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Mackpro

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Everything posted by Mackpro

  1. Mackpro
    Throttle pedal code. But the engine should not quit if this code goes active. You can unplug the throttle pedal on most all Macks (ETECH engine and up, cant remember on the VMAC series engine) and the idle will go up to 900 rpm but never die.
  2. Mackpro
    Is your 2003 460HP an ASET (EGR engine)? The 2006 you mentioned is a 460P with 487 HP is a ASET engine. Usually 2003's are ETECH (CCRS) engines. The two engines are wildy different and your better off with the ETECH engine. Unless you like changing high dollar EGR coolers and valves and turbos. If your 2003 somehow does have a ASET 460E (460HP) it can be bumped with a software download at a dealer to 460P. No parts change needed. Send we the last 6 of your VIN on the 2003 and I can see what can be done.
  3. Mackpro
    Sorry for the late responce but you can now sign up for Mack Parts online system and view the same parts breakdowns as the dealer. Dont know whats involved in signing up but heres the link. http://www.macktrucks.com/parts-and-services/parts/select-parts-purchasing/
  4. Mackpro
    Whats the actual code #? Mack has a bulletin that comes out every week or two with common problems and fixes, even for older trucks..
  5. Mackpro
    The factory radios are hooked into all the ECM.s on the truck. we can reprogram the radio for different issuses and there are even malfunction codes that show up on PTT for the radio. We have lots of complaints on the factory radios with the hand free built in.
  6. Mackpro
    What year trucks?
  7. Mackpro
    Changing a TRW box on a 2014 CXU today. We have no problems out of the Sheppard M series on the new trucks. One of our death wobble/tire wear problem CXU's had its steering box changed when it was a month old.
  8. Mackpro
    Sheppard has their service manuals on line for free. Kinda hard to find them on there though. Im going with air in system or something floating around in resivore clogging supply to pump. I assume its a 92 series gear , the M series sometimes had places to bleed the air out.
  9. Mackpro
    In my notes here, My DSM said to make sure the caster is 3 to 3.5 degrees before installing the bronze bushings and steering stabilizer. This axle has been around and not changed since around 2005. Really dont know why we are getting all the complaints of "death wobble" and tire wear. Dont know what has changed lately. We also have some bad cab shake complaints on the full flaring day cabs whne following a van trailer. I have test drove and verified the cab shake on a new day cab and it was scary! mack does have a fix for that issue.
  10. Mackpro
    Its just not offical yet and has to be approved by a DSM ( to get Mack to cover it under warranty or goodwill). We put the bushings in ( dont ream them, you want them tight) and install the steering damper/stabilizer. If that dont fix it, they have a new thicker front axle to install ( but this is rare). The newest trucks coming out just started having the heavier axle beam and bronze bushings. This all came out about 2 months ago but like I said still not official.
  11. Mackpro
    There are some new top secret bronze bottom king pin bushings that just came out. The dealers DSM should be contacted and get the new bushings installed. Part # 4103-7421416557. This is for the FXL sealed hub style axle.
  12. Mackpro
    CHN/CXN had ASET E-7 engines, CXP/CTP had non-DPF MP-7 engines only, then latter came CHU/CXU, they had MP engines with DPF then latter SCR was added. The CMM/CMH I have no idea, are thoses export models?
  13. Mackpro
    According to the Mack tune up manual, you should be getting 24-32 psi. also check your intake manifold gaskets and the air compressor intake piping over to the intake manifold.
  14. Mackpro
    All AC/AI ASET engine take the straight key way regardless of HP level. Only the older ETECH 98-02 ( pre-CCRS engines) used the offset key ways. The 355/380 puts out the same torque as a 427HP. To bump any higher you gotta change the turbo and injectors and do the download. If your gonna do that might as well go all the way to 460P. All parts and labor will get close to if not over $5000
  15. Mackpro
    Had a new 2015 CHU in our shop on Monday and the DEF guage would not work. After spending all day on it we finally found that the Turbo actuator had a short in the J-1939 communication line and was somehow affeccting the DEF guage. Turbo/actuator was working fine and no low power complaint but that was a hard one to figure out.
  16. Mackpro
    The filters are in the pump. However I have rarely seen a pump last long enough to need the filter changed. LOL. Ill see if i can attach a service bulletin about it. MTPI 258-008PB.pdf
  17. Mackpro
    If your truck has an EGR valve toward the rear of the exhaust manifold, it could be that opening or closing. Also if the has a turbo with an actuator on it , that could be normal. as long as its not leaking exhaust anywhere, its probably good. being an export model from the US i dont know what kind of emission system would be on the truck/engine.
  18. Mackpro
    Your truck might fall into this range of bad clusters. dash drop out.pdf
  19. Mackpro
    You can get a custome parts book by serial # for $395 or a CD for up 20 different trucks (the way I understand) for $295. You can order it on the Mack website in the E-media section,
  20. Mackpro
    info here sb266014 jake lash.pdf sb266012 jake screws.pdf sb266015 jake oil line covert.pdf sb266017 jake info.pdf
  21. Mackpro
    The kit was to help with Jake brake issues on engines with high miles and low oil pressure, if your engine brake works good when hot this migh not help.
  22. Mackpro
    Mack alway told us , dont change the cam bearings unless its grooved up bad enough you hang your finger nail on the #2 and #5 cam bearing. We rarely ever put cam bearings in ETECH style engines. This was back around 2000 when we were doing 3-4 cam jobs a week under warranty.
  23. Mackpro
    On a disc its probably Volvo or mack only. We are online with Mack
  24. Mackpro
    In 1998 was the year the ETECH first started to appear. You could get the E-7 VMAC or ETECH engine. Is this an ETECH? Or a injection pump VMAC engine?
  25. Mackpro
    Its controled through the engine ECM. The ECM looks at coolant temp, intake air manifold temp and A/C head pressure ( and can be set up to turn on when engine brake is turned on). Any of these things can turn on the fan. 12 volts comes from the fuse panel and goes through the solenoid to the engine ECM. The engine ECM grounds the solenoid wire to turn on the fan when it sees the correct input from any of the above sensors..

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