my block heaters have always made a sound - i'd assume they all do as you are basically using electricity to heat something.
A battery blanket can also help and is easier to install than a block heater. I'd goolge installing a block heater first and before starting make sure you can finish the job. It is not fun working on a vehicle in this type of cold.
Dealer would likely be the most expenisve place to get it installed.
|