8.5

pretty bad
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
3,600 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.

2005 GMC Sierra 3500 engine problems

engine problem

Find something helpful? Spread the word.
Get notified about new defects, investigations, recalls & lawsuits for the 2005 GMC Sierra 3500:

Unsubscribe any time. We don't sell/share your email.

2005 GMC Sierra 3500 Owner Comments

problem #1

Aug 182005

Sierra 3500 4WD 8-cyl Diesel

  • Automatic transmission
  • 3,600 miles

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

GMC 3500 crew cab dually with the 6.6 duramax diesel and allison automatic can to perform its designed job with out over heating. Truck is rated for 23,500 gcwr and a 16000 towing capacity. However it struggles to pull 7000 pounds and engine temperature got over 230, and transmission temperature over 210. The cooling fan struggles to control the heat and runs constantly, the noise is unbearable. If one were to attempt to pull my rv up a mountain grade in the summer I would be left stranded on the road or in traffic.

- Ten Mile, TN, USA

Not what you are looking for?