Huge win for car owners! All TSBs to be made public. The Center for Auto Safety just made the NHTSA (US Government) make public the full text of all TSBs from now on. They are the same organization that has petitioned the NHTSA & filed lawsuits to protect car owners over exploding gas tanks & other major safety issues. Whenever you drive in your car, you are safer thanks in part to a lot of work over the years by this small but very effective consumer advocacy group.

Please take a moment & say thank you by donating $5 or whatever you can to the Center for Auto Safety.


hardly worth mentioning
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
156,000 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 C4500 engine problems

engine problem

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2006 GMC C4500 Owner Comments

problem #1

Jan 202014

C4500 8-cyl Diesel

  • 156,000 miles


Pulling a loaded trailer up a steep grade on a major highway. Speed was approx. 40mph. Driver hear a "clunk" noise then the low coolant light came on and then the engine temp started to rise. Pulled over and there was coolant leaking from the front of the truck. Upon further inspection the bottom radiator hose had been cut from the fan that exploded and the fan also tore the fan shroud open too. Summary- fan exploded, which ruined the fan shroud and the lower radiator hose.

- Las Vegas, NV, USA

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