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Yup its time ! You need to also look to make sure the roller guide pin is not sheared off take a look down the hole see if the pin is still there !!!

^689 is on the money there !Yup bogus tool in my mind ! Mark your gears when u pull it back in the same spot when u assemble!

Yup Unless your p2 is usable your choices are limited

Think Barry was working on updates earlier ! I was on earlier and it said this web site was not available And was updating!

Yes

our Pet Name for the 800 series is the doberman the side image of the cab and long narrow hood! reminiscent of a dobermans head! 🙄

make sure the vents clear anything is possible, fuel return check / drain back valve also can cause this! Drain back is cheaper than the pump if you going to throw parts I would go there first!

Yup A three dressed up As Nine!

Gray or red engine?? Do you have a plugged fuel vent try cracking the fuel cap see if that makes the diffrence! So also Gray or red engine?? RED Injector cup issues if a red engine! MP 7 MP8? If gray faulty fuel supply pump could also be an issue!

At least they tried to use sum genuine parts the white unit had Mack diffs in it!

Be sure you check that your clutch brake is working! If not you would be well advised to remove the clutch cover and check for clutch brake pieces Or you may end up doing this job twice or even three times! Clutch brakes have been known to break and take out speed sensors! Just sayin!

Appears to be an Rd or RB

Maxidyne 285 ESI ?

So You need to find out why its on now See if there are any related engine codes causing a de rate ! also I don't know what kind of work u do However looking a the pic just an observation the turbo appears to have been getting a bit warm indicating a boost leak a split in the after cooler or gaskets as Pro Mentioned! U may have repaired this issue with the things you have already done! You need to see what codes it has logged that MAY reveal more !I agree with Pro It could indeed be a wire issue!

IT is original The first 2 years of E9 Was the same almost primer color salmon brown at one point they did robins egg blue as well! just a little before the 4 valve head was introduced!

Go to the right side of the engine if the turbo has little tin slave cylinder bolted to the bottom it is a waste gated turbo!

Won't likely change your issue ! Having said that I have had good idling engines come in for a cam change due to lifter failure and leave the shop with (a lope )At Idle I was never able to cure this issue so if there are suggestions on this I'm All Ears as well! I'm All Ears as well

Way To make noise Buddy Hopefully this goes some where!

Yes cal code

I vote Scania need a V8 on our roads 😎

Yup You Are correct ! how ever If you are not privy to all the info you can be led on a wild goose chase like this one! And WE would not have Thought of this scenario if it weren't happening till it was brought to my attention by Macktech689! and being able to experiment with it first hand ! customer has not had issues with using 15/40 up to this point 10/30 now the accepted norm for oil so we all have to adjust to this! Like everything we now have experience! This should be added to a (Rough running when cold ) A topic in Case base reasoning ! 😉 Right at the VERY TOP ! First Question !!! Is your engine equipped with the proper Viscosity oil !🤔 Now that we are aware of the issue He can use this oil during the warmer weather and change over in winter if he needs to ,not a problem ! Comes down to experiences!

Sorry only have examples of a gray engine doing this how ever if this is the first run RE check the valve set Bud to loose of a set on one exhaust will cause this on a gray engine this is a sign of lifter failure on a gray engine ! Check that all the valve yokes are in place yada yada GET IT CHECKED! Mp engines have been known to drop a piece out of the valve face as well !

Makes me wonder if they are looking in the right place ODVIOUSLY NOT! have they done ANYTHING with the dpf or scr box??? restriction is what I'm thinking!?? Anyway should be out of warranty soon then it will be your problem!😡Make Some NOISE BRO!

Did you replaced the rocker shaft bolts? I Would!!!

Sorry bro !! I would like to rephrase that comment for ya Tech they charge what the part is truly worth ! Their not tryng to sell you a new truck by making it not worth while to fix !! They are just selling parts to fix A worth while truck!! Just sayin!