Glow plug question

[DeuceNewb]

My hmmwv glow plugs are no longer working and I'm frustrated. At first, the light would blink the entire time during the wait period, but once it stopped flashing the truck would start, although running rough for a few seconds. I assumed and was told this was because of some bad glow plugs. I was told once I replaced all the glow plugs it would stop flashing and go back to normal. I replaced all 8 with new ones, and it made no difference. Still flashed but when the truck started it was running smoother than usual, so I assumed I would be alright. Drove it home and the next day went to move it and now the glow plug light comes on for only a fraction of a second, one tiny blip, then nothing. And the truck no longer starts.

The box under the dash has a yellow sticker that says KDS controls engine electrical start system with only only wire plug. I would swap it out with my other truck but that one is a different one with a smaller white sticker and an additional circular port with nothing attached to it.

 

[juanprado]

My wait light would only stay on for a nano second and barely visible. I took a parts gamble and just changed the glow plug temp sensor with a used take out from epay. Works like it supposed to and easy fix with an 1-1/2 socket. All is good. Mine came from Unatil? with a Make offer option . There are all over epay from $25-60

There is a specific troubleshooting flow chart in the tm but I just went for it as many threads and many were solved by changing out the sensor. YMMV.

A beer is only required if successful

 

[snowtrac nome]

sounds like a sensor issue there are different glow plug controllers based on what box you have the kds box I believe uses the yellow band controller. Also ensure the engine is properly grounded, the 6.2's and 6.5's were notorious for dissimilar corrosion on the bolts running through the intake manifolds.