6.0

fairly significant
Typical Repair Cost:
No data
Average Mileage:
155,000 miles
Total Complaints:
1 complaints

Most common solutions:

  1. not sure (1 reports)
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problem #1

May 092008

Avalanche LS 5.3L

  • Automatic transmission
  • 155,000 miles

Under a load or passing, or during pulling a hill the engine will ping. Doesn't sound like spark knock. The check engine light flashes, but then goes away when load is over. I am sure this isn't good for the engine, but it's not pulling any codes.

- Eric K., Fayetteville, AR, US

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