fuel gauge is wrong - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 03-01-2007, 04:57 PM   #1
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Default fuel gauge is wrong

i would like to know if someone has an idea of what could cause this? for some reason when my fuel gauge is at 1/3 of a tank it is out of fuel and has time moves forward the tank becomes empty at a higher tank level.(when i bought the car, it would do this at 1/8th of a tank) thanks guys i know someone out there has the answer to my problem and if anyone else has had something like this happen to them please tell me what you did to resolve it. thanks again.
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Old 03-01-2007, 05:21 PM   #2
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Is it most noticable when braking or turning?
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Old 03-01-2007, 06:56 PM   #3
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i had this problem, a new sending unit was just the ticket now she reads accurate again
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Old 03-01-2007, 07:03 PM   #4
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Any 92 needing a new pump, strainer, or sender should seriously consider a replacement tank from a 93-95 with the improved baffles. This is a safety issue.
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Old 03-01-2007, 08:05 PM   #5
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now is the bonny a whole unit or is the pickup(sending unit) and pump seperate
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Old 03-01-2007, 09:40 PM   #6
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the problem isn't while turning or braking its always empty at 1/3 tank now
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Old 03-01-2007, 10:20 PM   #7
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Bonne is seperate pieces.

Fuel pump
Fuel Sender
Fuel Tank

WillWren is mentioning that we are aware that 92 model years had tanks that were less than desirable and you may want to consider upgrading.
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Old 03-01-2007, 10:22 PM   #8
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with the 93 tank would it be a straight swap for just the tank or would i need to change everything including the pump assembly? and is the wirining the same?
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