block heater problem

[1990dieselguy]

i think my block heater might not be working because when i used to plug it in it would sound like there is something running now there is nothing. how do i test it and see.

[nathan]

put a DVOM on the end of the plug and read how many OHM's or resistance their is. An open circuit will not display anything.

[1990dieselguy]

i checked it out today and when i tested it nothing. what could be the problem the cord or heating element.

[SuperCrutyPS]

Have you got under there and felt the block? Warm? Cold? Does your dash temp gauge show any temp after it's been plugged in for a while?

[Chop]

When i used mine the cord and exstension cord felt warm to the touch after so many hours.Also when you hook it up you should see a small arc which means there is a draw.A simple test without special equipment.

[1990dieselguy]

its cold. and the temp gauge showes nothing

[SuperCrutyPS]

May need to replace the element in the block.

[Chop]

I just found one on ebay fits all ours 7.3 for around 67.00 dollars and it is a two piece,a cord and the element.If you decide to replace element,be ready to catch coolant.It looks as though you could remove cord and bench test and or repair if neccessary.Just a thought