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Gas Gauge Funky, Any Idea's?

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Old Jun 17, 2012 | 01:51 PM
  #1  
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St. Jude Donor '12
Default Gas Gauge Funky, Any Idea's?

2004 Covert Lemans Blue / Shale

Just got back last night from a trip to the Corvette plant / musem in Bowling Green leaving from Tampa FL. My gas gauge started doing some funky stuff along the way. When the tank drops a bit under full the gas gauge drops to E (Flat lines) then the low fuel appears on the read out and the check engine light comes on. Since I was able to put more that 200 miles on te car while in this condition I started using the trip odometer to see whan I would need gas.

Weirder after the tank fell under half a tank the gauge would come back up, read correctly and then the low fuel light and check engine light both dissapear? This happened throughout the trip. I don't have a way to pull a code today but will try and get one during the week this week. Meanwhile any idea's?

Before leaving for the trip I installed a window valet but don't think this may have anything to do with this? Otherwise the car is stock!


Thanks in advance
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Old Jun 17, 2012 | 02:01 PM
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Must not do much reading on the forum.

Here's you some material:

http://forums.corvetteforum.com/c5-t...ght=fuel+gauge

or

http://forums.corvetteforum.com/c5-t...ght=fuel+gauge

or, you could use the SEARCH function or even Google and find probably a couple hundred more. Good luck.

Last edited by 65GGvert; Jun 17, 2012 at 02:09 PM.
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Old Jun 17, 2012 | 02:42 PM
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Originally Posted by bonzo
... I don't have a way to pull a code today but will try and get one during the week this week. Meanwhile any idea's?
You can always get codes from the DIC in a C5. Go here to see how.
http://www.c5forum.com/ayc/dtcdic.php
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Old Jun 17, 2012 | 02:48 PM
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Originally Posted by 8VETTE7
WOW, gas guage problems in a C5. That's a completely new one. Never heard of that one before
Nice constructive post, the guys been a member here since April 2012, a newbie. Bonzo, this is a prettty common problem and has been well documented. You can use the search function, the most common solution is to use a bottle of Techron with a few fillups of fuel. Do some reasearch, good luck, and welcome to the forum.
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Old Jun 17, 2012 | 05:02 PM
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My local autozone has techtron on special. Buy 1 get 1 free. Just a heads up.
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Old Jun 17, 2012 | 05:22 PM
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Run a few bottles of Techron thru it.and read the stickys at the top of the page.
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Old Jun 17, 2012 | 09:13 PM
  #7  
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Default Funky Gas Gauge

Thanks guys, I am new to the forum, but not to vettes, this is my 6th one, but only my 2nd C5 my last C5 was a 98 Pace car and didn't have this issue. I'll read up and try the techtron as well.
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