2002 Chevy Cavalier rod knock

Tiny
GREGO30
  • MEMBER
  • 2002 CHEVROLET CAVALIER
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 140,000 MILES
My car idles and runs good. But At 3-4k rpm's it seams to sound like I could have a rod knock. If it is a rod knock. Will it still pass smog?And would the check engine light come on?And also what kind of test can I do to determine if my car does have a rod knock?THANKS.
Thursday, December 10th, 2009 AT 3:21 PM

2 Replies

Tiny
BIGJIM79
  • MEMBER
  • 239 POSTS
Does the car knock idling? If not, probably a spark knock.
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Monday, December 14th, 2009 AT 2:27 AM
Tiny
MMPRINCE4000
  • MECHANIC
  • 8,548 POSTS
I would also drain oil and then run a magnet through the used oil looking for any metal particles.

But as Jim mentioned, a rod would make noise all the time, getting worse as rpm increases.
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Monday, December 14th, 2009 AT 8:25 AM

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