2008 volvo D13 coolant temperature gauge isn't working.

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by smurrell313, Apr 15, 2022.

  1. smurrell313

    smurrell313 Bobtail Member

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    Apr 15, 2022
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    Help pslz!! Coolant temperature gauge isn't working at all!! Doesn't move. Coolant temperature sensor replaced, with fresh coolant and filter. Fan is stuck on, so i was gonna replace the solenoid valve next and see if that helps. Good heat, but maybe the thermostat is stuck open? However, even after running the, d13 with 1mill miles all night, the gauge doesn't budge!! All the other gauges are working perfectly. Any suggestions?
     
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  3. North Pole Nightmare

    North Pole Nightmare Heavy Load Member

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    Dec 15, 2021
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    Could be many things,fan clutch might be locked up,wiring,solenoid,check the air coming out of the solenoid.Unhook the air line,turn the key on.See if you have air pressure going to the clutch.Turn key off and the air should stop.If that's working then the fan clutch is locked up.
     
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