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Thread: block heater?

  1. #1

    Default block heater?

    Absurd this may sound. Is there any way leaving your block heater on to long on a cold winter night could do damage to your vehicle? 99 silverado

  2. #2


    I plug my 99 Savanna in when it drops below -20c. I've never had a problem. (Overnite)


    2007 Ford E250(Work van) (Ya, Ya, shut up!)
    1996 GMC Sierra SLE 1500 5.7L/4L60E

  3. #3


    I know I am late to the thread but I use to live in Fairbanks, AK and the truck was plugged in 24hrs. Really the only time it wasn't was when it was running. Had no problems.

  4. #4
    Jr. Apprentice SlimyAvocado's Avatar
    Join Date
    Oct 2007
    Southwestern CT


    I left my blazer plugged in for problems...
    waste of electricity, but no issues...
    Fleets and bus companys leave thier trucks plugged in over the weekend...Only thing I can see happening would be shortening the life of the heater.
    2002 Silverado LS 4x4

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