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This is an article for H1s / Humvees but same general idea.
We havn't been but one or two degrees below 0°F, but I have started both my MVs in the lower single digits. With the CUCV, I just cycle the GPs once with zero mods to the truck. She is as the General originally made her other than using the AC Delco 60Gs. It (of course) don't fire like when it's warm, but I crank it about five seconds, getting a little fire in the hole, and not shutting the key off, I wait about two seconds and crank it over again usually firing right up and running pretty smooth. I think the PO had the IP rebuilt. Sometimes it takes a third cranking to fire but the way I burned up my GPs with a novice move of multiple cycles of the GPs, I will not even double cycle them anymore. The compression causes heat as well as the partial fires.
- most of the problems I've seen, experienced, or read about on CUCVs are traceable to someone not reading the TM and not understanding the subtle but important differences from the CUCV line to the civilian Chevy's. You will pull this truck back, and the closer you get it to stock the easier it'll be to fix later (and the more useful the rest of us will be in troubleshooting it ![[thumbzup]](https://www.steelsoldiers.com/images/smilies/icon_smile_thumzup.gif "Thumbs Up [thumbzup]"){kind=icon}
).
See if I can't narrow it down!
That don't sound too good, having that pressure. I hope it's just minor/external, but it may not be.My 1009 is starting to get me a little hot under the collar this weekend. It seems I have hit that mark where once I fix one thing, something totally unrelated starts to give me trouble. Then once I fix or figure that out, the 1st thing starts all over again.
I recently changed out the entire cooling system, radiator, water pump, heater core (on my 3rd in a month), upper and lower radiator hoses, heater hoses, cross-over tube. Everything but the engine and t-stat have been changed and yet my cooling system still gives me some issues that I am having trouble figuring out.
After the radiator chang out, I went through 2 heater cores within a couple of weeks. The 1st one blew a header seal, the 2nd had a core tube leak, the 3rd so far has been working out okay.
I have been having an over pressurization issue that I cannot seem to track down the source. I checked the cooling system for a combustion/compression leak, nothing. I just changed out the 16lb pressure cap for a 13lb to see if that will offer any relief.
The new radiator had a tiny hole for the pressure relief to the catch can, but it looked like it was way too small, as if the gasket for the cap would cover it, making it useless. So I enlarged it to the size of the nipple that goes to the catch can.
Now the truck doesn't overheat, I have checked the temp at several times to see what it is running at, it always seems to be at the highest, 190°-200°, but the hoses just seem like they are about to burst.
I went out this morning only to see a small puddle of coolant on the ground that got my blood boiling. That set the tone for the day
So, I started to look at other things, my mistake.
Wound up removing the drivers door, to replace the worn out hinge bushings. While I'm doing that, may as well do the striker too!
Oh, and I found out why my headlights keep blinking on and off from time to time, the common overload of the headlight fuse issue. So I have to look at that as well, removed added circuits from that fuse and pending an LMC conversion kit.
Just glad I didn't really have any plans for the weekend.
The only good thing is that I really made some progress on my super high power LED light bar that will assembled and installed soon, pics to come. If everything goes right with that, should be pushing about 80,000 lumens out the front of the truck, enough to scare the sun.
Anyway, good luck with yours as I pound away on mine.
This calls for a beer or 2
I went thru the same thing with the M1009 Mule and it held good for 6-7 years. It was the head gasket. As much as I wanted to be in denial I knew all along it was the head gasket. Then one blustery cold wet morning the steam jenny was running and it steamed the whole way to town and back. The sweet smell of coolant was in the air. Parked it and gave in to the head gasket and a total overhaul of the entire vehicle. But you just need to change the head gaskets and get the heads checked.My 1009 is starting to get me a little hot under the collar this weekend. It seems I have hit that mark where once I fix one thing, something totally unrelated starts to give me trouble. Then once I fix or figure that out, the 1st thing starts all over again.
I recently changed out the entire cooling system, radiator, water pump, heater core (on my 3rd in a month), upper and lower radiator hoses, heater hoses, cross-over tube. Everything but the engine and t-stat have been changed and yet my cooling system still gives me some issues that I am having trouble figuring out.
After the radiator chang out, I went through 2 heater cores within a couple of weeks. The 1st one blew a header seal, the 2nd had a core tube leak, the 3rd so far has been working out okay.
I have been having an over pressurization issue that I cannot seem to track down the source. I checked the cooling system for a combustion/compression leak, nothing. I just changed out the 16lb pressure cap for a 13lb to see if that will offer any relief.
The new radiator had a tiny hole for the pressure relief to the catch can, but it looked like it was way too small, as if the gasket for the cap would cover it, making it useless. So I enlarged it to the size of the nipple that goes to the catch can.
Now the truck doesn't overheat, I have checked the temp at several times to see what it is running at, it always seems to be at the highest, 190°-200°, but the hoses just seem like they are about to burst.
I went out this morning only to see a small puddle of coolant on the ground that got my blood boiling. That set the tone for the day
So, I started to look at other things, my mistake.
Wound up removing the drivers door, to replace the worn out hinge bushings. While I'm doing that, may as well do the striker too!
Oh, and I found out why my headlights keep blinking on and off from time to time, the common overload of the headlight fuse issue. So I have to look at that as well, removed added circuits from that fuse and pending an LMC conversion kit.
Just glad I didn't really have any plans for the weekend.
The only good thing is that I really made some progress on my super high power LED light bar that will assembled and installed soon, pics to come. If everything goes right with that, should be pushing about 80,000 lumens out the front of the truck, enough to scare the sun.
Anyway, good luck with yours as I pound away on mine.
This calls for a beer or 2
Minor failure causes a lot of work. But in the end it is worth it. I hope I helped and not deterred. Just trying to help. Have a Good Day. if I were closer I would assist. At least give you a set of heads to get done up front to avoid as much down time. That is how I planned my head gaskets change. you see where that went? Take care.
