GMC W4500 / ISUZU NPR BRAKES, KING PINS, SHOCKS, RUNNING PROBLEM PT 1
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- čas přidán 2. 07. 2020
- THIS GMC W4500 HAD A RUNNING ISSUE. BRAKE PROBLEMS, STEERING ISSUES AND SOME OTHER PROBLEMS. WE GO OVER THE TRUCK AND GET THE PARTS ORDERED. IT NEEDS A PILE OF PARTS AND WORK.
J.C. SMITH
P.O. BOX 143
ATWATER, OHIO 44201 - Auta a dopravní prostředky
LOVE IT J.C. "go back to your job as a WalMart greeter"
We are glad this Isuzu showed up. You went into detail explaining what you found. We gain a lot from that. Thanks
Just found one of your videos.... I'm not a mechanic but am mechanically inclined. That said tons of appreciation with the little nuggets of trade secret type info that people like me done know. Thank you, I hope I can find all your videos as informative as this one.
As usual - doing a proper job, no cutting corners, well done JC, WILL BE A GOOD TRUCK WHEN DONE FOR A BUYER.
even after all these repairs, the truck is still profitable (and i do figure my time in it as a cost of the repair). i do my best to do a good thorough check on the truck. it wont be new when i am done but i will do my best to make it safe and reliable.
Your skills are really great J.C I appreciate your attention to detail and thanks for sharing your know how with us.
Hi again, Roy from down under ,
I have had these model Isuzus for the last 15 or so years, they have performed well and servicing has been simple , quick and without issue.Wheel changing never an issue even with the the rear lug nuts the way they are.
There are a great many of these on the road today dating back to the beginning of this cab style in @ 1995, which I have one still going strong with nearly 700,000 Kim's on board.
I cannot say enough good things about these. The motors go for a long time without problems.
I think that our climate is conducive to their longevity, and we really do not have too much of a rust issue here. It is cold here where I live but not such cold that it affects steelwork and the body and chassis .
Keep up all the good work,
Thanks
Roy
Found this today when considering buying one of these. Really enjoyed the video and admired your work!
Thanks for the video!
I’m so great full that here in sunny Queensland Australia 🇦🇺 that we don’t experience the massive rust issues you have. Just poor maintenance of drivers
Good job looking foreword to part two! Always learning from your channel thankyou:)
I like all your videos man keep up the good work
A good one after some time. Waiting for part two.
Very good content and I love the teamwork.
Great video..
Thank you
I’ll be on the look out for part 2..
I really enjoy the work you do on your trucks. Very educational and fun to watch JC. At least when you’re done with each project you can rest easy because you get each project done the right way. And keeping the trucks safe for the road. And have you done any other 3/4 and one tons lately. I also enjoyed watching those as well.
no. i have not videoed any of the smaller trucks lately. i do have my 2011 dodge crew cab dually that is going to need a bunch of work later this fall. it should be a huge project.
Nice work on this smaller truck for a change
We get the isuzu trucks out here in New Zealand too and i'm very familiar with most of them. They are good and last quite well giving good service. We don't have salted roads where i am in Auckland so we don't get problems like that out here until they are over 20 yrs old. Always put never-seize on the treads and hub. A lot of the time Japanese trucks need brake adjustment once a year or you get a lot of pedal travel. I had a truck a few months ago with worn king pins that needed replacing. An old Mitsi canter with 26mm? pins. Some days you should stay at home pull the covers over you head and tell the world to go away in no uncertain terms. This was one of those days. I had to replace a stud and wheel nut after snapping one off with the rattle gun. I got the wheels and hubs and brakes off and tried undoing the taper locking stud in the axle. I have a tool that you screw onto the stud and bash it and the stud usually comes free. This one didn't because someone had put it in crooked and it had hammered it . The head was mushroomed. I had to drill it out and that took a while. We phoned the local truck shop up and got one of the boys over with their 20 ton portable king pin press. "This will be no trouble, out in 2 pumps, works every time" he said and came over set it up and it wouldn't move either one of the king pins. Out with the gas set and torched off the thrust bearings pushed the hub up with the jack. So i had to hacksaw the bottom one, and then the top one. (both sides). No the F*&^$^((N grinder with the cut off wheel wouldn't fit in there. A level of frustration was setting in by this time. So next step take the whole axle out and we tried putting in in our 25 ton press and the middle of the king pins still didn't come out. Down to the engineer with the 2 stage 50 ton press that, shifted it. The rest of the job went perfectly.
I used to run a fleet of these things, bought by a previous manager. Glad to see them go off to auction!
Was there anything in particular you didn't like about them? I'm trying to decide on some new class 5 trucks.
@@inoahmann7542 cramped cabs, terrible ride, no storage in the cab, bodies much wider than the cabs, no power. They were replaced by Ford Transit trucks, 100% better in every way.
I almost bought one very cheap think it didn’t move. Love the variety. Great fix on the brakes. Bet it gets great mpg. Those rotors won’t be cheap.
Thanks. This is very useful info to me.
Awesome video. Thanks
Dang J.C. It’s always amazing the can of worms you open up when you start working on theses projects, you do good work, your customers should be very confident that they are buying a safe vehicle. 👍
Very good work...
Good craftsmanship on your part. I too, believe in neverseize and use it religiously on everything I do. An ounce of prevention is worth more than one hundred pounds of cure!!
I sometimes feel like I’m the only one who cares about doing these jobs right. It’s refreshing to watch you work, and know that you perform repairs 100 percent legit. Don’t know where that box truck was operating but the DOT around here targets them and landscapers for a good reason there trucks are often not safe. That truck had so many violations was Ray Charles inspecting it? No way all that happened in one inspection cycle. The boost leak good find ,that had to be whistling like crazy, that works the turbo so hard it never gets to wastegate pressure so it’s spins it harder.....Those trucks stop marginal at best when new that thing must have been dangerous loaded trying to stop between the frozen king pins and frozen calipers,that thing was just neglected so bad. I’m sure you won’t sell it until it’s 100 percent road worthy and safe...great work JC keep it up and happy 4th of July to you and the family .
this truck had no evidence of an anual inspection any where on it. it wont be new but i will fix anything i see to make it safe and reliable.
Omg. We just got a 1995 gmc w4 wanna make to a camper in Ca , really really wish we can find some one like you in the area to help with the truck.
Great video JC! 🙂 nice call on putting the spindle nut back on to hold the inside bearing 👍 man oh man did that rotor get hot! 🔥 😲
simple things can make a jub so much easier. the reluctor ring for the abs had been pryed on also. so i dont know which came first. the heat or the bent ring.
thank you for share great detailed video
all great watching
20 something years ago I worked for a company that had Fruehauf Van's with those budd lug nuts on them. Every time I had a flat they would break at least one lug nut. Haven't seen them since. Hub pilot is the way to go.
The "bluing" on the spindle...that shows that there was some bearing heat. I ain't an expert...But I'm sure I remember mechanics tell me that is a tell tale problem with bearing friction from seizing or lack of grease.
Looking to buy one of these trucks for a farm truck. I appreciate the detail you go into. It would be nice to see an NPR walkthrough of what problems to look for in a used one.
A true craftsman after my own heart. Settle down now...I don't swing dat side of da fence lol.🤣
Good Lord...thank u for mechanics like u like I was, dat ain't gunna bullassshit u & tell u da truth like a real man would love to hear.🫡🫡🫡💪🏿💪🏿👏🏿👏🏿👏🏿
But who knows what da original owner said Yay &/or Nay too???🤷🏿♂️🤷🏿♂️🤷🏿♂️
thanks for your beautiful efforts, can you also help me how to deal with the green exhaust brake light on dash?
I have taken apart several trucks just like this one. They were all street sweepers. The bud nuts gave trouble about coming off, of course. They were pretty rusty from being neglected trucks.
I believe those king pins are similar to what the f super duty trucks have, similar axle. Ford also used the backwards torx bolts, though they usually cooperate.
we will see how these come out. i am preparing for a fight.
Check the heater core lines for rot I almost blew my motor when they failed.i replaced them with copper plumbing works good.
Cool video I wonder how long before the front steer tire or back tire would have come off the truck
Good stuff as always. I swear by balance beads on just about everything. I just acquired a 2005 NPR chassis on a trade deal,haven't figured out what i am going to do with it yet may be build a trailer puller hauler out of it.
i dont know about yours but most of these little 4 cylinder isuzu diesels seem to run very well and are reliable. i dont think they have great power but it works for the light chassis it is in.
Good info
My old job trugreen ran those trucks, the were decently maintained. And ill tell you what, those trucks never skipped a beat we some with over 200k miles and 25k hours. The pto driven pumping system always had issues though.
i see a lot of them well into the high 200k miles. i have owned a couple over the years. typically it was a situation like this one. the repairs quote the pervious owner got was too much for them to want to fix it.
Yup my king pin does that too with the wheel that's when I know it's time for Grease.. LOL
we will see how the tiger tool king pin press works.....you may need it too! at least i will be able to show how "not" to use it. hahaha
"5.23" had this last week with 5 wheel nut on my Isuzu, had to get a M20 fine thread bolt on the back to help undo them once wheel was off. Yours here look much more rusted than mine were.
Oh God, the GM instant seize "sliding" calipers are now on trucks...
I'm just glad we don't have so many of those heaps in the UK, though a number of larger companies seem to be buying them more, presumably due to price, so we'll be seeing more and more of them, at least until they work out what their fleas are...
Hi, my w4500 is from 02. I has an intermittent ignition problem. Coil n module are fine. Hard reset has it running a few minutes then engine light comes blinking then engine just dies out. Spark test reveals low to no spark 9/10 times you crank. It randomly gets 1 good spark. We know Its not the CO2 sensor, not the maf sensor either. Any guesses?
i work at a Isuzu Dealership and I've seen plenty of trucks with all the same issues. i wish we had a kingpin press we heat them and use a old kingpin welded to a handle to beat then out with.
an isuzu dealer without a king pin press? i have alway used an old king pin welded to a broken breaker bar. one person holds the pin while the other pounds on it for what seems to be days. i am hoping the tiger tool king pin press changes that.
Isuzu also has a stamped steel version tone ring. They are insanely difficult to not bend and are over $100 each if they need to be replaced. There's no way around it though, they have to come off to access the bolts that hold the rotor to the hub. There is a stupid special puller, but it's stupid special expensive (like $800+)
Good luck JC. I'd rather eat my hand than do king pin bushings. Do you have a "porkchop" tool for those budd wheel nuts?
i do have the pork chop. kings ar not my favorite but at least it is a break from all the hack wiring i have been fixing lately.
Hey. What's a porkchop tool used for? Thank you
Back in the 80's...inner/outer budd wheel nuts were always an issue . Best way is to back them off a 1/4 turn each all the way around the rim until all inners come loose from the studs . Once the wheels are off..you used a tool that some refer to as a porkchop..it had a cutout the size of the outer nut..the other end of the tool would slip in the hole for the inner nut..take your square drive socket to the inner nut and spin it out..i have the 1 1/2" porkchop..i should get the 41mm one seeing i work on 3 of these type trucks for one customer
still dont understand why they continue to use these.
I had wonkey steering king pin problem. Used acetone and transmission fluid in a metal pump Oiler to free it up . Squirt turn wheels. Squirt turn wheels. Until free. Then grease the crap out of it.
Also the guy at the tire place broke a stud off because he never say left hand threads. I’m my 3rd Isuzu Cab over. 2 diesels the one I have now is gas.
I drove a 98 Isuzu from Utah to Detroit about 10 years ago. My brother bought it and needed it transported back. What a miserable experience. Truck would not go faster than 60, 55 was about max comfortable speed. Ride was absolutely horrid. I had to stop and buy a pillow to sit on.
The only good thing about them is they are easy to work on.
not an over the road truck for sure.
Budd wheels are a pain in the rear, I've done more than I wanted to.
Yep, lack of never seize and lack of grease will do it everytime. What a previous pathetic brake service you pointed out on disassembly.
Já trabalhei com um carro desse aqui no Brasil e gostei muito . show
do que ks para assistir
J.C. SMITH PROJECTS I didn’t know you speak Portuguese?!?!?🤣🤣🤣🤔 Abraços do Brasil (Greetings from Brazil) and a happy 4th of July.
I'd much rather work on air brakes than hydraulic brakes but that's my own opinion. Tiger tools are great tools I've got the U joint puller an the slack adjuster remover
Walmart Greeter that's why as a technician we take pride in our work
Anybody know the torque specifications for rotor bolts on Isuzu NPR
😳😎👍👌✌️like what your doing
The coloration of the spindle and the shrunk race suggests the race got hot and shrunk, so the hub could have actually been on-size still.
Mannnn i remember when i worked for Westchester isuzu i hated doing the king pins they would never come out we used to have an old king pin welded to an broken breaker bar that we used as a punch. Man we all use to take turns trying to beat these f*cking things out hopefully yours come right out
i expect to have the torch out with the rosebud tip to get them out. we will see how well the tiger tool king pin press works.
ya the race is very bad, hubs and races and rotors brakes the whole nine yards. Wow someone should not be doing mechanics letting that go out the door,, good catch I like that you check trucks out to the Max and it should be a great feeling that you only send safe trucks out Chris have a great day
It's not always the shop , I bet it was the owner of that truck that wanted it fast and cheap
it was the shop. regardless of what the owner wants, you have to have pride, integrity and standards in your work. you are either a professional or your not. a professional will never sway from the propper way of doing a repair. even if the owner wanted it as cheap as possible, that doesnt excuse the mechanic from doing it correctly. he could have simply declined to do the job if it didnt pay enough for him to do it correctly.
How do you remove outer lug when it is stuck to the inner lug? Inner lug just comes off - inner/outer lugs sandwiched on the wheel.
look up lug nut "pork chop". it will help you
are parts hard to find , as I'm looking at buy one now
I’d make a pipe before I would call the are silly high on everything at least here. Blower motor was 343 at the dealer I got it for 60 delivered.
J.C. have you ever welded a bead around the inside of the bearing race. It will shrink when cooled and can be knocked out easily.
i have. my welder was burried behind a load of new semi tires and tires for the gradall. it was less work to drive them out with a punch.
The problem is , great maintenance is not going to fix a bad design. I would not recommend keeping any Isuzu ( or the Chevy / GMV version ) more then 5 years or 75.000 mile, Parts prices are way out of line with...... say EVERYONE else .
Center punch divots all around the race area on the hub will often raise enough metal for the new race to grip the hub. I usually run a bead of weld around the old race rather than beat on it with a punch. The weld will shrink the race making it almost fall out on its own
i have done the weld bead many times. on this particular day, the welder was burried behind a new load of semi tires and tires for the gradeall.
@@j.c.smithprojects I would be lost if I didn't have access to my welder. That's probably why I have a few of them so I have easier access. A lot of the aluminum hubs make it almost mandatory to weld the race to remove them. I usually freeze the new race to make installing much easier
@@j.c.smithprojects It was easy to punch them out. A longer punch would work even better
A cheap 12” 3/8 extension is my go to... nice n soft , easily redressed. When it gets too bugered up ... throw it away. Save the brass for precision stuff... this whole video is like WOW , just WOW... Hacks.
Sorry J.C. I didn't see this post before my comment. You do great work.
Jc where do you buy your balancing beads at? I never used them before but I would like to purchase some for a truck ,and could you tell the brand name of the beads.Thanks !
i dont think the brand matters. you can buy them online. i get them from the wholesale tire company. you can look up how your particular tire size online and how many ounces they recommend.
I will say that you do right
i just drill a small hole then tap caliper pin out works every time no heat then 1/8 pipe plug to fill hole
Fast easy way to drop out bearing races with very little effort, weld a few passes all the way around the race and once it cools drops right out .
Are there JC good luck on removing those kingpins those things get so Frozen in there I work as a heavy truck mechanic in we do a lot of medium duty we are actually at Mitsubishi dealership we do a lot of Isuzu work to Aswan those kingpins Isuzu doesn't give you shims for whatever reason I guess I make more money Inn on the Budd Wheels some people don't realize like tire shops since you're a left and right hand thread well impact guns are stronger going in reverse since you got to go forward to remove it brings a lot of fun so I just went and packed gun torque accordingly to make it easy on the next guy owned by the way Mitsubishi has two calipers preach wheel talk about having fun with Frozen slide pins thanks for the video on a footnote sometimes enjoy a small hole in the caliper bracket on the face to let it soak penetration and weld up the hole after
i have never done an "easy" king pin replacement. maybe its the salt on the roads in the winter.
Subd. You sir are a real F****** mechanic.
Gotta love working behind someone who hacked everything up!! Pad slapped a truck like that, the person who did that needs to be slapped!! Hard to believe some times, let us know how you like the tiger tool, I’ve been wanting to get the u-joint tools. Take care and stay safe!
I have a 2016 NPR hd. When I get the memory steering you mentioned I know it's time for grease. I see a lot of negative comments about Isuzu but I love mine. I will say if you think you'll buy one of these trucks and run it with little to no maintenance you'll hate it.
i believe they are a cheaply made fairly reliable truck that is costly to maintain. they are light and have a short wheel base. this makes them desirable for inner city drving.
What isn't made cheaply nowadays? Not much. I do my own preventative maintenance and yes filters and oils from isuzu you pay a premium price. As a excavation /plumbing truck I can't think of anything better. Truck can u turn on most 2 lane roads and back a trailer anywhere it will fit. The only downside I can think of is the DEF system but not much you can do with that.
they have their place for sure. they are very popular with the trades around here because of their manuverability. they are not bad on fuel either.
New subscriber,Dirt Boss sent me. Great video. Would have liked to see how you got that rear wheel off. Where you located ?
i am in ohio. mike is a great guy. love his videos. he sure hasd some beautiful equipment!
LMFAO 🤣😆😂 I believe they will still fail as a Walmart greater 🤣😂😂💯🤣
I don't understand these " problems" with Budd wheels. Just go around and loosen each one slightly. As long as you don't hammer on one that the outer nut is loose on, you won't push the wheel stud in. Only issues I ever had was shearing off the square drive on a few occasions. At that point just put an outer nut on and weld it to the inner nut- stud deal
the salt and brine solution is usually the problem. it gets in the threads and rusts up tight.
Rivets don't damage rotor or drums they are softer than the rotor or drum. The gouging is because brake dust builds up in the river holes. The dust works like sand paper especially with ceramic material.
The best way to prevent the gouging is to pull the drums or pads once a year and hose the pads or shoes rivet holes down.
i have seen plenty of rotors and drums with the rivets ground into them.
@@j.c.smithprojects what happens is the trapped dust cuts the grooves and when they are deep enough the drum or rotor begins to machine away the brake linings and rivets easy enough to prove . Hold a rivet to a drum or rotor on a brake lathe see what happens. The brass rivet is softer than I the steel . That's why they use them . I like you BELIEVED rivets were bad and where ever possible I used bonded lining.
Until a old old timer brake guy explained it to me. And ground up several rivets Ina attempt to prove him wrong.
Do you think this truck is reliable?
I heard you say you were getting the rotors turned... I'm surprised you didn't get new ones. I've had warping. After the 2nd set of pads and we know that there were at least 2 sets run on those rotors. Plus the previous pad damage to the rotor
Just don't seem right...but your not done yet. With the truck..lets see what you did..
these were replacement rotors already. this is why the reluctor ring was bent. someone pried on the ring and bent it. that was the cause of it being loose. these rotors had never been machined. when i measured them for min. thickness and compared to new....they were at o.e. thickness. however, i did end up ordering new rotors as none had the correct tooling to machine these because of how close and wide the hub face was to the rotor.
I use to work on farm equipment
These NPR's are good trucks if you bought them new and replaced them before they get many miles on them. If you buy used, well this truck is an example of what you will find. Mainly due to the lack of maintenance.
so your saying if you buy it new and dont put too many miles on it....its a good truck. i guess our opinions of a good truck are different.
@@j.c.smithprojects I meant for company's that dont hold onto trucks for long. But for people like me who will probably own them until they get wreaked or I die, not so much
Don't be happy that the rear shoes and drum look good; that because the rear brakes WILL NOT SELF ADJUST! Had an '09 and a '16; both went over 100k miles with no rear brake parts replaced. The only time the brakes worked was when they were manually adjusted ($100+). Then they were great; 500 miles later back to crap. Now with no rear brakes doing their job, the front brakes and rotors are gonna cost you $$$. Goodbye Isuzu!!! Got a FUSO last week.
i adjusted them. they can be adjusted throught the backing plate. it can be done in just a few minutes. even if your self adjusters dont work well there is no reason for them to ever be out of adjustment. i dont want isuzu or mitsubishi. they are both imports that are cheap to buy and expensive when buying parts. good lock to you.
Can you show a video of the truck. Surging please
it is sold and gone.
5:30 how did you get that lug nut off? Anybody know a way?
look up "pork chop tool". that is what many people use.
Put heat on King pin top its hard to get grease in I had to keep at it but I got it these k pins need to be greased once a month.
iv worked on a fair bit of those npr's seen a number of them with seized king pins like that. i don't think many of the people that buy them know what a grease gun is.
i really dont know why they are so popular. compare to other medium duty trucks, they are very cheap made but expensive to repair. not a fan of these at all.
I wouldn't really consider them a med duty a medium duty is a way better truck. There more a light duty like a cutaway van with a gvw around 10k for someone trying to stay under 10k gvw for no dot requirements there not completely awful I'd rather work on a npr than a Ford v10 cutaway cube van. Only thing is the NPR's suck on the highway there more of a around town deal
this has a gvwr of 14,500lbs on 16" tires! come-on now isuzu........i agree. it is easy to get to about everything under the cab.
Irs a damn wonder the thing didnt lock up when you applied the brakes..wow that thing is in bad shape
was......in bad shape.
I think Literally nobody ever greases the caliper slide pins, you wouldn't believe how many times I've ran into that situation with froze up caliper pins lol and I'm not a fan of those bud wheels either!
some people just shouldnt be working on vehicles. i hope i found all the hack work and have corrected it.
lol i wish the tone ring was loose for removal
I have the same one only its a 07 Mitsubishi fuso...ive spent 25k on dpf, new ecm, dpf filter...these things are money pits and still drive like shit...get rid of it asap....trust me
Sell that piece of shit
Man I did king pins on one of these truck it took me almost 10 hours to do them no fun
lets hope that tiger tool king pin press makes it go quick!
I'm wondering where that hunk of rust went on the pipe
its under pressure so it went out.
The slide was already froze that's why he only put the outside pad on because he couldn't fit both new ones in without that slide opening up all the way.
if you saw the rotor, the pad must have had the lining riveted to the steel because it ground into the rotor. the pad i removed matched the brand, bonding and age of the outer. no rivets on the one i removed.
@@j.c.smithprojects Yea definitely a hack job all the way around. Nothing more infuriating then when you see somebody fought like hell to get something apart and then did nothing to prevent him or the next guy from having to do it again.
Part number on pliers
Do you want to sell the w4500 truck ?
My uncle has a fleet of those trucks
My friend has one of these GMC/Isuzu trucks and telling me how great they are. I dunno.
Not really the trucks fault, looks more like neglect snd poor maintainance to me..
When's part 2 coming
it is in editing now
I thought I had seen it all
But I see I haven’t
Was working on a car a few weeks ago with brake issues , took it all apart to find that the last person working on it used the silver anti seize on the pins
I have one of these it is a 2001 4.7 turbo, and it won't go past 62 mph loaded or unloaded have you ever had that problem?
hey J.C.