATAZ
CERTIFIED EXPERT
75,992 POSTS
Could be needing a major tune-up/running too rich
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
Dec 7, 2011 at 9:05 PM