8.0

pretty bad
Typical Repair Cost:
$1,500
Average Mileage:
68,000 miles
Total Complaints:
1 complaints

Most common solutions:

  1. replace fuel pump and fuel pump modulator (1 reports)
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problem #1

Aug 142024

Sierra 3500 Denali 6.6L Duramax

  • Automatic transmission
  • 68,000 miles

I have never had a diesel truck and we have owned many Ford and Dodge need a replacement at 68,000 miles. So disappointing for a GMC truck and this is the first GMC diesel I have purchased probably will not ever purchase another GMC.

- Julie B., New Port Richey, US

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