4.0

definitely annoying
Typical Repair Cost:
$50
Average Mileage:
121,650 miles
Total Complaints:
1 complaints

Most common solutions:

  1. replace oxygen sensor (1 reports)
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problem #1

Jul 222022

Sierra 1500 SL 4.3L V6

  • Automatic transmission
  • 121,625 miles

Engine light came on so I plugged in my OBD2 scanner and it gave me 3 codes for O2 sensors. P0138, P2270, P2271, Bank 1 Sensor 2. I have placed an order for the O2 sensor and now waiting for it to be delivered. I will replace the bad O2 sensor and see if that fixes my issue.

- bullgod08, Ripley, US

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