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2004 C5 fuel cross over issues

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Old Jun 12, 2015 | 07:15 PM
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Default 2004 C5 fuel cross over issues

I test drove a 2004 C5 that I really liked today, but it seems like the 2004 C5 has fuel cross over issues based on some threads. Is this common to all C5's? How about C5Z's? Is this a car I should stay away from?
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Old Jun 12, 2015 | 07:45 PM
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i wouldnt worry to much about it. I have an 04Z and i wouldnt trade it for another year because of it.
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Old Jun 12, 2015 | 10:12 PM
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Originally Posted by 8VETTE7
GM had some issues with the gas tanks in a range of VIN's made between Oct 8 2003 and March 18, 2004. VIN range is 45110258 through 45125500.

Many cars in that range developed fuel tank leaks like this:

http://forums.corvetteforum.com/albu...ictureid=42084


Potentially any car in that VIN range can still have the problem.

NHTSA let GM off the hook by allowing them to issue a "Special Coverage Adjustment" rather than forcing a recall of vehicles in the VIN range. That special coverage was a 10 year or 100,000 mile warranty, which ever came first, on failure of the fuel tank. The 10 years has gone by so now anyone that has a failure pays out of pocket for repairs. Typical dealer charges will be around $2500 for replacement of the tank and associated parts. Usually only the drivers side tank fails.



There were a couple recent threads by members whose car experienced the problem after the 10 year period and GM refused any help on payment for repairs.

Basically you take the risk of having to pay out of pocket for this repair should it happen to a car in the suspect VIN range if you purchase one that has NOT already been serviced. GMVIS will have info if the repair HAS been done on any car you may be interested that is within the suspect VIN range
Great information, thanks. I will check the VIN. How common of a problem has this been if the cars VIN is in this range? Does this same cross over issue apply to C5/Z's. I have been going back and forth between getting the C5 or C 5/Z as an HPDE car. I know most folks say get the Z06 but it would be nice to save $ 4 or $5 K and spend that $ on the cooling/brake /seat/ tire upgrades. The HP on the c5 seems sufficient to me.
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Old Jun 13, 2015 | 12:54 PM
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Mine had the problem when I bought it. Fortunately the dealer saw it just before they shipped it to me and fixed it. It is a $2500 job, so just keep that in mind. Mine only had 11,500 miles on it.
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Old Jun 13, 2015 | 04:01 PM
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I did mine myself (right tank, but ended up taking both out). Was quoted $2200+ from the dealer, cost me ~$300 in parts (got a used tank from a 2007 Vette, a new crossover, and new in-tank lines).
I wouldn't let it keep me from buying a 2004.
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Old Jun 16, 2015 | 01:19 PM
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Originally Posted by 8VETTE7
GM had some issues with the gas tanks in a range of VIN's made between Oct 8 2003 and March 18, 2004. VIN range is 45110258 through 45125500.

Many cars in that range developed fuel tank leaks like this:

http://forums.corvetteforum.com/albu...ictureid=42084


Potentially any car in that VIN range can still have the problem.

NHTSA let GM off the hook by allowing them to issue a "Special Coverage Adjustment" rather than forcing a recall of vehicles in the VIN range. That special coverage was a 10 year or 100,000 mile warranty, which ever came first, on failure of the fuel tank. The 10 years has gone by so now anyone that has a failure pays out of pocket for repairs. Typical dealer charges will be around $2500 for replacement of the tank and associated parts. Usually only the drivers side tank fails.



There were a couple recent threads by members whose car experienced the problem after the 10 year period and GM refused any help on payment for repairs.

Basically you take the risk of having to pay out of pocket for this repair should it happen to a car in the suspect VIN range if you purchase one that has NOT already been serviced. GMVIS will have info if the repair HAS been done on any car you may be interested that is within the suspect VIN range
The car 's Vin is 45101067 which is earlier than the problem range that is 45110258 to 45125500. I guess it must have been a really early 2004. It is interesting that they changed the tanks shortly after starting production. Thanks for the great information.
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Old Jun 26, 2015 | 05:14 PM
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Originally Posted by vicomel
The car 's Vin is 45101067 which is earlier than the problem range that is 45110258 to 45125500. I guess it must have been a really early 2004. It is interesting that they changed the tanks shortly after starting production. Thanks for the great information.

thanks for all the info on this thread. I just bought a used 2003 C5Z with a production date on 09/2002 and vin 35106885. The car has 59,000 miles on it. I don't fall into the category described in your 04 gas tank issue posted so I'm wondering why after I fill my tank the garage smells like a gas station. I checked after I moved it and there was no gas on the ground. My wife kicked the car out of the garage permanently (said I'd have to do all the laundry if I left it in there) lol. I just replaced the gas cap so I'm curious if that will help at all.
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Old Jun 28, 2015 | 07:27 PM
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Originally Posted by sgmz06
thanks for all the info on this thread. I just bought a used 2003 C5Z with a production date on 09/2002 and vin 35106885. The car has 59,000 miles on it. I don't fall into the category described in your 04 gas tank issue posted so I'm wondering why after I fill my tank the garage smells like a gas station. I checked after I moved it and there was no gas on the ground. My wife kicked the car out of the garage permanently (said I'd have to do all the laundry if I left it in there) lol. I just replaced the gas cap so I'm curious if that will help at all.
If your tank is cracked at the very top at the crossover bung you may not see any gas on the ground, but you will definitely smell it.
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Old Jun 30, 2015 | 08:29 PM
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Originally Posted by SS2001SS
If your tank is cracked at the very top at the crossover bung you may not see any gas on the ground, but you will definitely smell it.

Filled tank today and once pump cut-off that was it. No topping off...with the addition of new gas cap and not over filling tank lets hope the gas smell goes away. So far so good.
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Old Jul 1, 2015 | 04:12 PM
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Next time you fill up, put the cap on and push down on the rear of the car a few good times to see if any fuel sloshes out. You'll have to get down and look under the rear of the car at the metal pans that hold the tanks in. You should not see or smell any gas.
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