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Engine knocking

Tiny
LEMMON
  • MEMBER
  • 2002 SATURN SW2
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 150 MILES
2002 saturn / 4 cyclinder / 150,000 miles / knocking at idle only / could I just need plugs? / Well maintaned car / sw2
Sunday, November 14th, 2010 AT 7:58 PM

2 Replies

Tiny
DAVE H
  • MECHANIC
  • 13,383 POSTS
Thanks for the donation. Much appreciated

The car is probably knocking at all speeds but gets quieter the faster the engine is turning. I would have a tech look at the vehicle to determine where the knock is coming from. I doubt it is just a bad spark plug?
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Sunday, November 14th, 2010 AT 8:18 PM
Tiny
BMRFIXIT
  • MECHANIC
  • 19,053 POSTS
If need a spark plugs engine would be running rough and have a misfiring codes
to have a knocking sound at idle check oil and oil pressure
check and make sure have the correct oil filter
Check belt and accessories driven by it
alos check Exhaust shield
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Sunday, November 14th, 2010 AT 8:20 PM

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