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Exhaust

Tiny
AMANDAFOWLE
  • MEMBER
  • 2003 CHEVROLET IMPALA
  • 3.1L
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 180,000 MILES
Exhaust broke off at flange behind converter. Flange has been cut off, but there is not enough remaining straight pipe to get a good connection. Is it safe to cut the exhaust between the converter and rear 02 sensor so that we can run a straight pipe to reconnect the rest of the exhaust system? This would leave the converter but eliminate the rear 02 sensor.
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Thursday, March 3rd, 2016 AT 9:26 AM

5 Replies

Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
If you eliminate the O2 sensor it will set a code, try welding a piece of pipe to the converter or inside it to reconnect.
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Thursday, March 3rd, 2016 AT 9:33 AM
Tiny
AMANDAFOWLE
  • MEMBER
  • 3 POSTS
We do not have a welder handy and are trying to fix in a home garage. I realize that eliminating the sensor will send an error code to the computer, but will it affect the overall operation of the vehicle?
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Thursday, March 3rd, 2016 AT 9:35 AM
Tiny
AMANDAFOWLE
  • MEMBER
  • 3 POSTS
Below I have marked the section that I would like to eliminate from the exhaust system.
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Thursday, March 3rd, 2016 AT 9:50 AM
Tiny
WRENCHTECH
  • MECHANIC
  • 20,757 POSTS
It really isn't that expensive to have an exhaust specialty shop do this for you. And then it's done right.
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Thursday, March 3rd, 2016 AT 9:53 AM
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Wrench tech is right.
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Thursday, March 3rd, 2016 AT 9:58 AM

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