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1998 Pontiac Grand Prix Knocking and sputtering

Tiny
ARTDASHARK
  • MEMBER
  • 1998 PONTIAC GRAND PRIX
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.
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Wednesday, April 29th, 2009 AT 8:59 AM

1 Reply

Tiny
OBXAUTOMEDIC
  • MECHANIC
  • 3,711 POSTS
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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Wednesday, April 29th, 2009 AT 9:11 AM

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