Wait to start light blinking

[Dayron84]

Just wrapping up another project tonight and noticed that the wait to start light was blinking. This was hit or miss...I’ve started it several times since and it will stay on as usual sometimes and blink sometimes. I did a few searches and it looks like either faulty glow plugs or controller. I know that glow plugs were recently replaced by PO so I guess I should be looking at controller. Where is this controller?

 

[BLK HMMWV]

Almost every question you can ever have will be found in the technical manual .
This site has a pretty good TM library found at the top of the home page.
This might help you find most of the basic stuff's location

https://www.steelsoldiers.com/attachments/a1-intro-to-veh-sys-booklet-pdf.698779/

Make sure to always disconnect your batteries before working on anything electric.

 

[juanprado]

It is on the water cross over tube. Looks like a large traditional civy temperature sending unit. It needs to be matched to your control box.

 

[Dayron84]

Oddly enough everything is working fine this morning. Cycled glow plugs several times and light stays on as it should. This did happen yesterday after I did some pressure washing and degreasing so I wonder if that could could of caused this. All seems okay now.


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[DREDnot]

Mine has done the blinky hard start on three occasions. After an episode, its fine for a few months and is perfectly fine and fast starting.
I have the old Nartron yellow label EESS

 

[Dayron84]

Here’s what I’ve got. Not sure which is the more desirable


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