1995 Pontiac Grand Prix Poor fuel economy...

1995 PONTIAC GRAND PRIX
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TOLTECA
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Engine Performance problem
1995 Pontiac Grand Prix 6 cyl Front Wheel Drive Automatic 153k miles
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My father owns a 1995 Pontiac Grand Prix, and he has recently noticed that he has been getting horrible fuel mileage. I calculated that he is getting roughly 6.5 mpg on the highway(30 gallons to travel 192 miles). I'm not a wizard, but I know this car should be doing better than that. The only thing that he has had done to it before this was a fuel pump replacement. It was done at a small shop, so, I am wondering what they could have done wrong to cause this problem, or if there is other issues with this car... ECM? Coil pack? Injectors? Any advice is appreciated.
Apr 23, 2008 at 2:21 PM
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JO-JO
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I would try a basic tune up, spark plugs, wires, air filter, fuel filter, oil change, even check the tire pressure, try that before anything else.
Apr 25, 2008 at 2:22 PM