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Hummer H2 Says low coolant but no coolant is being lost

Old Sep 1, 2023 | 12:55 PM
  #1  
Tank4354's Avatar
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Default Hummer H2 Says low coolant but no coolant is being lost

Just started doing this on start up of the car it'll say "low coolant" I check the reservoir and it's full and hasn't leaked at all and the car reaches OP temp normally and holds there normally. My H2 is a 2003 with 175K anyone know what might cause this, bad sensor?
 
Old Sep 1, 2023 | 01:59 PM
  #2  
hummerz's Avatar
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Disconnect the switch & recheck "low coolant" warning.


 
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