Mechanics

POOR FUEL ECONOMY

1995 Cadillac Deville

Engine Performance problem
1995 Cadillac Deville V8 Two Wheel Drive Automatic 126000 miles

Ive done the tune-up, changed the oil, and the fuel filter. Now I am looking at a possible egr valve problem. I have poor accelleration, car shut off while idle, idle is shaky. I have a problem code of Po 48. What should I do. And what do you use to clean the egr valve and fuel injectors?
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Sirhc48076
June 21, 2009.




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