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That's is an interesting point! Diesel had a nice price inflation due to the low sulfur regs as well...certainly not winning the battle on the consumer end. The environment is cleaner but it would be nice is the gov't and fuel industry made fuel that actually didn't kill my engines. Regardless...

Then seal it up with new o-rings, bleed it, ship it :)

That Olds 350DX really killed the entire roll out of light duty diesels in American spec cars. Mercedes never had an issue, it always comes back to the Detroit iron having crappy engines. Everything in the 80's was noisy and smelly, most were slow too. Ford had some serious issues moving on from...

Yeah, I get outside air from everywhere except where a piece of glass exists. Start going through all connections on the firewall with sealer. Open up your door panels and make sure the plastic barrier if it has one isn't ripped. These are 30 year old bare bone trucks. The nice thing is in the...

Why can't the owner suck it up and have it towed off base? Unless you are getting a smoking deal, I don't see how anyone could own a truck that doesn't start, have it parked on a base where no one can work on it, yet it needs to leave on a tow truck. Seems like a catch 22. If you stole it, then...

4.10 to 4.56 is the split on the carrier. I wonder if someone rebuilt the rearend with a set of thin gears? A lot can happen in 30 years...

I want to say that the pickup is a hall effects type which requires power and ground (not sure if 5v or 12v) which then pulses a signal line on and off. You will need a matching tach that accepts it or get a Dakota box to convert it. I'm pretty sure that is how it works off the top of my head as...

I'm not sure if this is in English???

I always find the "6.2 is a converted gas engine" conversation amusing. My brain immediately goes, "you suck at math, can't recognize that 5.7 and 6.2 don't match, and I'm stabbing you in the head inside of my head right now".

I would limp it to the nearest WalMart or similar parking lot or a back road. This is an easy fix. The only thing I could see going wrong is your batteries if they are weak won't survive bleeding.

All of those 80's diesel engines are pretty close in power and reliability. I would probably lean towards the 7.3 (I guess it would have been Navistar branding at the time) in terms of best light duty diesels. Keep in mind that the Cummins is not in the same class at all. The 7.3 is still a...

Thats actually a really nice Stanadyne Fuel Manager (FM100) series filter. Could also be the knock off Napa version...same stuff. I would reseal it, bleed it, and run it. May as well change the filter as well.

Watch the movie Gung Ho...classic flick from the 80's. You'll like it, Japanese car company manufacturing in old Detroit plant. Ribbons of Shame! https://www.youtube.com/watch?v=ykk5Zoll46Y

OEM all the way...yeah maybe if it was made in Japan where if it fails, they cut the engineers hand off for designing it that way...

Yikes Let's not start a holy war over glow plug preferences. There are advantages to different setups, each person has their reasons to run it a certain way. I think the OP should be informed, perform his own due diligence, and take it from there. I'm not sure this subject matter is something...

I would bet you have a faulty blower resistor block which is pretty common. The blower switch would be my next guess.

You really don't have to. Dial it into to about 18" of vacuum at closed throttle then road test it. You can tweak it from there. It isn't rocket science and the gas engines don't even have that adjustment because it is manifold vacuum.

Ruling out any internal issues, you are going to boil it down to a problem with the vacuum signal (pump, throttle valve, lines, modulator) or your governor valve sticking/malfunctioning. You should get a nice steady source from that vacuum pump so I think you found the problem. Just to be sure...

Agreed Only the lucky MV owners have the luxury of having a spare 24v vehicle to jumpstart a dead one! Worst case is just install 24v HMMWV glow plugs, bypass the card, and install a manual pushbutton if you are so worried about it. I would rather modify the system that way than risk running...

I agree, a 12v GP being fed 24v will probably not like that too much. This is just another case where any new CUCV owner should either be checking for a resistor bypass or doing the mod themselves. Unless you are trying to stay 100% original and actually plan on jumpstarting your dead Cuck with...