7.0

pretty bad
Typical Repair Cost:
No data
Average Mileage:
94,750 miles
Total Complaints:
2 complaints

Most common solutions:

  1. not sure (1 reports)
  2. replace camshaft (1 reports)
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This problem may be covered under warranty. Ask your Chevrolet dealer.

problem #2

Feb 252018

Avalanche LT2 5.3L V8

  • Automatic transmission
  • 129,000 miles

This issue is the 2nd time it occurred in my truck. When the problem happened in 2011, I had my truck for 2.5 years and only 33,000 miles on it. I almost missed the 36 month warranty. Although I was disturbed by this problem (I bought a Chevy truck because of its strong reputation of durability), I was relieved that I had time left on the warranty. I thought this was an isolated issue, however, I have recently found that this is a problem with numerous GM vehicles, namely Avalanche, and other related vehicles. The dealer had my truck for about 12 days. Now I will be doing the job (I am a tech) myself 7yrs and 96,000 miles later. Of all the vehicles I've owned, I never had a camshaft go once, let alone twice. This is recall worthy as it has happened so much over the years.

- Lorenzo E., Windsor, US

problem #1

Sep 082016

Avalanche Z71 5.3L

  • Automatic transmission
  • 60,406 miles

while on the road, truck would backfire, sounded like under the hood, suddenly, service stabilitrak light came on just like all the previous breakdowns, service engine light was flashing, this went on for about 5 miles, then suddenly, all the lights cleared?? back to the dealer.

Dealer checked vehicle and suspects debris in the injector caused concern, if you replace lifters, shouldn't you remove the "debris"

- Wifred T., Winter Haven, FL, US