Mechanics

I AM GETTING TERRIBLE GAS MILEAGE

1994 Oldsmobile Cutlass

What is causing the sudden heavy fuel consumption on 1994 oldsmobile cutlass supreme
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Danielraffensparger
December 7, 2011.




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

Tiny
Rasmataz
Dec 7, 2011.


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