fuel gauge stays moves only between 3/4 and full - 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 06-02-2007, 05:38 PM   #1
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Default fuel gauge stays moves only between 3/4 and full

my fuel gauge doesnt seem to be wrking .. it will never go below 3/4 and when i put gas in it will range anywhere between 3/4 and full even if only a small amount is put in.. any suggestions?
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Old 06-04-2007, 03:47 PM   #2
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you will get more help if people know what they are dealing with

please put 93 SE in your signature
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Old 06-06-2007, 04:55 PM   #3
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I would first try some injector cleaner like Gumout REgane MAx or TEchron.. GM also has their injector cleaner.. apparently our tank is susceptible to sulfhar stain or something like that... and the sending unit gets dirty. Mine was from bad gas ( damm hick boonie gas stations ), wouldn't go pass lower then 1/3 of a tank. Bottle of TEchron.. and 2 tanks of supreme gas ( from the city ) later.. mine is working. TAmara'* in her case is dead...

You may have to change the sending unit arm... there'* a good info on here somewhere regarding changin it ( but was on 00+.. but similar concept ) and would be cheaper then the whole sending unit replacement cost.
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