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2001 Chevy Impala rough idle

Tiny
ALEXMCCARTHY
  • MEMBER
  • 2001 CHEVROLET IMPALA
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 356,000 MILES
Hello
my 2001 impala 3.4 liter has a lot of miles, but runs very well as it has been extremly well maintained. It has very recently begin to idle with a strong, steady vibration when stopped ( red light, stop sign). It does not do this in park or neutral, only reverse or any of the drive gears 1-2-3-d

any suggestions?

thank you sirs
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Thursday, April 2nd, 2009 AT 10:19 AM

1 Reply

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,885 POSTS
When was the last tune up? Also, make sure the air filter is clean. If all is good, you may want to make sure the catylatic converter isn't starting to plug. Also, you may need to check engine compression. That is a lot of miles.

Joe
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Monday, May 4th, 2009 AT 1:51 PM

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