How do you bench test a glow plug

[clark_bailey]

How to bench test s glow plug? What ohm is correct? If 12v and ground applied what should happen? (besides getting real hot if it's working?)

 

[85Hokie]

How to bench test s glow plug? What ohm is correct? If 12v and ground applied what should happen? (besides getting real hot if it's working?)

Pure ohms test should be less than 10 ohms - actually closer to 1-2 ohms.
And getting real hot is a good way to know! You dont have to hook it all long to see or feel if working. Infrared probe will tell you quickly!

 

[clark_bailey]

tested them all while out of the block, 0.9 ohm, put them back in and they were all between 0.9-1.0. thanks for the helpful info.


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