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Ahh the case of take it apart and put it back together and everything works. Glad you are back in business.

Rats. My yellow label makes a clunk noise (solenoid energizing) when I first turn it on. Not sure I’d the Silver does or not, no experience with them. I guess I would check all other items first (GPs, TSU, Connections & Battery Voltage). I have the ohms values of a good TSU @ 80 DegF if you...

Sean My KASCAR Non-Swelling Glow Plugs Ohmed out between 2.0 -2.6 Ohms I have a Yellow Label KDS Box CR2695 and Yellow Band Temp Sending Unit (TSU). Did your Volt Meter pulse back in forth (indicating that the GP's wire cycling on/off)? From your post it doesnt sound like it.

I forgot to add, that when I installed the new GPC the plugs cycled on.

Been away for a while. The HMMWV was inside, I am guessing the temp was around at or below. I didn't start the HMMWV as at the time I wasn't sure if the glow plugs would turn off.

Thanks! yup finally got to trying the new TSU. HOTDOG it was the TSU. I called KASCAR and they told me the 14 flashes of the wait light was a code for glow plugs or TSU. I asked if there was a list of codes that corresponded to the flashing light and they said if there was they didn't know...

Thanks have the TSU ordered and will try that first. I will post the results hopefully later this week.

Just back from the barn. All glow plugs look fine (no swelling), but I would expect that from the Kascar 007 Non-swelling plugs. Here is the Ohm check #1=2.0, #3=2.4, #5=2.5, #7=2.5, #2=2.6, #4=2.6, #6=2.2 & #8=2.0. I am not sure if they are in range or not? The TM states 1-2 Ohm but I...

TheHummerguy, Thanks so much for the reply. This has been really bothering me. I have some work to do. I am still confused why would the GPs fire w/o the TSU connected; Is this a "limp home" mode? Or do I really have a bad TSU? If I am following your prior statement then if the TSU is bad...

Update - After sleeping on it I am thinking the TM was written with for the old Prestolite and Glow Plug Controller. With that said my confidence level that the issue is the Temp Sensing Unit is about 80%; however I was never one to just swap out parts. I would like to be certain before...

Ok so I went to start the M998 tonight to fill up the tank before tomorrows trail ride. When I turned the Rotary Switch from Stop to Run I heard the "clunk" from the KDS Box but did not see the Wait to Start light come on. The Volt Meter didn't pulse indicating the glow plugs were firing. I...