Mackpro
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Everything posted by Mackpro
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Finally got that Bulletin to attach , it might help in the future. snm 13- 022 kev2 spn5394 fmi17 diagnostic.pdf
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Good news. Sometimes the codes wont go inactive after replacing the NOX sensors , we have to clear the codes and test drive or do acouple of regular regens.
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Blow-by filter on timing cover clogged. removed top cover and wash out wire mesh screen. If it has milky sludge in the filter you might have leaking liners.
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Your local dealer has to apply for you ( I think) . Its called "Trucks Customer Portal". We have never set it up for any one yet.
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vecu replacement 98 mack
Mackpro replied to John Joseph Degnan's topic in Electrical, Electronics and Lighting
Is it an ETECH engine? -
Check this out injector harness.pdf
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I updated my post above yours, Look at getting thoses recalls done
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Yes , your software/datafiles all are up to date. What size tires you got on the truck ? The truck came with 22.5 wheels, If someone changed wheels and put 24.5 full size tires on it with the 4.42 rear gears it might seem sluggish. Also there are 2 open recalls on this truck. One for a faulty brake valve and one for steer axle beam inspection.
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Whats the last 6 of your vin? I can see if the newest software was downloaded. On the manifold, any 1999-2002 CH or CX should work, the ones for the MR and LE and CL are different though. I have heard of people doing this but dont know 100% if it really helps alot.
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Doing another NOX sensor replacement this morning. Super nice 2012 Rawhide has Active code of SPN-5394 FMI-17. Truck has been to 4 dealers in the last 4 weeks and nobody changed the NOX sensors. I hope this fixes it! LOL
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The ASET AI exhaust manifold that came on your truck is very small compaired to the regular ETECH style manifold. I have heard that if you do replace the manifold with an ETECH style maifold you must also replace the turbo, as the larger air flow will over spin the AI turbo and cause it to fail. That was from our turbo rebuilder. As far as poor throttle responce and being sluggish, have you had the "Step 12B" download done to it yet???
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Order the paper manuals direct from Mack. go to Macktrucks.com, then click on "parts and service" then go to service and go into the Mack e-media system . Thats the same thing us dealers have to do to order manuals.
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The newest NOx senor part numbers are 21636091 for the pre-SCR (bottom of the DPF) and 22014032 for the post -SCR (SCR box outlet) . Working on a truck now that came in with SCR derated 5MPH. Active codes SPN-4094 FMI-18 and SPN-5394 FMI-17. Did all the DEF doser test and all good. replaced both NOX sensor with newest sensor, updated software in engine and SCR ECM's and did crystal sub regen and a regular regen, all OK. I do about 1 a week of these.
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Never heard of the SCR " mixing box" go bad. Are you doing the crystal sublimation regens? They are different type or regen that dont dose DEF and get hotter. There is a Mack service bulletin that has some tips on the 4094 code. It's SNM 13-022 if u have acess to the Trucks dealer portal through Mack. I cant seem to attach the bulletin or even make a copy of it for some reason. If the DEF doser seems to be working correctly, replaced both NOx sensors as said above.
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It has had a new cam installed not long ago, not to many warranty claims on this truck. The software and datafiles have never been upgraded. The 2004 CH-CX were the worst year. In 2005 the CXN-CHN came out with the wider frame to allow bigger radiator and after cooler. The EGR cooler problems never really went away but if you keep the screen in the lower radiator "Y" pipe clean it will really help alot.
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Glad I saw this as I was wondering what I was gonna have to do when a ODBII truck came in for ABS problems. We aslo have the Cummins Insite program but haven"t even thought about that yet ODB hook up yet.
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Heres some of the bulletins. Coolant push 1.pdf coolant push 2.pdf coolant push 3.pdf
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CH Steering Column Rattle
Mackpro replied to bass coast earthmoving's topic in Modern Mack Truck General Discussion
Here is the manual on the steering column. Best i remember there is a allen screw 6-8" down through the center of the shaft that can be tightened up. I hope your able to view the manual as my laptop is having a hard time downloading it.http://trucksteering.trw.com/Service%20Manuals view the steering column manual. -
Dont feel to bad, here where I work, were running 2-3 weeks behind on the trucks with complex engine/DPF/SCR and elecrtical issuses. Job security for me.
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Pull the cover off the fuse box down by the clutch pedal. Pull out a few of the relays one at a time and check them for being wet or green corrosion. Make sure u put them back in the correct position. We had a few trucks with leaking windshields and cabs that let water in on top of the fuse box. But then again it could be a bad starter.
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Yes, they are having issuses with the flex pipe. However I cant seem to find any bulletin from Mack about this. I had a 2013 truck in the shop with high soot and Mack Tech support told me to check the flex pipe and see if the inner liner had slid back into the DPF. It had not so mine was Ok but this means they have been seeing this issue.
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Granite Mack MP8-445C or MP8-505C
Mackpro replied to MightyFruit Trucking's topic in Engine and Transmission
We bump alot of 445's to 505E's. They both have the same torque rating so you can run the smaller trans. We sold alot of road tractors with the 445 and small trans. Mack would turn on the 505E download ( for around $1000) but would not do the 505M or 505C due to the higher ft lb output. We even told them we changed the trans and they still said no. -
Injector Cup tools, where can i get in the US?
Mackpro replied to Dagda52's topic in Modern Mack Truck General Discussion
A Mack dealer can order them for you. They have a Mack/Volvo part # on them just like any other part would. Here is the instructions and part#'s of tools for the copper (old style flat bottom cups) and the new stainless (conical/ wedge ) cups. The extraction tool is the same but the install tools are different copper cups.pdf stainless conical cup.pdf -
As Macktech689 siad its a 460P, Back on 5/3/11 it was at a dealer and have the software and data files in the ECM's updated. Should pull pretty good when running correctly. Whats your turbo boost pressure under a load? We usually see around 33psi on one that runs as it should.
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