thermostate

  1. M

    What is normal coolant temperature? My heat is lukewarm.

    I own a 2004 Buick Lesabre Limited. I have noticed that when I am at idle, my heat is lukewarm. When I am driving and the RPMs are up, my heater’s air temperature rises but is still not what I would consider hot. My coolant level is and has been normal. What I noticed was that my coolant...
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