Question about 2003 GMC Sierra C/K3500
I have a 2003 GMC Sierra Duramax and the temp in Michigan today is
-5. Had the block heater plugged in but it isn't working. I am assuming it is fused. Where is the fuse/breaker? I do have power to the plug.
There is no fuse on a block heater. It is an extension cord with a resistor (element) on the end (see photo. If it not working, the resistor (coil) has failed. A new block heater is required.
Before replacing, however, check the outlet and/or beaker the outlet is on to see if it has tripped.
I too live in s/e Michigan, and it was -19 this am. No block heater can keep up with these extreme temps.
Posted on Jan 16, 2009
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Posted on Jan 02, 2017
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