2015 regal turbo premium 1 gas gauge problem

ThEwAy2b

Buick Newbie
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0
1
MN
Buick Ownership
Buick Regal LS
It's not the gs, but with the gs engine? Anyways anyone have problems with the fuel gauge sticking? Worked fine previously, but now when I fill it up to the brim it still only shows at 3/4 tank.
 

MelsRegal

Full Member
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278
83
Buick Ownership
Regal GS 2017
try a bottle of Techron Complete Fuel System Cleaner, black bottle. There was a similar issue mentioned on a Corvette forum where sulfur deposits on the sender unit caused incorrect readings and a bottle of Techron cleaned off the desposits.
 

Zeroboostbuick

Well-known member
1,174
312
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S.W. Ontario Canada
Buick Ownership
2018 Regal Sportback - 2010 Yamaha R6 (track bike) Past cars: 92 LeSabre, 98 Regal, 02 GrandPrixGT
Like Mel stated... It's either the sending unit's float contact surfaces are worn down or they have corrosion on them.
 
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