1997 Chevy Suburban Check engine light

Tiny
MICHAEL H
  • MEMBER
  • 1997 CHEVROLET SUBURBAN
  • V8
  • 4WD
  • AUTOMATIC
  • 141,000 MILES
My check engine light was on for an o2 sensor so I replaced all of them. 2 weeks later the check engine light was on again. This time it is for poor porformance on bank 2. I checked and all the o2 sensors are regulating properly. Do you have any suggestions to what it might be.
Friday, October 24th, 2008 AT 8:00 PM

2 Replies

Tiny
LEGITIMATE007
  • MECHANIC
  • 5,121 POSTS
It could be a bad catylitic converter have it tested, if I am not mistaken, this model has more than one
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Friday, October 24th, 2008 AT 9:24 PM
Tiny
BMRFIXIT
  • MECHANIC
  • 19,053 POSTS
Check for vacuum leaks
if you have codes # will help to identifying the issue
let me know what do you have for codes

need manual CHECK IT @
https://www.2carpros.com/kpages/auto_repair_manuals.htm
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Friday, October 24th, 2008 AT 9:38 PM

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