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C6 Corvette ZR1 & Z06General info about GM’s Corvette Supercar, LS9 Corvette Technical Info, Performance Upgrades, Suspension Setup for Street or Track
Fellas, I have an 07Z with 28k miles. Past couple weekends I have done long drives...after a couple hrs I smell a hint of gas in the cabin when driving....after I park in the garage and close the door, the gas smell is thick. I vented the garage door and the smell wears off after a couple hours. Also, the smell doesn't happen on short drives. My gas cap doesn't fit well at all and just sits there loose...that's after getting a warranty replacement.
So I have two questions:
1) any idea what is going on
2) I did a lot of sound deadening work in the cabin by the rear speaker, upper seat belt mount, and down to the sill. Could I have inadvertently disrupted the fuel system, like a vent hose or something? Isn't the fuel system on the other side of the wall (accessed by removing the wheel well liner or dropping the tanks)? If it's on the outside, I wouldn't have touched it. Here is a pic:
The car has GMPP warranty, but I'd feel a lot better if I knew whether I could have messed it up. I took the trim off so I can see; only see the power doors/locks and the fuel door release line.....where is that evap hose?
My 07' C6Z had small cracks starting to develop like those posted in the thread and it has 23k miles on it. I replaced it with a whole new fuel pump module.
Nothing that I know of fuel or emissions related can be accessed inside the car. It's all underneath and a pain in the ***. You didn't do anything to cause the issue.
My 07' C6Z had small cracks starting to develop like those posted in the thread and it has 23k miles on it. I replaced it with a whole new fuel pump module.
Nothing that I know of fuel or emissions related can be accessed inside the car. It's all underneath and a pain in the ***. You didn't do anything to cause the issue.
Hey thanks for that link and the reassurance. I'm taking it to the dealer and hopefully GMPP comes through again. I'll report back with how things go...
my 07Z with 28k miles is at the dealer. They can't reproduce the smell. They tried idling it for three hours and increased fuel pump pressure to max. Also said they looked at the pump fitting with a camera. The car is under GMPP warranty. Any ideas? The car stinks up my garage with a thick gas smell after a fillup and a long drive...
DJFURY05 gave you what most of us would put the money on, two threads within the last week or so and many I've seen over the last year or so. I have an 08 and hoping it holds up... I'm curious what view the scope gave as I thought the issue was at the top of the tank or in the area where the fuel pump is mounted... Let us know please
Thanks, I'm wondering what to do when the dealer can't reproduce the problem... They are going to leave the smoke test on overnight... They say that helps find leaks on other cars. Maybe I am just worrying prematurely about this... But my money was on not being able to reproduce the problem.
Well of course the dealer can't replicate the issue. They aren't going to get the build up of fumes in a big shop like you have in your garage. Having that much gas much gas vapor in your garage is straight up dangerous. Have you noticed a small puddle or anything under the car after being parked for a while? Sounds like a fuel leak or your evap system is acting up. Any recent mods in the engine bay?
Well of course the dealer can't replicate the issue. They aren't going to get the build up of fumes in a big shop like you have in your garage. Having that much gas much gas vapor in your garage is straight up dangerous. Have you noticed a small puddle or anything under the car after being parked for a while? Sounds like a fuel leak or your evap system is acting up. Any recent mods in the engine bay?
Bingo.. examining the pump fitting with a camera on top won't show a whole lot. I've done it so I know. In order to properly inspect the pump fitting for cracks the tank has to be dropped. As I posted earlier I would bet money that this is your issue.
If you have no evap issues (any evap codes thrown?) then I don't see the smoke test doing any good in narrowing it down.
Also, not sure what kind of run around they gave you about fuel pressure increasing to the max, since its mechanically regulated to 58psi inside the tank and that's what it runs all the time.
my 07Z with 28k miles is at the dealer. They can't reproduce the smell. They tried idling it for three hours and increased fuel pump pressure to max. Also said they looked at the pump fitting with a camera. The car is under GMPP warranty. Any ideas? The car stinks up my garage with a thick gas smell after a fillup and a long drive...
I noticed my 08 smelled like gas after a drive and especially after some curves. I replaced the gas cap and cleaned up the neck where the gas cap seals. Now I rarely smell it.
I noticed my 08 smelled like gas after a drive and especially after some curves. I replaced the gas cap and cleaned up the neck where the gas cap seals. Now I rarely smell it.
Ive already replaced the cap once. Compared to the gas caps on my other cars, the replacement still seems loose and a poor seal. How can GM f-up something so simple as a gas cap? A flipping pickle jar cap would be better than the pos they put on the C6.
Hey fellas, is there any chance I could be smelling oil and mistaking it for gas? I drove for about 45 min yesterday and didn't get any odor in my garage. Pardon my ignorance, but I don't have a catch can on my car if that could mean anything. I don't see anything on my garage floor.
If you can get the car up high enough to stick your nose up to the pans that support the tanks sniff. Which ever one reports back the strongest smell will have the leak. If you run the gas down under a 1/8 tank you should be able to remove the pan. Look at the top of the pan where it makes contact with the tank. You will probably see the gas stains from it leaking down from the top.
If you can get the car up high enough to stick your nose up to the pans that support the tanks sniff. Which ever one reports back the strongest smell will have the leak. If you run the gas down under a 1/8 tank you should be able to remove the pan. Look at the top of the pan where it makes contact with the tank. You will probably see the gas stains from it leaking down from the top.
Thanks I'll take a look...does anyone have the pages from the manual for this or a diy?
07-21-2015, 08:35 PM
Help with Gas Smell
