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1993 Chevy Lumina What is wrong now?

Tiny
PRETTYHUTCH
  • MEMBER
  • 1993 CHEVROLET LUMINA
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 210,000 MILES
My catalytic converter got really hot the other day. We brought the car home and took off the exhaust and now my car starts rough and won't stay running. Any suggestions on what may have happened resulting from the catalytic converter got so hot?
Saturday, August 21st, 2010 AT 2:02 PM

3 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,706 POSTS
Was the converter red hot? Also, is it running rough with the exhaust off the car?
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Saturday, August 21st, 2010 AT 10:29 PM
Tiny
PRETTYHUTCH
  • MEMBER
  • 2 POSTS
Yes exactly!
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Sunday, August 22nd, 2010 AT 12:36 AM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,706 POSTS
First, the converter needs replaced. As far as the rough idle, it most likely deals with the O2 sensors not working properly because the exhaust is disconnected.

Replace the converter and get everything put back together. It should be fine.

Let me know.

Joe
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Sunday, August 22nd, 2010 AT 9:54 PM

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