6.7

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

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problem #1

Nov 282006

Sierra 1500 6-cyl

  • Automatic transmission
  • 10,000 miles
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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