2003 Chevy Impala help

Tiny
49FORD
  • MEMBER
  • 2003 CHEVROLET IMPALA
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 194,040 MILES
Catalyst System Bank 1 Low Efficienty. What can I do?
Wednesday, March 24th, 2010 AT 2:12 PM

1 Reply

Tiny
RHALL77
  • MECHANIC
  • 3,361 POSTS
Sounds lik your at the point where you might have to replace your cat converter. Stop at your local muffler shop for them to take a look at it. If it gets worse, your going to start to loose power and possibly get stranded.
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Thursday, March 25th, 2010 AT 11:09 AM

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