Back in August 2021 I was getting a fuel smell on the drivers side of the car and in the garage after a fillup. At the time I assumed maybe I over filled but the smell did not dissapate.Took the car to a local Chevy dealer and they found doc 4673948 regarding crack in "primary fuel pump module flange". They inspected it and determined it was OKAY. After further testing they determined "intermittent leak at vent solenoid" and replaced it. My cost $311,82. Next morning continued to smell gas. Called dealer..again and they could not get me in for a couple of days. I took the car to their "sister" dealership the next day after leaving car in the driveway over night.

Dealer #2 raised the car on a rack and ran the engine and quickly confirmed that "raw fuel was pouring out of the tank left side up top", After removing lots of parts including transmission found leak at the fuel tank module. My cost $3169.31.

It seems dealer #1 somehow missed the leaking fuel pump, This seems problematic since many C6 corvettes developed serious fuel leaks. I believe GM had a extended 10 year and 100,000 mile and free replacement of defective C6 parts. Dealer #1 also messed up the power top which dealer #2 repaired., cost $1359.90

After all of this as a "good will" gesture the dealership has give me one free oil change. I was expecting more after driving my around town with a leaking gas tank.

Paul Luczyk Mukilteo, WA

 

What a mess, sounds like neither were competent service centers. I had the same fuel smell problem two weeks ago and the dealer performed a smoke test to i.d issue. Luckily mine is a 2013 so it fell under the 10year/100k mile replacement. They returned the car in two days and with no charge. It seems that this is so common that it should either be extended beyond 10 years or an outright recall.

 

I would be raising hell. If the fuel line was just a crack at first dealer, with no raw fuel visible, it would be harder to detect....but do-able. That's why dealers service departments want the big bucks, right? The TSB states to look for fuel "droplets" below left tank.
At minimum I would want a refund for the misdiagnosed solenoid repair.

If you paid $3100 for fuel pump, hopefully they replaced fuel pumps AND fuel sender modules in BOTH tanks while tanks were out. The right side tanks have a fuel sender prone to deposit buildups that cause improper operation. I would hate it if that failed in the near future.

The warranty extension is 120,000 miles and 10 years.

 

I don't want to ruffle any feathers here at CF rules officialdom so I'm on tipy toes... My question is what year model C6 did GM correct this problem with leaking fuel? And what "C6" year is a Corrected Fuel Leak year? I want to drive a C6 but smelling fuel will give me a headache and a four thousand dollars fix-it charge in addition to the purchase price, has me wondering if a C6 is a bad idea. Any DMV rules about a Corporation selling cars that stink of fuel? Seams as there should be.

 

Well, since in a post above, a 2013 had the problem, so it was never corrected in production. Other 2013s also have been reported. I’m not even sure that the replacement part is guaranteed not to fail in the same way. Failures like this get a lot of press on the forum, because they are expensive to repair if you fall outside of the special coverage, and the victims are often po’d enough to vent. I don’t blame them. On the other hand, there’s no stats I’m aware of that would allow you to assign a probability of it happening. Maybe the likelihood is 10%, maybe 30%, who knows? I’m well aware of the problem, but I’m not letting that stop me from enjoying the vette. I’ll deal with it if and when it happens. Same for the HB wobble.

Folks that experience the problem are encouraged to report it to the NTSB, and I believe many have done so, but there’s been no recall mandated. I haven’t really searched much for it, but I don’t know of any case where the leak caused a fire or explosion. To me, if it leaks in your closed garage, that’s the big risk. If you smell gas, park it in the open.