How to Remove Problem Glow Plugs & Install New; GM 6.2 Diesel Engine M1008 CUCV Truck

[@DIYWilly]

Wow those are hard to get too. Sure glad I only have 4 glow plugs to worry about. But with that said 2 are behind the injection pump. So changing them requires removal of the pump. I changed them pastime I changed the head gasket. I use the same wire strippers. They work great 👍.Thumbs up to Jared for completing this job.

[@SpACeCruizeR2o3]

that truck is sick willy im gonna say something watch lol

[@KentuckyFriedFixes]

Oh man, I'd hate to have to pull an injection pump to replace glow plugs. Yikes! Thanks for watching!

[@dw7094]

A lot of "newbies" to the world of the 6.2L and 6.5L diesels. We had all of this stuff figured out in the 80's and early 90's, and we did it without KZbin!

[@KentuckyFriedFixes]

True DW! Back in the day you had to pull out a repair manual or figure it out on your own. I'm convinced that without the internet, modern day society would collapse.

[@herrprepper2070]

I just changed out all 8 glow plugs on my 1984 GMC 6.2. I sprayed each one with Kroil and let it set overnight. They all came out slick as a whistle.

[@KentuckyFriedFixes]

Good deal! There was only one on this engine that was swollen enough to warrant use of the glow plug puller, the rest came out fairly easy. It seems like there's always that ONE that wants to be difficult. If people would only change them out every now and then I think nobody would have any issues. But, when you buy a used truck, you never really know what you're getting. Thanks!

[@DIYVariety]

Got to like the snap! Good to have checked with cold weather coming

[@KentuckyFriedFixes]

It made a big difference on cold starts. Thanks for watching HR!

[@gravelyman]

Good video especially with colder weather coming 🔧👍

[@KentuckyFriedFixes]

Thanks Art! It needed done on this one for sure!

[@LarryButler-kp3se]

In my Union City Body step van glow plug access is easy. Remove the plastic wheel well shroud and go straight in over the tire.

[@KentuckyFriedFixes]

We had lots of step vans in the Air Force. Loved to work on those things! Pull that engine cover, have a seat and almost anything can be done while seated (or laying down). Great memories. Thanks!

[@herrprepper2070]

An exploding glow plug cost me the original 6.2 motor in my 1984 K2500 about 30 years ago. I replaced it. 258,000 miles on the new engine as of today.

[@KentuckyFriedFixes]

Yikes Prepper! Another good reason to replace glow plugs as scheduled maintenance! 258K, it's just getting broken in. Thanks!

[@franksoutdoorlife]

Man I've worked on diesels for eleven years and did not know there are pullers for glow plugs. lol.

[@KentuckyFriedFixes]

I've never owned one of those glow plug pullers but now I know where I can borrow one! 🤣 Thanks Frank!

[@RMM1983-ec4pg]

I've got a manual push button setup on my glow plugs M1008 How long should I hold the button before cranking? I'm in Florida

[@KentuckyFriedFixes]

Depends on the temperature. IMO, normally a few seconds is long enough for good glow plugs to heat up. (maybe 5 to 10 seconds) If your glow plugs are good, that's about all the time you'll need to cycle them for a cold start. If you have one or two bad glow plugs chances are the engine will be hard to start and you'll only swell the remaining glow plugs with a longer cycle time trying to compensate for the bad ones.

[@FabianTrujillo-hw3wd]

My m1008 is going through a starter every 6 months ! Even heavy duty starters. Could bad good plugs be burning the starter out so much ? Any help would be great . I was told could be a ground wire

[@KentuckyFriedFixes]

Good battery cables and connections are important. Small cables will not allow enough amperage to the starter causing issues. If the starter is cranking too long to start the engine it's likely getting hot. One overheat cycle can kill a starter so you can imagine what happens if the starter overheats every time due to a hard starting engine. New glow plugs will definitely help a hard starting diesel engine spring to life quicker. Faster start up means the starter wasn't overworked and didn't get hot. There's also an issue with the mechanical fuel pumps on these allowing fuel to bleed back thru the line when the engine is turned off. That can also cause hard starting as the engine has to crank long enough for the mechanical fuel pump to pressurize the fuel line going to the injector pump. There's another video on the channel about installing a one way check valve at the fuel filter to solve that issue. To start properly these engines need: 1. Good batteries and cables. 2. Good glow plugs, check or replace every 30K miles. 3. Good mechanical fuel transfer pump. 4. It's also a good idea to install a one way check valve at the fuel filter to correct any fuel bleed back issues in the system. Hope this helps.

[@FabianTrujillo-hw3wd]

Thank you 🙏 so much !

[@kriztofer9968]

Hello, great video!!! By any chance do you have a link to the glow plug puller in this video? TIA

[@KentuckyFriedFixes]

Jerred purchased the glow plug removal tool from the Leroy Diesel website.

[@kriztofer9968]

@@KentuckyFriedFixesAwesome, and thank you for sharing!!!

[@KentuckyFriedFixes]

@@kriztofer9968 I updated the description and placed a link to their website. Thanks for pointing this out.

[@DumbCarGuy]

Are all military cucvs and the other military trucks always Diesel of did they make gassers too?

[@KentuckyFriedFixes]

Hi Car Guy! As far as I know, and I was in the USAF when these things were introduced, all of them had the 6.2 diesel engine. The Air Force did/does have gas powered trucks too but those weren't the CUCV. I'm sure there are plenty of gas swapped versions out there though as the transmission used is a 400 Turbo and a 6.2 diesel replacement engine isn't common or cheap. Thanks!

[@DumbCarGuy]

@@KentuckyFriedFixes I just remember back in the 90s everyone wanted that 1-1/4ton Chevy but my ears don’t recall what sound they made as in diesel or gas

[@SpACeCruizeR2o3]

Thats a Badazz RiG Boss no Questions about it id fricin go all winter wit that and add a camper like a tacoma or something My dad had a Blazer back in the day and had the undercarriage all chromed out and airbrushed the tazmanian devil on the gastank and tinted on the back windows and my mom stole it and wrecked it smh

[@DIYWilly]

Mom stole it??

[@KentuckyFriedFixes]

I think he's got some plans to do some more work on this one. I liked the CUCV Blazers. The Military was into SUVs before they were cool!

[@SpACeCruizeR2o3]

@@DIYWilly yea dude she stole my pops blazer and wrecked it high on drugs it was a sick blazer willy u wouldve loved it all chrome underneath 4x4 all that air horns cbradios loudspeakers plow hitch

[@SpACeCruizeR2o3]

@@KentuckyFriedFixes hell yea im gonna try and find a pic it was brown and tan with the floral pinstripes in like a cream going with the tints and tazmanian devil graphics

[@DIYWilly]

@@SpACeCruizeR2o3 That’s crazy! Sounds like pops had a nice Blazer!

[@fabo1219]

😂 perfect!

[@rawbsworld6604]

Bad lighting, grainy camera angle!!! 🤦‍♂️ that’s it!!! I have to draw the line someplace! 🙄 … 😂 naw very informative 👍 😎 I never dealt with automotive diesels 🤷‍♂️ just my lot in life 🤪 …. ✌️🤙

[@KentuckyFriedFixes]

LOL 🤣 tough task to video! Thanks Rawb!

[@alshaw9420]

had my 1982 6.2 since 1988 truck runs like brand new

[@KentuckyFriedFixes]

The 6.2 diesels are great engines! Jerred has his out and apart at the moment for a rings/bearings refresh. The internal parts still appear to be in great shape though, even a nice cross hatch remaining in the cylinder bore. He originally pulled it because it developed a dead miss, that turned out to be just a burned valve. But, since it's out, new rings, bearings and gaskets/seals regardless! Thanks AL

[@alshaw9420]

@@KentuckyFriedFixes thnaks man hey one more question what oil do you run in 6.2

[@KentuckyFriedFixes]

@@alshaw9420 Hi AL! Jerred and I have a difference of opinion on engine oil. He likes Shell Rotella 15W40. And I agree it's a good diesel oil, AND the internal parts on his engine looked GREAT, but I personally like Mobil-1 full synthetic 20W50 for Summer and 10W30 for Winter in everything I own. Maybe I'm wrong but I'm nearing 360K miles on my 5cyl Hummer H3 and I don't think luck had anything to do with it. Thanks AL!

[@alshaw9420]

@@KentuckyFriedFixes 360 k holy cow