M923a2 won't crank

[wingman]

Everything was fine and now nothing happens when I turn on the master switch. I do hear a solenoid click on but gauges don't power-up and engine won't crank. Anyone else have this problem?

 

[Jbulach]

Most likely the PCB (protective control box), very common...

 

[wingman]

Is that repairable or does it need to be replaced?

 

[simp5782]

Is that repairable or does it need to be replaced?

https://www.steelsoldiers.com/showt...x-in-a-5-ton&p=2121535&highlight=#post2121535

repairable. Solenoids are found on ebay. Cole Harsee 24063. You need 2 of them.

 

[wingman]

Anybody sell good boxes?

 

[simp5782]

member Fuzzytoaster has good take outs. Southern Automotive sells new built ones for $200+. Or you can rebuild yours for about $40 to the same spec. It is pretty simple to rebuild them. Takes about 15 minutes.

 

[wingman]

Thanks so much for the help and info everyone!

 

[MKD73]

I have been dealing with the same problem. (I have power to my gauges though)
You might test to see if you are getting power at the starter when the switch is turned to start.
I chased my problem from batteries to PCB and finally figured out my starter is dead.

 

[Coffey1]

Easy to rebuild

 

[simp5782]

View attachment 725659View attachment 725660
Easy to rebuild

given this picture. One thing i would do that Floridiason has said about moisture getting in the box. Even though it is sealed. it still gets in. Drill some holes on the bottom so water can't try to stand in it.

Also after you replace the solenoids and reinstall all the wires be sure to coat ever connection with some dielectric grease or just some type of grease in general. If you want to get even better then spray everything with a dry spray lube.