OK so I have a hard to start issue in the cold. I have 12.75 volts to the glow plug
bar. How do I check the operation of each glow plug
? I have pulled the bar off and tried to check the resistance across each plug. I placed the multi meter on the center conection (threaded for the power bar) and then grounded out to the block and got nothing. I then tried grounding out to the outer ring of the glow plug. This time I got nothing on either of the outer 2 plugs and a varying number on the centre one.
Am I doing this correctly?[