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Mackpro

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  1. Mackpro

    2002 mack

    Mackpro replied to Mudman's question in Mack Truck Q & A

    Should be on the top of the driver side fuel tank. Either the sending unit is bad or the wires from the sending unit to VECU Vechical Control Unit are broken which can be a pain to find
  2. Mackpro

    2002 mack

    Mackpro replied to Mudman's question in Mack Truck Q & A

    Fuel tank sending unit code
  3. Mackpro
    All 2004 and up CH/CHN and CX/CXN have the ASET AC engine. The ASET AI is only in the 2004+ CV, MR and LE and very very few of the last R series.
  4. Mackpro
  5. Mackpro
    There is a service bulletin on the 3-4 code SB221037. I believe it's been posted here before.
  6. Mackpro
    At least you won't be doing regens, several sets of injectors and cups, bull gears DEF injection issues like the red motors. Having seen what I've seen personally with the red engines. I'd take a 2004 ASET AC engine any day over a red motor. Even though I used to think that 2004 AC engines were the worst ever
  7. Mackpro
    FJH, I'm glad I'm not the only one ready to retire out of this madness that is Mack now. Dealing with corporate is getting worse every day. Only thing good is the pay in which I can't complain. 5 more years and I'm out for sure , if I can take it that long.
  8. Mackpro
    At our shop , on our DOT inspection forms , there is no mention of checking for fault codes. However , a state inspection or one done by a actual DOT officer may be different. I have heard of active ABS fault codes causing some trucks to fail some DOT inspections at weigh stations.
  9. Mackpro
    I have done it with the engine running, I believe the parking brake has to be set or no road speed detected.
  10. Mackpro
    With fault code active , turn cruise control switch off. Push and hold the Acel/Decel switch (either top or bottom) for about 3-5 seconds then release, the yellow lightning bolt will flash out a 2 digit code
  11. Mackpro
    A quick search I found this. http://www.trucktransdiag.com/downloads/4gen.pdf This might not be your exact model though. The process is different for each generation of transmissions. I even saw there were YouTube vids on flashing the codes out.
  12. Mackpro
    I believe you can flash out a code on the newer Allisons trans using the keypad.
  13. Mackpro
    All I know is don't take one out and put it in another truck. Causes all kinds of weird issues.
  14. Mackpro
    We have no dealings with anything Allison at our shop even though we sell quite at few new ones with Allison trans in them. We send them to our authorized Allison dealer
  15. Mackpro
    Check the o-ring on the bottom of the engine brake valve where it bolts to the head as well as the o-rings on the tube.
  16. Mackpro
    One year warranty on this issue. There's really not a official bulletin on this but I have some unofficial info from the higher ups that I can send you and explains it better. Message me for contact info and I can send it to you.
  17. Mackpro
    This truck is still at the 330/350 level. It's the exact same engine as the 400 and could be bumped up to 400 with a factory download. The torque output is the same either way at 1460. Anything bigger requires turbo and injectors and cam key way change. But with that trans you might need to stay with the maxi cruise setup. You could also get the 355/380 download that requires no parts and get 1560 torque output.
  18. Mackpro
    The foot valve is not centered in the mounting bracket . When you push down on the brake pedal , the pedal hits the plunger which presses on the foot valve. When the foot valve is not centered the plunger pushes down more on one side than the other of the foot valve and a small amount of air shoots past the seals into the cab
  19. Mackpro
    The first time they flew in a guy was when we were having all the wiring harness failures. You might put 2 or 3 on before you got a good one . That customer had about 10-15 trucks. Next time a tech was flown out it was over a unusual fault code for the DPF and Mack wanted to see for themselves what was going on. That customer had around 35 Mack dump trucks. This last time it was a individual single owner operator and a SCR fault and replaced the SCR hot box. The data logger really helped out on the last issue.
  20. Mackpro
    This is so true! Corporate calls the shots after a certain point , I feel for the customer. We have had corporate fly in guys with data loggers more than once.
  21. Mackpro
    Give me the model and last 6 of the vin and I can pull up in the Mack mainframe on Monday and see if it's still at that hp level
  22. Mackpro
    maybe. If you use the engine ECM that comes with your new (used) engine it won't match the VIn of the other ECMs and you will have issues in the future if any programming needs to be done. If you use the original engine ECM with new (used) engine then the injector calibration codes won't match and that can cause other issues
  23. Mackpro
    One of our customers has a 2008 CHU MP8 485hp that they use for moving heavy equipment. They got a new loader or some new super heavy piece of equipment that was to much for the 485 HP so they bought a 605 Titian. One day the Titian was busy so they hooked the 485 HP up to this 100,000 pound piece of equipment. It didn't make it far and broke the crank. Truck had under 150,000 miles on it. We put a Mack reman engine in it. That was the only crank failure we have seen in the MP8. One of our other shops have seen a couple MP7 broken cranks but unknown of details.
  24. Mackpro
    Mack corporate always told us not to worry about blow-by . Oil consumption is what they looked at. My friends 99 CL had bad blow-by from the 500,000 mile mark up to a little over a million mile mark when we over hauled it. Used a gallon of oil per 8,000-10,000 miles. Steady stream of blow-by don't bother me. It's the puffing blow by you gotta watch out for.
  25. Mackpro
    Lol , yep! I got the bottom end done and the head on . I'll send tomorrow on the cam, rockers , upper rear timing cover and injectors. Hopefully I'll be test driving Friday. Had 3 pistons with broken rings , did all 6 cylinders . We have seen several early MP7's do this .

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