Check valve is bad loosing prime and full time pushing fuel back in tank. That’s where bubbles are coming from and why your APU isn’t running. Fix it, your getting good at this. 😊
I had a truck that always had some problem, i always thought that i would figure things out and have a good truck NOPE. Everytime i was home, all my time was spent working on the truck missing family time. One day i said screw it. I went and bought a new Peterbilt, this truck was loaded with all the extras, then drove down the street and bought a new flatbed. When i figure the cost of parts, labor, and downtime the payments don't cost as much as trying to keep the old truck running. That truck is now 8 years old and still running like a top. My thought was that i spend more time in the truck than at home so im going to have a nice truck. I never looked back. It has been wonderful.
That check valve on your pre common rail mp8 should be 50 to 80 psi. It definitely needs replacing. BTW, I had my fleet of trucks registered to a separate llc (not for hire). When I needed a truck I would lease it to the corporation. Then when. I didn't need it I terminated the lease and took it off the $1,000,000 policy. You can keep the tags because the not for hire insurance requirements are really low. Also, your irp should be cheaper for your 2nd year. You file according to your IFTA returns. This way you only pay for the miles you run in the states you run.
Truly a job that will teach you patience! Great video for knowledge and repairing a fuel pump. Be safe out there and keep up the great work on your videos 👍🏽
Get rid of the fuel filter setup on your truck. I had the same problem. Till I could get to my shop I carried a gallon jug of fuel so when I stopped truck I could prime the system by filling the filter housing, like you did with vacuum. Put a spin on fuel filter housing and convert it to spin on fuel filter. It’s cheaper and I prefer spin on filter to the system on your truck. Any way good luck I’m sure you fixed it by now. 👍 I enjoy your videos, thanks.
Banjo bolts have springs that go bad after a while. The overflow on a 12v cummins will let the fuel flow back when it gets weak, leading to hard starts especially when parked up hill. Haven't had this issue on the mack e7 or the Detroit 60 series ive driven so, didn't realize the bigger newer trucks still used these.
weather you keep the truck or not, I highly recommend the Fass fuel system. It eliminates the air in the fuel system before the fuel gets to the engine.
Wow…I continue to be amazed at your persistence. As others have said you’ve almost become a trained mechanic…! I hope your children have learned and inherited your critical thinking skills and how to work through a problem. I know you’ll get this issue fixed as well.
i took pictures of our mp7 fuel filter base today , i need a good long clear view of all the banjo bolts on your fuel filter base to ensure your overflow valve is in the right postion.
Check your fuel filter housing. There’s a small rubber peace inside that housing, that’s smaller than a dime broke off inside of mine. Changed along with injectors work later on and no problem since.
@@SouthGeorgiahotshot yes. I did everything you’re doing. Changed some fuel lines, fuel pump, filters etc but when I got to that fuel filter housing that’s where my problem was.
i hope you are able to get the new truck! The strapper and tarper would be like a queen in a new truck. She is such a good worker and you are lucky to have her work along side you! Good luck
Back in the day A check valve in a power steering pump not failed. It wore out Years of oil bypassing cut a Grove in the ball... Found a ball bearing with the same size balls. Installed it Was working fine when I sold the tractor
The inline fuel pump switch on when you switch on your ignition (or separate on/off switch) and immediately starts pumping until acquired pressure are reached and then automatically switch off - so your fuel system is always primed when you switch on your fuel pump. It is also easy to spot ruptured fuel lines, because your fuel lines is immediately under pressure when you switch on your electric fuel pump
Keep the truck you know what it doesn’t need you already fixed that you will figure it out we all have faith. New truck new headache and $$$ And when you get tired of driving you’ll make one hell of truck mechanic👍😉
Ya, rev it up and clean the pump up. The reason it started running better is because it cleaned the pump by itself. My advice would be to replace all the fuel lines. Great west was my ins. It's let's you park and stand by.
I’ve worked on Mack’s the last 10 years. The biggest thing I’ve seen is injector cups/injectors. With that said could be a line with a crack in it, could be check valve inside the filter housing. There is a ball in spring could be clogged broke hanging open I’ve also seen the primer pumps cause it. Good luck on your journey.
I can imagine the fuel rates increasing is just the start for what they’ll be in the middle of winter. My opinion is jumping on a truck purchase with bills now will be more stressful than trying to sort out your Mack. Just my opinion tho. Plod on and hope you nail the fuel system problem.
Don’t get a new truck. I did the same thing. Had so much trouble with my truck that was paid off I got a newer truck and have a payment. I just called the banks today and asked them where to drop them off. Simply can’t afford all this shit anymore. Trucks been in the shop more than I’ve driven it I feel like. Fuels going up, rates suck, everything is against us in this industry. I can’t do it anymore it’s bankrupting me. Get a job before you pay for a truck it’s not worth it.
i remember around the late 80's, they started to get rid of all owner operators. couldn't do it then,but now, they have found a way, and also been getting rid of all teamsters and they killed off the biggest in the industry, Yellow Freight.. and along with all the company's that she had.. This was a huge win for them, not us.owner op's, lease op's, you are all going to have to stick together and combat them or you will lose out..
I had heck with my mp7 and it ended up being trash in the tank blocking fuel flow. Mack said they have had problems in thr 90 degree brass fittings clogging up. There is a upgraded fuel line kit with larger lines and fittings
insurance is quite the racket. i tried the same thing and ended up selling the 2nd truck. whatever you pay now, just plan on doubling it for a truck that sits
you are really in a quandary here , keep old truck that keeps having problems or replace with a newer truck with a payment book but is more fuel efficient , tough decisions , if it was me I would go for a newer truck even with the payments better fuel mileage is a plus and hopefully less mechanical issues , but since it isn't me or my money what I would do is irrelevant , hopefully you get it all sorted out soon !
I have different motor and I ran into same issue. Dealer didn’t know how to fix it. I changed a lot parts didn’t fix any of the issues. I talked a old head driving a old truck. Every truck should have two checks valve one on the fuel pump and one on the head. Beside that water separate fuel housing could let air in the truck. I change all tree and issue goes away. I strongly recommend to change check valve in coming fuel lane at the water separator first then the one on the head. Whose little white bolts worsen out. Also check hose that goes to head and see if it dries out. That is all I can say brother. Hoped it get fix
I agree with fuel filter, housing from the video. It should have a little fuel in the glass even after changing. I replaced one time and did not get it tight enough.
Ever figured this out ? I have one just like yours and it’s stunning to do same thing. Changed check valve got better but there yet. And also what tablet you are using? I m looking for one now
Hoping that check valve was your problem. And hoping you moved up to a Cummins powered 3 digit, 2 letter truck also. Katelyn in the office and Allison in the shop at Haggai are great people to work with. If you go that route, you won't be disappointed there! I just picked up an empty trailer so I can pick up a load tomorrow... and THEN I discover this is brake week - Dang-it!!! I always seemed to miss the big weeks in the past... oh well.
That bit with the shop vac? Uuuhhhh, if it works then I guess I can’t dispute it. But that’s the exact opposite of what I do I fill the fish bowl. Prime till near the bottom (don’t let it get below the bottom), fill and prime till reaches bottom again. Do this 3 times total, regardless of truck Fires up every single time without issue
Warren's already said don't call him for anything because he doesn't gain anything from it and he can't do anything when it's not in front of him! But yea Warren definitely would have in running right!
I haven't followed you and all the things. U have done , but years ago had the same problem , and it turned out to be the fuel lines or time they break down .
Losing your prime will always be a check valve, not the fuel pump. I haven't watched this all the way through but I'm sure you found the problem to be the check valve that's sometimes integral to the filter but can also be located in the fuel filter housing (part of your engine) or elsewhere....
another way you can prime it is take your blow gun and blow air through your tank vent keep the system closed while you do it i have done that many times on the side of the road when guys run out of fuel
Dont do telegram. If your still having the problem run a fuel line from the fuel filter to a bucket and run it, If it looses prime now you know its from the filter forward. If it doesn't you know its a fuel line or splitter valve from the filter back.
Also with the miles you have on the truck if it has cotton covered lines they are getting brittle. They can have little bin holes that cause you to loose prime and not leak horribly.
The check valve on my c15 cat gets weak or dirty enough that it doesn't seal once a year. The fuel they make us buy is garbage. The check ball usually gets rusty from all the water in the fuel
When he pulled into that Podunk truck stop this winter to buy fuel for some ridiculously low price the first thing I said was that's gonna lead to problems...and he's been dealing with this since.
some are saying check valves , yes it could be that , Check valves are only supposed to go one way , If they go bad the fuel returns to tank, and It loses prime
Hi Robert. It isn't as if you have not tried and or replaced almost everything. If you went to look at the truck, I hope you took your computer with you to check the actual milage. The woman's name on TH-cam is: nut n but isx, or something similar. You are so cool headed with so much going wrong. You will get it running. Have good days!
THAT IS NOT A CHECK VALVE its the main fuel pressure regulator, which should be 65 psi, the fuel goes in on the back left of the head and fills the head and that opens and lets the fuel return to the tank/filter base, its a injector cup told you that three videos back, in rare cases there is a small hose on the filter base that cracks but it is very rare, you need some banjo fittings and clear lines to properly diagnose this, starting with the air at the left rear corner, if you have none going in and some coming out its the injector cup. its not hard to diagnose you just have to have the proper tools, aka a dealer. i have done 100s of these, good luck you said the 8 4 23 which is 17 days behind,
Damn bro, that opening. You're blowing on your truck again! I'm betting that it's running like that so you'll blow on it more! ;) Srsly though, I am learning a lot from your videos. Keep 'em coming.
Yup, what's a money pit? something on which you keep having to spend a lot of money, especially when it may be a waste of money. Cut your lost and sell it before it's too late.
I can't believe you still didn't change the units on this software. Are you sure you cannot change it in the Settings (like Km to Miles, kPa to PSI, etc)?
Yea good luck with that. They seem to be about as smart as me and I am not that smart. They have a fancy computer if the computer says nothing they know nothing. That is just my experience. They say that is just the way they run. I am telling you something is wrong. I will figure it out one of these days.
fass fuel filter system should be run on all trucks like mack and volvo that have injector problems it will fix the problem take that filter housing off
Haggai is definitely the best for cummins engines…..there’s another TH-camr, his channel is Just Trucking……he swears by them for any cummins work you need to gave done. They even let him rebuild his own engine in their lot also…..
Check valve is bad loosing prime and full time pushing fuel back in tank. That’s where bubbles are coming from and why your APU isn’t running. Fix it, your getting good at this. 😊
No need to change from the MACK…you are almost a master MACK mechanic already
Agreed.
I had a truck that always had some problem, i always thought that i would figure things out and have a good truck NOPE. Everytime i was home, all my time was spent working on the truck missing family time.
One day i said screw it. I went and bought a new Peterbilt, this truck was loaded with all the extras, then drove down the street and bought a new flatbed.
When i figure the cost of parts, labor, and downtime the payments don't cost as much as trying to keep the old truck running.
That truck is now 8 years old and still running like a top.
My thought was that i spend more time in the truck than at home so im going to have a nice truck.
I never looked back. It has been wonderful.
That check valve on your pre common rail mp8 should be 50 to 80 psi. It definitely needs replacing.
BTW, I had my fleet of trucks registered to a separate llc (not for hire). When I needed a truck I would lease it to the corporation. Then when. I didn't need it I terminated the lease and took it off the $1,000,000 policy. You can keep the tags because the not for hire insurance requirements are really low.
Also, your irp should be cheaper for your 2nd year. You file according to your IFTA returns. This way you only pay for the miles you run in the states you run.
Truly a job that will teach you patience! Great video for knowledge and repairing a fuel pump. Be safe out there and keep up the great work on your videos 👍🏽
Get rid of the fuel filter setup on your truck. I had the same problem. Till I could get to my shop I carried a gallon jug of fuel so when I stopped truck I could prime the system by filling the filter housing, like you did with vacuum. Put a spin on fuel filter housing and convert it to spin on fuel filter. It’s cheaper and I prefer spin on filter to the system on your truck. Any way good luck I’m sure you fixed it by now. 👍 I enjoy your videos, thanks.
If you two want to stay in trucking don’t buy anything now. the truck price are going to fall, but I’m loving the drama and the comedy!
The only reason to tune in!
That fuel check valve is almost identical to the one that just failed on my boat.
Hey at least you didn’t have to paddle back to the dock 🚤 😂
Banjo bolts have springs that go bad after a while. The overflow on a 12v cummins will let the fuel flow back when it gets weak, leading to hard starts especially when parked up hill. Haven't had this issue on the mack e7 or the Detroit 60 series ive driven so, didn't realize the bigger newer trucks still used these.
I feel for you man. Just don't give up. Do what's best for you, You guys made it this far you can keep going! Overcome the bs...
My belly or my back, that's what she said!
weather you keep the truck or not, I highly recommend the Fass fuel system. It eliminates the air in the fuel system before the fuel gets to the engine.
Wow…I continue to be amazed at your persistence. As others have said you’ve almost become a trained mechanic…! I hope your children have learned and inherited your critical thinking skills and how to work through a problem. I know you’ll get this issue fixed as well.
i took pictures of our mp7 fuel filter base today , i need a good long clear view of all the banjo bolts on your fuel filter base to ensure your overflow valve is in the right postion.
Shoot me an email southgeorgiahotshot@hotmail.com
Check your fuel filter housing. There’s a small rubber peace inside that housing, that’s smaller than a dime broke off inside of mine. Changed along with injectors work later on and no problem since.
Small rubber piece on the inlet side?
@@SouthGeorgiahotshot yes. I did everything you’re doing. Changed some fuel lines, fuel pump, filters etc but when I got to that fuel filter housing that’s where my problem was.
@@jlsims1276 ahh mine is new as well thats the first thing the mack dealership replaced
i hope you are able to get the new truck! The strapper and tarper would be like a queen in a new truck. She is such a good worker and you are lucky to have her work along side you! Good luck
Back in the day
A check valve in a power steering pump not failed. It wore out
Years of oil bypassing cut a Grove in the ball...
Found a ball bearing with the same size balls. Installed it
Was working fine when I sold the tractor
The inline fuel pump switch on when you switch on your ignition (or separate on/off switch) and immediately starts pumping until acquired pressure are reached and then automatically switch off - so your fuel system is always primed when you switch on your fuel pump. It is also easy to spot ruptured fuel lines, because your fuel lines is immediately under pressure when you switch on your electric fuel pump
these do not have electric pumps
The electric fuel pump can be bought as a aftermarket at any parts and accessory shop @@SouthGeorgiahotshot
Another great show , thanks
Don’t buy a truck wait on that Mack man
Keep the truck you know what it doesn’t need you already fixed that you will figure it out we all have faith. New truck new headache and $$$ And when you get tired of driving you’ll make one hell of truck mechanic👍😉
Ya, rev it up and clean the pump up. The reason it started running better is because it cleaned the pump by itself. My advice would be to replace all the fuel lines.
Great west was my ins. It's let's you park and stand by.
The advert with them scrap cars WAS THAT A THREAT TOO MACK 😳 😆 🤣 😂 😹
I’ve worked on Mack’s the last 10 years. The biggest thing I’ve seen is injector cups/injectors. With that said could be a line with a crack in it, could be check valve inside the filter housing. There is a ball in spring could be clogged broke hanging open I’ve also seen the primer pumps cause it. Good luck on your journey.
I can imagine the fuel rates increasing is just the start for what they’ll be in the middle of winter. My opinion is jumping on a truck purchase with bills now will be more stressful than trying to sort out your Mack. Just my opinion tho. Plod on and hope you nail the fuel system problem.
Don’t get a new truck. I did the same thing. Had so much trouble with my truck that was paid off I got a newer truck and have a payment. I just called the banks today and asked them where to drop them off. Simply can’t afford all this shit anymore. Trucks been in the shop more than I’ve driven it I feel like. Fuels going up, rates suck, everything is against us in this industry. I can’t do it anymore it’s bankrupting me. Get a job before you pay for a truck it’s not worth it.
i remember around the late 80's, they started to get rid of all owner operators. couldn't do it then,but now, they have found a way, and also been getting rid of all teamsters and they killed off the biggest in the industry, Yellow Freight.. and along with all the company's that she had.. This was a huge win for them, not us.owner op's, lease op's, you are all going to have to stick together and combat them or you will lose out..
You are right!
Who are "they"? @@Roy-l7v
I had heck with my mp7 and it ended up being trash in the tank blocking fuel flow. Mack said they have had problems in thr 90 degree brass fittings clogging up. There is a upgraded fuel line kit with larger lines and fittings
Had the same issue with my Mack. The problem was trash in fuel lines. Mack dealer cleaned it out and problem solved.
trash in the line caused you to lose prime?
Yes it did. Sorry responding so late. Everything your truck was doing my truck was doing the same thing. That was 3 months ago I had it fixed.
insurance is quite the racket. i tried the same thing and ended up selling the 2nd truck. whatever you pay now, just plan on doubling it for a truck that sits
Keep working on the Mac like this and you’ll need the snap on truck to start swinging by
Bring it to OKC and have my mechanic look at it. The best mechanic I’ve ever had.
you are really in a quandary here , keep old truck that keeps having problems or replace with a newer truck with a payment book but is more fuel efficient , tough decisions , if it was me I would go for a newer truck even with the payments better fuel mileage is a plus and hopefully less mechanical issues , but since it isn't me or my money what I would do is irrelevant , hopefully you get it all sorted out soon !
Your clear filter also has a check valve change them out they are old already and cheap to change..good luck.. test your disel lines also..
Man you are both are go getter, just hang in love the content.
Listen you need to start cracking the lines at the injectors.
Thats how you bleed the air out of the system while its running
🏆
I have different motor and I ran into same issue. Dealer didn’t know how to fix it. I changed a lot parts didn’t fix any of the issues. I talked a old head driving a old truck. Every truck should have two checks valve one on the fuel pump and one on the head. Beside that water separate fuel housing could let air in the truck. I change all tree and issue goes away. I strongly recommend to change check valve in coming fuel lane at the water separator first then the one on the head. Whose little white bolts worsen out. Also check hose that goes to head and see if it dries out. That is all I can say brother. Hoped it get fix
Every time I see the intro and I see Lita in that day cab and she says oh my God it’s so funny
It’s probably the fuel filter housing.
I agree with fuel filter, housing from the video. It should have a little fuel in the glass even after changing. I replaced one time and did not get it tight enough.
Ever figured this out ? I have one just like yours and it’s stunning to do same thing. Changed check valve got better but there yet. And also what tablet you are using? I m looking for one now
Hoping that check valve was your problem. And hoping you moved up to a Cummins powered 3 digit, 2 letter truck also. Katelyn in the office and Allison in the shop at Haggai are great people to work with. If you go that route, you won't be disappointed there! I just picked up an empty trailer so I can pick up a load tomorrow... and THEN I discover this is brake week - Dang-it!!! I always seemed to miss the big weeks in the past... oh well.
That bit with the shop vac? Uuuhhhh, if it works then I guess I can’t dispute it. But that’s the exact opposite of what I do
I fill the fish bowl. Prime till near the bottom (don’t let it get below the bottom), fill and prime till reaches bottom again. Do this 3 times total, regardless of truck
Fires up every single time without issue
Warren. Western Truck and Tractor Repair on TH-cam. He will know what’s wrong. Guaranteed. Kindest regards,Sunshine Coast,B.C 🇨🇦
Warren's already said don't call him for anything because he doesn't gain anything from it and he can't do anything when it's not in front of him! But yea Warren definitely would have in running right!
How you end up fixing the fuel priming issue????
I haven't followed you and all the things. U have done , but years ago had the same problem , and it turned out to be the fuel lines or time they break down .
If the issue started after changing fuel filters I'd start there. Fuel filters are cheap and easy to try
You actually got your worth out of the Mack, my young friend.
With a truck that old and that many miles, I wouldn’t be surprised that everything you look at to change is going to be some level of worn out.
Losing your prime will always be a check valve, not the fuel pump. I haven't watched this all the way through but I'm sure you found the problem to be the check valve that's sometimes integral to the filter but can also be located in the fuel filter housing (part of your engine) or elsewhere....
Put a one way valve in line before the filter this then will stop the weight of fuel trying too run back their in most car n truck stores
Great video, Robert.
another way you can prime it is take your blow gun and blow air through your tank vent keep the system closed while you do it i have done that many times on the side of the road when guys run out of fuel
It;s a fuel line or a check valve . More than likely a line.
Dont do telegram. If your still having the problem run a fuel line from the fuel filter to a bucket and run it, If it looses prime now you know its from the filter forward. If it doesn't you know its a fuel line or splitter valve from the filter back.
Also with the miles you have on the truck if it has cotton covered lines they are getting brittle. They can have little bin holes that cause you to loose prime and not leak horribly.
The check valve on my c15 cat gets weak or dirty enough that it doesn't seal once a year. The fuel they make us buy is garbage. The check ball usually gets rusty from all the water in the fuel
When he pulled into that Podunk truck stop this winter to buy fuel for some ridiculously low price the first thing I said was that's gonna lead to problems...and he's been dealing with this since.
Plastic ball and spring check valve in your davco fuel/water seperator housing
Robert, it seems your following logical troubleshooting procedure.
Put a FASS on it!
I’m on the backend of my trucking career so I’ll keep my Detroit 60.
Have you replaced the injector wiring harness. It can go bad causing this. A bad wiring harness can also damage injectors. I’ve seen this happen.
some are saying check valves , yes it could be that , Check valves are only supposed to go one way , If they go bad the fuel returns to tank, and It loses prime
Hi Robert. It isn't as if you have not tried and or replaced almost everything. If you went to look at the truck, I hope you took your computer with you to check the actual milage. The woman's name on TH-cam is: nut n but isx, or something similar. You are so cool headed with so much going wrong. You will get it running. Have good days!
JUSTIN from justtrucking has been there as well and highly recomended them.
@@joseguadarrama255 I guess you did not hear Robert ask folks to stop recommending Haggai. They only work on ISX.
@buddyreed2623 I did but just saying I'm case he does get that newer truck.
THAT IS NOT A CHECK VALVE its the main fuel pressure regulator, which should be 65 psi, the fuel goes in on the back left of the head and fills the head and that opens and lets the fuel return to the tank/filter base, its a injector cup told you that three videos back, in rare cases there is a small hose on the filter base that cracks but it is very rare, you need some banjo fittings and clear lines to properly diagnose this, starting with the air at the left rear corner, if you have none going in and some coming out its the injector cup. its not hard to diagnose you just have to have the proper tools, aka a dealer. i have done 100s of these, good luck you said the 8 4 23 which is 17 days behind,
ShopVac and fuel makes me think of the Darwin Awards…😂
That’s where Justin takes his truck to.
that filter won't fill up unless it's clogged. thats what the numbers are for.
I think its time for a new rig. That truck seems to have one issue after another. Good luck man
Check valve is problem.had same issue on a detroit s60.try the cheap stuff first
I told you to change the check valve 6 months ago.
Damn bro, that opening. You're blowing on your truck again! I'm betting that it's running like that so you'll blow on it more! ;) Srsly though, I am learning a lot from your videos. Keep 'em coming.
Ya know your from the South when ya check your Coke for sweat bees and flies before you take a drink.....
flys dont bother me but hornets hurt like hell
Dang, I forgot the check valve in the head!
Yup, what's a money pit? something on which you keep having to spend a lot of money, especially when it may be a waste of money. Cut your lost and sell it before it's too late.
Dammit that seems to easy amazeing..it worked
I can't believe you still didn't change the units on this software. Are you sure you cannot change it in the Settings (like Km to Miles, kPa to PSI, etc)?
You can
There is a service where a guy with a truck and a tool bed and a computer will come out and diagnose and fix your truck if you paying
Yea good luck with that. They seem to be about as smart as me and I am not that smart. They have a fancy computer if the computer says nothing they know nothing. That is just my experience. They say that is just the way they run. I am telling you something is wrong. I will figure it out one of these days.
😂 the ending
And on today's episode of Robert and his Mack....
If it's a cheap part, replace it.😊
Possibly the lift pump in tank... or lift tube
Change 100% of thr fuel lines including the pick-up tubes in the tanks.
I’m in Murfreesboro tn if I could be of any help for anything just let me know have CDL and drive part time.
you should not be able to blow through it at all, VW diesels have the same thing
I am sure you have figured it out by now..
Robert you left us on cliff hanger so was that check valve your problem?
do know yet. valve hasnt come in yet
You’re right just change parts until you get it right hahaha 😢
Keep saying, get it looked by a spiritual person to get rid of the evil. Then have it blessed. 😊
Maybe you should try a electric inline fuel pump
fass fuel filter system should be run on all trucks like mack and volvo that have injector problems it will fix the problem take that filter housing off
You need to scan it for codes thrown
Haggai is definitely the best for cummins engines…..there’s another TH-camr, his channel is Just Trucking……he swears by them for any cummins work you need to gave done. They even let him rebuild his own engine in their lot also…..
what fuel pump are you changing you should have a low pressure and high pressure pump
Man I really wonder whats up with the mack
🎉as must problems as you're having with injectors
Why don't you set up a bench tester
Then you can test and see each injectors leakage if any
My hazards are not in sync. Anyone know what that's all about?
The blinker fluid was probably made in China. 😂
Buys a $100 made in China part. Wonders why truck isn’t running.
2 👍👍 up bro y'all stay safe out there 🤞💕🥾🇺🇸🍼🐶🐕🦴🍗🍀
Ask Dirt perfect, he knows MACKS
First from Virginia 👊🏻💪🏻
wow dude, a shop vac ?
amazing right?
Amazon! Are you serious.
The fuel rate seems to be higher, not sure what that means though
He riding up 85 wit a Cummins lol