1987 Other Volvo Models

1987 VOLVO
13,400 MILES • 6 CYL • 2WD • AUTOMATIC
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JOYBIRD
  • MEMBER
  • 1 POST
1987 VOLVO 780 COUPE/RE:INTERIOR GAUGES NOT WORKING ie VOLTAGE,GAS GAUGE,SPEEDOMETER WANDERS-REALLY THE ONLY GAUGE THAT WORKS IS ODOMETER.ANY SUGGESTIONS JOYOUS
Aug 8, 2008 at 9:55 PM
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KHLOW2008
  • ✓Experienced Mechanic
  • 41,812 POSTS
Hi JOYOUS,

Check the voltage limiter, it resistance should be 10 ohms. When connected to 12v battery, it should supply 9.8 to 10.2 volts.

The speedometer wandering could be due to speed sensor or its wiring circuit.
Aug 16, 2008 at 5:51 AM
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