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2000 Chevy Malibu Knocking noise when idling

Tiny
NOAHJOHN0301
  • MEMBER
  • 2000 CHEVROLET MALIBU
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 156,000 MILES
My car is making a knocking noise. It's loud when idling but it gets quieter as I accelerate. The other day I was driving and it just died on me. Now it wont start over. It starts over once in a while and backfires a couple times and then dies. My brother said that it may be the timing chain? Do you have any ideas what it may be?
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Friday, August 20th, 2010 AT 4:09 AM

3 Replies

Tiny
MMPRINCE4000
  • MECHANIC
  • 8,548 POSTS
What engine is this?
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Friday, August 20th, 2010 AT 8:50 AM
Tiny
NOAHJOHN0301
  • MEMBER
  • 2 POSTS
It's a V6 3.1 liter engine
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Friday, August 20th, 2010 AT 9:30 AM
Tiny
MMPRINCE4000
  • MECHANIC
  • 8,548 POSTS
If timing chain broke, engine would not rotate, since chain would be jammed against crank.

Chain could be loose, affecting timing.

If oil level is full, try measuring the oil pressure wth a mechanical gauge.
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Saturday, August 21st, 2010 AT 8:45 AM

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