Why do the fuel gage go from empty to full when I start the car? on 2004 Buick LeSabre

after about 5 or 10 minutes it goes back to empty. Sometimes it will come back up to half full or more then drop back to empty or up to full.

by in Germantown, MD on January 12, 2012
1 answer
ANSWER by on January 12, 2012
THERE IS PROB A RESISTANCE ISSUE IN THE FUEL SENDING UNIT. IM NOT SURE IF THE SENDING UNIT IS SOLD SEPERATELY OR NO CK WITH YOUR LOCAL PARTS DIST.