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2004 Chevy Tahoe Catalytic Convertor-2004 Z71 Tahoe

Tiny
DSCHMEELK
  • MEMBER
  • 2004 CHEVROLET TAHOE
  • V8
  • FWD
  • AUTOMATIC
  • 108,000 MILES
Hello, I recently replaced my catalytic convertor, mass airflow sensor, and 02 Sensors on my 2004 Z71. The check engine light went off for about a month and is back on. What could be the problem? Thx!
Monday, August 23rd, 2010 AT 7:14 AM

3 Replies

Tiny
WRENCHTECH
  • MECHANIC
  • 20,758 POSTS
What is the code number being set?
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Monday, August 23rd, 2010 AT 7:57 AM
Tiny
DSCHMEELK
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  • 2 POSTS
Not sure yet. Will know tomorrow. Any ideas w/o knowing?
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Monday, August 23rd, 2010 AT 8:19 AM
Tiny
WRENCHTECH
  • MECHANIC
  • 20,758 POSTS
No, not at all

That's like asking me what the guy knocking at your door wants without knowing who's knocking on the door.
That light can come on for over 300 different reasons.
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Monday, August 23rd, 2010 AT 8:28 AM

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