1992 Pontiac Grand Prix on this car

Tiny
PICKUPMAN65
  • MEMBER
  • 1992 PONTIAC GRAND PRIX
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 209,000 MILES
The temp gage pages out when u go to start it. Why is that & what car I do to fix it.
Thursday, February 4th, 2010 AT 10:00 AM

1 Reply

Tiny
JDL
  • MECHANIC
  • 16,098 POSTS
Welcome, the temp switch is a ground for the gage, the more continuity to ground, the higher the gage reading. The hotter the coolant the less resistance. Possibilities, the gage itself has a problem-- the wiring circuit has a fault-- or the switch has a problem. On the 3.1 and 3.4 the switch is located on backside of engine, driver side, one wire connector, dark green. Unplug it, see if gage acts any differently?
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Thursday, February 4th, 2010 AT 10:24 AM

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