1988 Volvo 240 fuel

120,000 MILES • 4 CYL • 2WD • AUTOMATIC
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MIKKIDB34442
  • MEMBER
  • 1 POST
need diagram to fix gas gauge on gas tank
Jan 26, 2008 at 2:11 AM
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BLACKOP555
  • ✓Experienced Mechanic
  • 10,386 POSTS
first you have to find out weather the gauge/wiring harness is bad or if its the sending unit.

to do so take the signal wire and ground it on the frame, tank should show empty, then put it on +12 voltage, tank should show full, if not either the harness is damaged, OR the guage is faulty.

if it functions properly, the sending unit will need replacement.
Jul 17, 2008 at 11:09 AM
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