10.0

really awful
Typical Repair Cost:
$800
Average Mileage:
140,000 miles
Total Complaints:
1 complaints

Most common solutions:

  1. not sure (1 reports)
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problem #1

May 012012

Avalanche Z66 5.3L

  • Automatic transmission
  • 140,000 miles

starts with difficulty, runs very rough until warm, then seems to operate fine until the first start in the morning...then all over again

Update from Oct 16, 2013: failing fuel pump fixed the problem

- Bill W., Moscow, TN, US

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