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.

Gas guage always full..

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Old 01-25-2003, 01:55 PM
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Default Gas guage always full..

I've been having a problem with the gas guage in my car. If I were to beleive it I would never have to buy gas. Reads full all the time. I saw in the technifo where some have had the opposite problem. Reading empty when full. Is this the same type of problem or do I have a bad sending unit? On the rare occasion it will drop to the right level and then slowly move back up to full. Any ideas would be appreciated.
Old 05-19-2004, 12:34 PM
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I have a 97 ssei with the same problem. I ran out of gas twice because of it. Have you figured it out yet? Any help would be greatly appreciated.
Old 05-19-2004, 12:43 PM
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I have the exact opposite issue with my 99. After you fill it up, it reads empty. Once the level goes down some it'll resume back to an accurate reading. I have been told that it'* the sending unit. Read on:

http://www.bonnevilleclub.com/forum/...093&highlight=
Old 05-19-2004, 03:00 PM
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It'* a defective fuel sending unit. I had to have mine replaced last month. The dealer said it was very common. No problems now with the guage.
Old 05-19-2004, 03:03 PM
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The bad thing is that the sending unit is inside the tank. Makes for a costly repair.
Old 05-19-2004, 03:18 PM
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I'm not sure about your model Bonne, but mine was easy because there is an access port in the trunk floor, so I didn't have to drop the tank. It only took a few minutes to change.
Old 05-19-2004, 10:15 PM
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my 97 Riviera has the exact same problem with it..
Old 05-20-2004, 07:36 AM
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There is not an access panel from inside the car on the 92-99 models. You have to drop the tank. ...I've learned just to deal with it!
Old 05-21-2004, 09:19 AM
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Yes I have learned to set the tripmeter when I fill up and get gas every 350 miles. With the price of gas nowadays maybe I will just live with it too. Thanks for answering me.
Old 05-21-2004, 01:32 PM
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yes, my 92 SSE has the shows empty when full problem, then goes back to normal after 30 miles.

My 97 SSEi has the always full problem.

Seems like a common GM thing.


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