6.0

fairly significant
Typical Repair Cost:
$4,300
Average Mileage:
113,000 miles
Total Complaints:
1 complaints

Most common solutions:

  1. replace (1 reports)
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problem #1

Jun 152021

Tahoe LT 5.3L V8 Ecotec

  • Automatic transmission
  • 113,000 miles

6L80 transmission runs too hot from factory. Averages 200-210f. Needs to run cooler to last longer. A transmission thermostat delete (see YouTube) or different engine thermostat that runs cooler is required unless you live in extreme cold areas.

- Jason A., Fernandina Beach, FL, US

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