C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

1994 Gas Guage Question

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Old Sep 20, 2008 | 01:23 PM
  #1  
spedaleden's Avatar
spedaleden
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From: Mundelein Illinois
Default 1994 Gas Guage Question

My gas guage registers full when the tank is full,but stays in the full positon until the reserve light comes on and then the gauge reads empty. There is no in between

Anyone have this problem

Thanks
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Old Sep 20, 2008 | 02:06 PM
  #2  
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theadmiral94
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From: 1994 LT1 Coupe 6-speed with FX3 & 2000 LS1 Vert 6-Speed with F45 Hunterdon County, NJ
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most C4's have a problem with the gas gauge (ours never drops below 1/2 regardless of what's left in the tank).

There is a repair procedure in the tech notes section, some have tried it with success, others have done same procedure with no improvement.

One thing that 'might' help is a couple bottles of Techron gas additive (or the GM version from the dealer).

Problem is likely due to sulfer in gas which corrodes the contacts on the float, so remember to only use good quality premium gas.
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Old Sep 20, 2008 | 03:55 PM
  #3  
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Frizlefrak
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From: El Paso Texas
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Originally Posted by theadmiral94
There is a repair procedure in the tech notes section, some have tried it with success, others have done same procedure with no improvement.
I wrote it. PM me your email and I will send you the procedure with pics in MS Word format.
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Old Sep 20, 2008 | 10:13 PM
  #4  
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spedaleden
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From: Mundelein Illinois
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Thanks guys, I got that tech tip. I will try cleaning. If that doesn't work I guess it's a new sending unit.
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