So, it is below zero out here right now. Yesterday, my truck's 'wait to start' light stayed on longer than usual. It was plugged in. Normally when it is plugged in the light is only on for 2-3 seconds. Yesterday it was on for about 30 seconds, but the truck started, just rough to start. Today the truck won't start. I run an antigel in my diesel, but -16 is cold enough, I would think, to freeze diesel with antigel in it. So I took a voltmeter and tested the plug to the blick heater. Nothing. Pulled the cord off the truck, plugged it into a wall socket, and tested the end that goes into my block heater. Registered everything just fine. I don't think the problem is the cord. Is it a better bet that my block heater is out or that my diesel is gelled? Is there a fuse or something on the block heater that could have blown? It's not the extension cord because it has a light on the end that goes out when it isn't getting juice. Thanks for any help.

 

test block heater with ohm meter by placing a lead on each plug prong and see if u get any resistance if not heater is bad i bet that is what is wrong

 

I figured it out. There was a short in the cord right at the male plug end and I replaced the plug with a cheap end and it is working again.