NHTSA — Fuel System, Gasoline Problems


hardly worth mentioning
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
77,540 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.

2007 Hummer H3 fuel system problems

fuel system problem

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2007 Hummer H3 Owner Comments

problem #1

Feb 022014

H3 5-cyl

  • 77,540 miles


Smelled radiator fluent when I parked into the drive way, popped the hood and saw that the liquid splashed all over the engine and parts as well as on top of the plastic fan cover, which seemed odd. Couldn't find the leak in the hose. Looked at the Hummer forum that I'm a member of and lord behold there was a big topic of radiators cracking and breaking in the same places with the 2007 models. No recall has been issued, so no recall has been submitted. But it's a well known defective radiator problem that GM knows about but won't recall. So they decided to make a new radiator that fixes the problem for the 2007 Hummer. The problem is the middle pin that holds the radiator rubs the neck and starts a cracked under the styrofoam, thus the right drivers side cracks in the same spot as well on the plastic side. Hundreds of H3 owners had this happen to them and post pics and what not, but still no recall. This problem is ongoing and nothing is being done. I have spoke to the Hummer customer service and they contacted the local GM and they scheduled my scheduled date to take my H3 in Feb 17 2014, @ 8 am at the local GM dealership and hopefully they will fix this issue and not charged me to fix due to the fact that they know the problem and have done nothing to fix it. But it's been know that they will not fix the radiator and they say it's due to climate which is false because every H3 owner has it break in the same place, and have submitted countless tickets.

- San Antonio, TX, USA

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