NHTSA — Power Train: Transfer Case (4-Wheel Drive) Problems

2.9

hardly worth mentioning
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
48,000 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.

2001 GMC Sonoma drivetrain problems

drivetrain problem

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2001 GMC Sonoma Owner Comments

problem #1

Mar 012006

Sonoma 4WD 6-cyl

  • Automatic transmission
  • 48,000 miles

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

Purchased truck in 2006. Mileage at 48,000. Trouble starting, fuel pump replaced. Oil cooling lines replaced. Subsequently, automatic transmission slips from 2 wd to 4 wd for no apparent reason. I have noticed that this problem occurs when accelerator is not depressed, and wheels are turned, to turn a corner or to turn into/out of a driveway. Usually there is a depression in path as well, I.e. curb/dip at driveway entrance, pothole, etc. Engine is not always cold; sometimes shifts at end of trip, sometimes at beginning, no adverse weather conditions.

- Littleton, CO, USA

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