84 Chevy 6.2 Lives Again! Fix the Fuel Leaks. Part 3 of a Series. 

“IT’S NOT GOING TO START” cracks me up every time.

You have inspired me to get my 82 6.2 chevy running after 4 years.

I bought my 84 GMC K2500 new off the lot and she’s still running. Replaced the original 6.2 with a rebuilt at 250,000 miles when a glow plug exploded and brought disaster. A great truck.

you know your old older or mature when you get good steady stream you sure get proud of the ability

"Cramping!" Oh God Jeff, been there and bought the t shirt! Todd the retired trucker.

Yeah, whoever invented the cordless impact driver deserves a Nobel peace prize. I don't have a Milwaukee, rather the latest Craftsman brushless which is basically a DeWalt. I absolutely love the cordless impact driver.

Those famous last words Supper. Glad to see you back making videos Jeff.

"Supper! (did you hear me?) "Yep"!

Praying your healing continues. Look forward to the next installment.

"It' not going to start !!!" Hahaha! I hear you brother. People that stupid should not be allowed on the streets. Another great video, Jeff.

I never get tired of watching Jeff do stuff. Keep get'n better Partner xCop P.S. "SUPPER"

THE 1 REPAIR WE ALL DREAD On a 6.2L 5:55 ... lol I love that "feels like 12 lbs and 250 on the lower back!"

Some people just can't understand when something just ain't going to start. GBW You 2 too!

Just wanna start by thanking you, this is my first diesel and out of all the forums and videos available, yours have been the most informative. Just the lil nuances on how to get the injector lines off the plenum and the fuel hose and lift pump tricks are worth their weight in gold for a newbie like myself. Im an Armorer by trade and am used to working on firearms so this is new to me. Thanks again and keep at it!

Quote.... "Oh That Wasn't Good" I feel that same way every time I work on something.

I hope all is going well Jeff, can't wait to see you back at it

I really like this truck, keep it up Jeff, looking forward to when you can get back to working on more.

Jeff,I bought an 85 gmc 3 months ago and at 60 years old getting inside the engine bay sucks.so I'm with you there.take care

Jeff, get one problem fixed and have to go back to another. Wishing you all the best on your healing and recovery!

Thanks for the videos on the chevy 84, helped me a lot in the last days, as I changed my fuel filter I send air in my system. With your videos, I fixed my problem! A big thanks from Canada.

Cordless impacts sure are nice to have.

Glad to see u r ok . This will keep you strong.

Love these old trucks. Been working with them for a long while and own a few and even more 6.5 turbos, Two of which are custom putting out roughly 300HP.

Sorry but I had to laugh about cramping , possibly hooking the fuel pump backwards ! I've been there done that ! Praying that you're healing well !

Hope your ankle is healing up good Jeff glad to see your videos are on again take care of your self

Thanks Jeff, Don't cha love fixing other peoples fixes?,yes my knees were hurting watching this Central California Watching

My grandpa had the same truck.. Drove it into his 80's. Taught me drive in it.. Cut firewood.. Many memories. He died a few years ago.. And grandma gave it to me. It's sitting on the farm.. Needs some work. I hope to have the opportunity to restore it someday.

Like that work light. Is that what i think it is? That's the kind of light i need for my aging eyes.

Good to see you Jeff take care buddy

Worked on so many of these back in the 90’s so many injection pumps on the 6.2 and the 5.7 oldsmodiesel. Now I kind of want a 1/2 ton 6.2 to LS swap or a G body diesel. Yay California smog laws.

Great work ,now all I get from the wife is honey I am eating,? Forty years of marriage n many years working on junk.LOVE IT , thanks Jeff, God bless y'all real good.

I'm old enough to remember when "having a Milwaukee" made things better for the mechanic but not by speeding the job up! I believe it actually slowed things down, but the mechanic was feeling no pain!

Well it runs. Now its just a process of elimination, replacing lines, then fuel pump, and it's fixed!!

Sees leaking fuel pump "We are going to pretend we didn't see that and do the right thing and ignore it...".....lol

men and his truck and leaky hose it beauty

You need a over the engine creeper. It is a common ladder/platform that i see used all the time on trucks. Makes it much easier to get to the back of the motor.

Just found your channel today, feel like someone's holding a mirror to my face, the way you go about things.... Subscribed!

I've worked on many 6.2's and they are always uncomfortable to work on, my knees were hurting just watching you lol. The injector lines are glass lined internally, if they get bent they break up inside and will clog things up.

Oh yeah? Well I've never been this old before. Not as young as I used to be, but older than I was.

Jeff hope you are still getting better.

I need to get my 6.5 back. Had that air bound sound in the past

Hope you doing well man

start it up check the pump for leaks the throttle shaft seals always leak.

those ole 6.2 s are tough motors

Finally updated to a battery impact. Next will be a power ratchet. Makes it so much faster.

I once bought a car that started like that. Rrrrrrr..........Rrrrrrr..........Rrrrrrr. After several slow cranks, it would fire right up. Always between 1 and 4 rrrrrrrs before the good cylinder came onto the firing stroke and away she went. Got it home and found the problem - the battery was drier than the Atacama desert! Several litres of distilled water fixed that, and that battery lasted another 2 years. Never had a problem with the starter motor either.

Singin the cold diesel blues!

Hey Jeff I enjoy watching your videos and I hope you are doing well.

Jeff now's the time to go with a hi rise and a Holley double pumper.[ Kidding]

Hi Jeff, Got any stickers? Glad to see you are out and about!! Take care Buddy!! JJ

Dinners ready you can get back at it later

Fuel lines are fairly important to engine operation. I bought an old IH tractor from a guy who told me of it's quirks the best he could. He said never leave the fuel shut off in the off position or I'd have to bleed the injector pump and lines. I never had that problem, but I noticed I could never get consistent full throttle speed. Plenty of power, but it would drag down to 1300 or 1400 rpm. Everything leaked on it. Everything. I thought it was a hydro line leak coming from a connection under the fuel tank. One day I parked it and noticed a gusher leak there...turns out the drip had been a cracked metal fuel line all along and was now draining 11 gallons of diesel out pretty quickly (lost about 3 gallons in the time it took to run to the shop and grab an empty fuel can and funnel, and a clean bucket because my one diesel can was only 5 gallons. Could have been worse. I fixed the line and the engine speed problems were gone also. I believe that was where he was getting air in the system before as well. Four years ago...still starts and runs like a champ. Long live the BD154 diesel engine!

Thats true love did you hear me.i would get god dam did you hear me

The joys of a 6.2 lol, gutless wonder, it was only one step above an Olds 350 diesel, back in that era the 6.9 International was a better engine.

Yup , those can be lots of fun ! :)

No ya don't say it's not going to start Ya tell em the definition of insanity, doing the same thing over and over again and expecting different results. Or voting for the same politician over and over again and expecting things to get better. Hey get your order. Number 2 pickup Hey number 2 pickup He keeps hanging up Okay number 2 fuel pickup now or never, last call. Good stuff Jeff and yeah the knees ain't what they used to be. Happy Motoring.

ruurt ruurt ruurt......then the starter lets all its smoke out. next thing they say is "just my luck! dead batteries!.....they replace the batteries and it still wont crank over.... "huh.....i guess i need a starter too?"

Well, you almost saved the cost of a new fuel pump. I'd have tried the same thing.

I get scared removing intake manifolds and plenums, removed one on a ford 4.6 too late to go to the parts store, saw a knock sensor that I knew was going to screw me later but I needed the car the next day. Week later it was off again to replace that same knock sensor.

"Dont you worry about a thing" Haha

i had a '94 6.5 exact same issues, every fuel line was rotted INCLUDING THE ONE UNDER THE INTAKE PLENUM ... lol on the plus side they are not too difficult system to work on, mine had a electrical lift pump on the frame under the driver side door, had to be replaced every 2 years.

That's possibly a replacement motor my buddy's 6.2 diesel doesn't have valve covers like that but honestly they could have just swapped out the valve covers so check into it you never know..

yep yep you know what they say.... if it can leak... :P

I have never cranked that much on a diesel. I usually crack the injector line loose and bleed them. But with the diesel we get now is does not stay good like the old diesel. I always have trouble with my ford if it has sat for a few months.

Unfortunately, all my 6.2's have been in Vans. lol So you think getting to that is a pain. Actually, I think I'll just shut up now because once you get the dog house off it is all spread out right there for you with the filter being in the back. Well, it used to be in the back. I mounted it underneath because I absolutly loath removing the doghouse.

Did the high idle solenoid get disconnected? That circuit also activates a timing advance to assist with starting the engine cold.

Awesome vids thank you!

I have a 83 k20 6.2 diesel you have any advice for leak at fuel injector line the o ring to fuel injectors

After the second ruurt, I usually give up,

I'd have replaced it with a stainless line since it had been chewed on by a rodent. That's just to much work for a minor repair, to not spend $18 instead of $5 for a fix. Labor is much more valuable these days not to mention, you may have to buy intake gaskets everytime you replace it. JMO

Is that truck for sale yet?

Part 4 replacing fuel filter and more fuel hose ?

should've started it without the intake on, sounds like a steam engine then. Looks like that engine has been replaced too. cheers

Does the goodwrench sticker on the valve cover mean this is a remanufactured engine? I've seen those stickers on GM remanufactured gas engines.

Is this the model GM diesel that had the meter pumps go out because they got overheated being to close to the engine block ?

Those old 6.2 are good motors. It looks like it only has 47 ,000 miles on that truck. They paint and emblem still on valve covers being a delivery truck it could be. Those damn mice will DESTROY a Vehicle. Its Sad what they do

Put a new filter on before even attempting to start! in part 1! Part 4 is here: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-gZui8CJjQqw.html

it looks like a person can put an electric fuel pump in series with a manual fuel pump, is that what you did? I am having air in fuel system been fighting it for 4000 miles. I thought I had it fixed it ran for about 3000 miles then sdid it again i fixed it again, or so I thought.

Hello Jeff

Typical small fleet vehicle right there.. every fluid on the truck could be leaking, half the tires are almost flat, and the brakes were shot 500 miles ago.. but as long as it can make it to one more job site, its good to go... lol

Jeff is still young

I would replace it with it's Cousin the 455 Olds Engine from a unloved Junker!!!

Is it 149 or 249k miles?

fuel looks awfully thin?

Hay that is a goodwrench engine...that is not the original engine.... if interested the tube looking thing on the right ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-B6KGt7Ib-NI.html is the glow plug controller. They are junk. I was changing mine every 6mo until i gave up and put the electronic controller from a 1991 on my 6.2. It worked much better. The original had a heater that warmed up and that is what would kick the plugs in and out. The 1991 had a timer that would trip the plugs on and off. you had to connect a wire to the starter. once it saw that pulse from the starter solenoid it would then kick into afterglow..it assumed the engine started. was a much more dependable system.

I THINK A FEW GLOW PLUGS ARE BAD

I am not fond of the early years of diesel pickups.. big trucks had real fuel heaters an block heat or glow plug to get it more ritise. The starters weighed enough for three of them an now the lightweight replacement comes an you scratch your head as to how could this light weight little starter turn this behemoth over. Not only turn it, it turns right nicely. So to keep this from getting novel status, I bring this to the table. You get out of the hospital an your in all sorts of manadgery to hold you still an can't scratch your ear (only thing missing is that collar that you use on a dog) so people are full of oh, sorry here let me hold that door or something thats more really irritating. Two weeks later in same but washed shirt an pants, some youngen is taking shots at you going in an around till you get dizzy. and here is the best part; crawling up on to the engine bay to work an those an others that decide to jump right in, hurt really bad now but your the only one there.....use all the "unnecessary" growns that you need and stretch em out if you please... I started hurting way before your age now as you might of, and at 73 feel like that damn train did too hit me head on!

I prefer to vacuum bleed the injection system through the return hose.

That should run better. Yanks out the rag stuffing! 😂

w00t

I've had that popping sound a few times on 6.2s and 6.5s. Scared the oop outa me...no idea what it was.

It's too bad it's not worth enough to cover your labor,let alone the parts. Lol

there was a story on car talk about how a guy forgot the sock he put in the intake and started the engine ......thank god yours didnt start on the first try..............ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-GlkhSa4jV50.html...................go to the 42:30 mark

Because 6.2's never have fuel/oil leaks🙄😂