Mackpro
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Everything posted by Mackpro
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There is a bulletin on this . Seems to only happen on the GU's even though it's the exact same set upon the cxu/chu. It's kinda a burping noise at the foot valve that vibrates the brake pedal in most cases.
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Only thing you could use off the AC engine would be heads, block, crank , rods and pistons . I heard using a AC cam in a AI setup works really good though. What's wrong with your old engine?
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The engine ecm in a way , gets to know various sensors and even the injectors and learns their usual readings and characteristics. When you replace one , it's a good idea to do a learned data reset so the ECM can relearn the new sensor . Not to confused with calibration codes which also need to entered when injectors are replaced on a MP engine. On engines sometime around 2014/2015, learned data reset was renamed and moved in PTT. It's under calibrations now and called something like sensor calibrate reset. Kinda confusing.
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Different engines. That year CV has the AI engine. CXN and CHN's of that year use the AC engine. Could be made to work but definitely not a drop in situation.
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The only MP8 paper service manual I have seen was for 2007/2008 emissions . For newer trucks you have to buy the big binder($350) with all the printed material from Impact. Basically they print it from Impact and put it in a binder and charge you $350. As far as differences in 2010 to 14 emissions engines are injector part numbers , doing away with exhaust shims, egr valve and diff sensor upgrades and SCR box is different part numbers. 2 piece valve cover. And of course software changes. Their might be more but that's all I can think of for now
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Yes , 2 days is about right, and that's if nothing breaks ( turbo / EGR bolts)
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Yes, one goes to compressor and other to drier. The other line by itself, goes to the first/wet air tank
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Air drier. The the exhaust port to the left in picture always stays open/ not plugged
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The MP engine really makes me appreciate the ETECH family of engines on how simple they were. Right now I'm overhauling a MP7 with 176,000 miles on it . My buddy in the next bay is overhauling a ASET . We started at the same time and he's going back together with his and I just got the head off on mine. They are a very time consuming to strip down or do major repairs to.
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Scr replacement on 2018 granite
Mackpro replied to Ezee's topic in Modern Mack Truck General Discussion
We have been lucky down here with our common rail engines , other than software and PM sensors we have had zero issues. Hopefully it stays that way! -
Scr replacement on 2018 granite
Mackpro replied to Ezee's topic in Modern Mack Truck General Discussion
New bulletin released last week on the 20EE code on the common rail engines. Very detailed info. Hopefully they got yours figured out. -
Scr replacement on 2018 granite
Mackpro replied to Ezee's topic in Modern Mack Truck General Discussion
P20EE is a NOX code which could be caused many different things. We have not seen this code here with our 17/18 common rail engines but have seen it on older trucks. Anything from EGR, turbo, injector to the DPF or SCR "hot box" could be the cause. There is a bulletin on it but mostly goes over making sure you do the tests correctly and not skipping steps and what info gets reported to Tech Support for review. -
Noisy PTO rattle with MP8's and Allison Auto
Mackpro replied to Deere Mack's topic in Engine and Transmission
My buddy's newest GU is coming in with full air controls for the bed unlike his other GU's . His driver requested it due to thatsvwhat he's used to. We will see how it sounds when it gets here in a few weeks. -
Noisy PTO rattle with MP8's and Allison Auto
Mackpro replied to Deere Mack's topic in Engine and Transmission
I will pass this info on my my buddy who has 3 GU's with MP8/ Allison. I'm pretty sure he has the cable up/down controls. -
2012 Pinnacle electrical fail silenoid/breaker?
Mackpro replied to KSTech's topic in Electrical, Electronics and Lighting
There are 2 fuse boxes , one on top of the dash and the other by clutch pedal inside on the fire wall. -
For the Nox code being FMI 13, replace the outlet nox sensor, it will be the one with the black connector . On nox sensors always remember , "Grey in the front and Black in the back". The newest nox sensors have a raised fence around the outside of the body , casted into the housing , remember to do a learned data reset or sensor calibration after changing sensor
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Pull the intake temp/boost sensor and blow the soot off of it and retry. If no luck I gotta bulletins on SPN 105 FMI 2 . It says to replace turbo wheel speed sensor , doesn't make sense but that's what it said
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Bigger engine and bigger hood = more weight. I'd say 98% of our customers here have no problem with 505 being the biggest HP they can get. They are more interested in how much the total package weighs. Less truck weight = more freight, corn , wheat or what ever you can haul.
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Sad thing is Volvo has been using this same set up back in the D12 days(12-15 years ago or more).
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A few months back they had us quit using graphite paste and only rub some oil on the injector seating area. Last time I checked, we are back to using graphite paste but only a very very small amount. I need to pull it back up in Impact and see if they changed their minds again! Lol
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Nope . Other than at school, we have never pulled the valve cover off a common rail engine here. A few Particulate matter sensors and software have been the only problems so far . And we have several running around here.
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I just put cups in a 2017 pre-common rail engine last week. It can happen to any of them.
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Welcome to the wonderful world of the AI engine. What's the last 6 of your VIN and I can check some stuff on it in the morning
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Did you flow test the 7th injector? When testing it with tech tool it should "chirp" and pulse/mist fuel. Not a constant stream of fuel
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I believe Mack still has the manuals on E-media on their website. I bought 5 or 6 different service manuals for the Freedom right before the truck came out. Turns out between our 3 dealerships, we only got one Freedom truck to sell.
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