6.7

fairly significant
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
10,000 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2006 GMC Sierra 1500 engine problems

engine problem

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2006 GMC Sierra 1500 Owner Comments

problem #1

Nov 282006

Sierra 1500 6-cyl

  • Automatic transmission
  • 10,000 miles

A D V E R T I S E M E N T S

4.3 engine started shaking for not apparent reason, mileage at incident 10,000 miles. Engine RPM's would go up & down at idle & rough idle it did this for a couple of days. Engine shook violently and jerked. The vehicle stopped running would not turn on. Vehicle towed to dealer. Dealer had to replace ECM (computer) & crank shaft sensor. Vehicle after two weeks is now rough idle at times at start up & RPM's at idle still vary at times. Vehicle taken in to dealer and tech stated no hidden codes vehicle checked out okay according to dealer"?"

- Euless, TX, USA

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