5.0

fairly significant
Typical Repair Cost:
$300
Average Mileage:
102,500 miles
Total Complaints:
2 complaints

Most common solutions:

  1. oxygen sensor replaced (2 reports)
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problem #2

Oct 082011

Trailblazer EXT LS 4.3L V6

  • Automatic transmission
  • 100,000 miles

Bad sensor triggered service light. Also effects fuel efficiency.

- cjohnson419, Saginaw, MI, US

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problem #1

Jun 292013

Trailblazer EXT LS 4.2L

  • Automatic transmission
  • 105,000 miles

I purchased my 2004 Chevy Trailblazer used with 105K miles. When I purchased this vehicle used in 6/13 my code reader showed a bad oxygen sensor. I took my Trailblazer to a local shop to have the oxygen sensor replaced, which cost several hundred dollars.

- jtinker, Round Hill, VA, US

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