8.0

pretty bad
Typical Repair Cost:
No data
Average Mileage:
900 miles
Total Complaints:
1 complaints

Most common solutions:

  1. not sure (1 reports)
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problem #1

Nov 012019

Sierra 3500 Denali Duramax

  • Automatic transmission
  • 856 miles

Knock sound when suspension is hitting smaller short bumps (ie pot holes).

The dealer says they can’t reproduce the sound. One of their techs took me for a ride to find the problem, and drove down smooth roads 🤦🏽‍♂️. Tech says there's no witness marks, and will have to keep an eye on it. Problems still there at 2,900 miles. Still no fix.

- Joseph W., Santa Rosa, CA, US

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