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1995 Pontiac Grand Am Knocking noise

Tiny
SHADOWSTORM83
  • MEMBER
  • 1995 PONTIAC GRAND AM
Engine Mechanical problem
1995 Pontiac Grand Am 6 cyl Front Wheel Drive Automatic

I Just replaced the intake gaskets (upper and lower) and I think I put everything back the right way. When I start the car it knocks really bad. Someone please help!
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Thursday, December 3rd, 2009 AT 12:49 PM

1 Reply

Tiny
MMPRINCE4000
  • MECHANIC
  • 8,548 POSTS
First check the oil for coolant contamination, it would be a milky chocolate color.

If oil is contaminated with coolant, then it has most likely stripped the oil film from the main bearings and you are hearing a bearing knock.
If contaminated, driain oil and run a magnet through it, looking for metal shavings.

If oil is OK (no coolant/shavings in oil) repost and we will go from there.
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Friday, December 4th, 2009 AT 8:52 AM

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