1989 Other Buick Models Exterior gas gauge

1989 BUICK
80,000 MILES • 6 CYL • 2WD • AUTOMATIC
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JAWS0813
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  • 1 POST
my brothers car's gas gauge does not work right he will run out of gas and it could still read a quarter tank of gas. i was wondering how hard it is to wire up a external gas gauge and were i could get instructions. thank you.
Sep 23, 2009 at 8:07 PM
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MHPAUTOS
  • CAR REPAIR CONTRIBUTOR
  • 31,937 POSTS
Hi there,

remove the gauge wire from the sender unit and touch to earth, the gauge should go to full deflection, if so the gauge is ok and the problem will be the sender unit in the tank, this is normally the cause of this problem.

Mark (mhpautos)
Sep 24, 2009 at 2:52 AM
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