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catalytic converter
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  1. Engine & Drivetrain
    Howdy, I am going to check out an 09 SLT AWD in a bit. The seller states that all 3 catalytic converters were replaced in the last 2 years and that all O2 sensors were replaced less than 10,000 miles ago. Also states that all coil packs and plugs were replaced less than 10,000 miles ago as...
  2. General Tech
    I have had to replace all CC's on my GMC Acadia twice and I still get a code saying they are not operating properly. Any one else seeing this?
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