1998 Pontiac Grand Prix Knocking and sputtering

1998 PONTIAC GRAND PRIX
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ARTDASHARK
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Engine Performance problem
1998 Pontiac Grand Prix 6 cyl Two Wheel Drive Automatic

I checked the oil and it is good, it has water and everything is fine but when I take off it hesitates to take off and it knocks really loud. It doesn't turn off but it doesn't run like it used to.
Apr 29, 2009 at 8:59 AM
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OBXAUTOMEDIC
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[quote:6fc608b866="artdashark"]Engine Performance problem
1998 Pontiac Grand Prix 6 cyl Two Wheel Drive Automatic

I checked the oil and it is good, it has water and everything is fine but when I take off it hesitates to take off and it knocks really loud. It doesn't turn off but it doesn't run like it used to.[/quote:6fc608b866]

Hello,

Is it a knock or does it sound more like a rattle or deiseling sound. If it is more like a rattle then I would say that it could be the Timing Belt has jumped timing and need to be replaced.

It could also be the lifters...

Also could be a weak Oil Pump...

First thing to do is to check Timing then Oil Pressure....


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Apr 29, 2009 at 9:11 AM
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