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Sounds like glow plugs. All plugs working? Solenoid triggering? Still 24v? Check valve doesn't help. I converted one of my CUCVs to manual button for glow plugs. 10 seconds summer, 15 seconds winter. One was converted to 12v by local FD. Couldn't get started when they needed it. They...

No numbers, just tell them fuel pressure switch in CUCV filter base. Should have O ring and spring clip to hold in place. Also, all other Stanadyne 80 parts can be ordered from local Stanadyne dealer, or they can ship them to you. They have the O rings and bleeder valves etc.

If you remove filter from base you should be able to see switch and and if it is leaking from there. Again, this is for hard starting in both cold and warm weather. If leaking is not from pressure switch then you may be right. Of course the easy way to deal with it is replace military filter...

I got mine through Owens Export Owens Export Service Vehicles Parts & Surplus Electronics 818-772-0806

Replace fuel pressure switch in Stanadyne 80 filter base. Switch is only in military CUCV's. Part of Ice system. Either replace fuel pressure switch, its round and located under square filter. When bad it may or may not be leaking fuel. Also when bad, it will feel and sound like fuel fuel...

I would check glow plugs and the resister on firewall. I had replaced my glow plugs first and removed wire from end of resister and moved it to the 12v connection block close by. Last I would check injection pump pressures.

If you are still using orig. Stanadyne 80 fuel filter base, the round fuel sensor switch under the filter is causing it. It is located in the filter base. Only MV version has it part of ice system. civy does not have it. $10 part and your hard starting problems go away. I tried check valve...

Just a reminder..... if your cucv is hard to start in both warm and cold temps, hard to start after driving, it is your fuel pressure switch. They crack and leak fuel (or not leak) from age etc. It round plastic with 2 wires and a spring clip holding it in place under the fuel filter in the...