Gas gauge on a Pontiac Bonnivelle

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Asked by Jun 30, 2014 at 07:25 PM about the 2004 Buick LeSabre Custom Sedan FWD

Question type: Maintenance & Repair

I have a 2004 Pontiac Bonneville, that has suddenly developed a quirk with the gas gauge.  My wife parks it in the garage all the time and there is never a problems wth the gauge.  If she leaves it for a long period in the hot sun, the gauge reads zero or empty.  I tried removing the gas cap to relieve any pressure and that didn't work  We even took it to a gas station and pumped in a full tank of gas. The pump nozzel  felt cold, so I thought that would fix it.  It was only 75 degrees out but the gauge remained zeroed out on empty.  We drove home and let it sit in the garage for three hours.  We started it up, and the gauge worked.  This has been going on with the same symptions for two months now.  Any suggestions?

1 Answer

79,085

When a gas gauge always reads empty it's a bad ground. Sounds like when the interior of the car gets hot and things expand a bad ground connection is created. I'd suspect the printed circuit behind the instrument cluster or the instrument cluster ground strap(s). HTH. - Jim

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