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Pedigreed Bulldog
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Posts posted by fjh

  1. On 10/13/2021 at 3:41 PM, Joey Mack said:

    I tried to buy from P.A.I. myself, ,but i'm a small fry, so I could not create an account...  Heck,, give it a try.... Do you have the Mack part number's?

    just  Create and an account under a a bogus name joe blo repairs or something like that I did that just so I can cross reference parts when the parts guys can find stuff I go look for my self! you can order I'm sure

    • Like 1
  2. 2 hours ago, Joey Mack said:

    "F"  I'm glad you posted the fuel pressure info, I didn't know the pressure was reduced for the ASET's... I have 4 of them in the fleet I maintain. I will keep that in mind for the future.. Jojo

    Yup joe I didn't want to create an argument about it the opportunity arose to correct the statement here so I took it! 😇 The hundred psi statment was not an un truth just old news that had been revised!😌

    • Like 2
  3. 12 hours ago, MillennialTrucker93 said:

    So did some digging and found the part you were talking about out of the block but my local dealer and anything I could find on this  valve only says 54psi +-7psi relief/check valve. The part number is 691GC228M2 valve. 


    The pressure started out At 100 psi when the eteck first came out They lowered it as they had trouble with the EUP orings were hard to seal As I said earlier long as the fuel pressure stays between 60 and 80 full load  it will run and pull fine ! The key here is the fuel pressure should stay above 60  when under load! When you stomp on the pedal in a no load condition the pressure should Go Up Not Down! The numbers you posted are good numbers! Very reasonable from what I have witnessed over the years!


    just sayin

  4. 15 hours ago, 63BMack said:

    Thanks guys, I'm checking on the price difference between Mack parts and PAI. I will probably go with PAI. I still have to pull the pan to see if it's standard. I'm going to look the cam over real good even though I didn't have any metal in it. I gonna hate it when the old Mack mechanic's and Mack parts guys are gone. I'm almost 65 years old so I guess I won't have to worry about that. Just have a couple of old trucks to take to truck shows.Thanks again. 

    So just  something to think on Here ! If indeed this engine had an over speed go on! These old style lifters didn't take kindly to being over speed conditions!  The work face is brazed on and would shatter or crack! Personally Knowing what I have seen over the years here ! If indeed this engine got over sped  and  you are doing all this work , its worth the extra 500 or 1000 bucks to pull the cam and buy A SET of lifters from PAI  and replace em!   We just done a Cam here Sept 20th 2021 on a 88 RB . Mack parts  was twice the price  PAI did'nt have the cam at that point So we  was stuck with the Volvo Criminalized pricing  for the Cam  but PAI  had the new style lifters for a third less! and in this instance the lifters are the weak point! and if the truck has the old style lifters It may be a safe bet to change em! In my opinion  Not worth taking a chance if your going this far! 


    Just Sayin!

    • Like 2
  5. Build a plate to install under the egr valve ! How ever after several miles /KMs the egr code will come up due to lack of egr flow! On the older engines this didn't effect performance ! I am not sure on the later models if a derate will occur ! the one I did was an 03 - 04 the guy put 1.5 plus Kms on it  with out issue!

  6. 19 hours ago, Andre Wright said:

    Update got my truck back yesterday and its fixed the Mack dealer was right. So apparently a bad transmission wiring harness will cause your transmission to slip

    Good to know thanx for posting your fix!

  7. On 9/30/2021 at 11:56 AM, Onyx610 said:

    I’m not the one looking for advice. I posted about what could possibly be going on with the fuel pump….

    The fuel pumps on the a feable  on these the shaft seal can give out and they can wear to the point they wont pump !

  8. 21 hours ago, Onyx610 said:

    The gear on the pump shaft could be fine at idle and lower rpm range, but once the rpms get higher and the shaft spins faster the gear could spinning on the shaft. Could be….

    Bro (Take the advice) posted  !  Not trying to be an ass here!  But were trying to help! you need  check the fuel pressure you need to have at min 60 psi prefer a little more how ever.........!

    Just sayin! 

    Also remove the elbow at the primary fuel filter from the tank and check for debris in it I have seen rags fuel conditioner lid inserts and rocks stuck in this elbow! several times! just some more things to look for! This will likely show up on the fuel pressure check as low pressure when you stomp on the throttle the pressure will drop off if there is a restriction or a loose gear , where normally it would increase some!

    • Like 2
  9. Quick check of the pan plug should  tell the tale on this if there are pieces on the plug there you likly have a cam failed or the engine has been over speed and bent some valves ! Just a place to start! also  you can pull the valve covers and check to see if the push rods are straight! 

    • Like 2
  10. 13 hours ago, Vmac3 said:

    Can't believe the dealer said they can't check the software level because it has no codes......S.M.H.......

    There were several software updates that were released to correct all kinds of issues and several for low power, although it helped a bit, this model was lazy. 

    Drive it like you stole it.


    (Rephrase) There were several software updates that were released to TRY and correct all kinds of issues and several for low power!

  11. On 9/16/2021 at 6:46 PM, kt_Engineer said:

    What transmission do you have? If it is 12-speed MDrive, something seems to be confusing TECU where it is trying to go to low range (from high range) or could not go to Hi-Split in main box. Maybe splitter synchronizer is going bad.

    I agree it sounds like the synchronizer this a weak point on the Auto a fairly common  Failure specially I its left with the second speed programing in reverse ! This is a theory  however ! But it Seems to knock the sycro cone loose from the hub due to its design it seems to happen more frequently on those with the two speed reverse program left enabled!

  12. 11 hours ago, Mackpro said:

    Very early CV’s had the last of the early Etech engines in them. This was only for maybe 6 months to a year then the CCRS ETECHs for maybe a year and a half then finally the AI ASET till 2007. Which also in 2007 you could get the CTP with the non-DPF MP7. This only lasted 1 year then the GU’s came out in 2008 with MP7 or MP8. And now we have the GR . There was also the CXP road tractor with the MP7 non-DPF that only came out in 2007 

    This Mp7 year was the only one that kept the spinner oil filter of old!   Then 2008 they chucked that idea too made it totally pure bread Volvo trash  Swedish Vallhunds instead of a bulldog on the hood! 

     Joe I"m A 18 Sp fuller believer ! Even thou I have got a bit of work out of the Mack trans over the years durability wise fuller is as good as any  Mack trans  and as I have said before cheaper to repair !Mack has innovations that work nice like the multi speed reverse that is nice to the dump application thou! That Is not offered by fuller !the expense issue still remains!  

    • Like 1
  13. 13 hours ago, Elitedownunder said:

    Liner protrusion is all good with .002 across all and heads are fine ….except for pulled inlet valves. So next anyone.

    If you measured  where Joe said to measure there you WANT to See 24 or better for a 470 hp engine Just sayin! You can MAYBE get away with less on a lower HP engine but not highly recommended  ! And 002 thou definitely wont cut it! .002 between liners is OK under the same head As long as the lowest is 24  or better!

    ALSO note !  Have you pulled the injectors? Were there any with carbon on the bottom of the bore where they seal ? We have ran across them where the injector COULD NOT be removed from the head  even with a porta power they were so clogged with carbon! And there are instances where the compression can get by the injector sleeve ! Seen it happen.


    Just sayin

  14. Not the same!  but a  similar instance , We once had a fellow that was doing head gaskets on an engine ! Went to to do the valve set on the engine and an it came up semi hard on cyl 3 after some investigation with a screw driver down the injector hole found he had left a rag on the piston ! Just a tad embarrassing ! At the time we had a very aggressive boss that tried to push people on time quoted job you know! PUSH PUSH PUSH! We also had a guy leave the little plastic cork in the turbo oil feed on a 3406 980 loader honest mistake as two different guys were doing the job ! But  Shit happens ! took out two turbos before finding the plug! 🥵

    • Sad 1
  15. On 9/15/2021 at 3:40 AM, Madre said:

    I got a Mack granite 2007 is running after 30 min die very hard to restart the truck

    Both gas filter,fuel pump ,replace the timing sensor

    still do the same time

    Model Cv713

    Bro in your case You may have injector/ injector cup issues ! yet another thing that can cause a fuel hard start issue a lot less evident on The earlier engines, but can happen! usually presents it self after working hard for several hours! you  shut off to fuel up / have lunch!  then have to prime it to start!

  16. On 9/5/2021 at 6:09 AM, Glensts said:

    I need to follow this as well, 2013 i bought this year, 3 hours into first trip I had the same thing but was 45 minutes from home and it gave me 60 minutes.  Did a regen and have never had the issue again.  My 2016 has a soot gauge which is nice to see so you can tell if it needs a regen soon. We're all short hauls so tough to get a good burn some days.

    Where is this speed sensor and how did that let you limp home? Did it give you your speed back?

    If you have an Mdrive the speed sensor trick will likley not work as the trany has a brain as well needs to see speed to shift! The manual trans you have control of this  ! the vecu doesn't know the truck is moving so it won't de rate you! sensor  is on the tail end of the trans in front of the first u joint yoke! Scr derate is more viscous than dpf derate  Dangerous in my opinion  ! How ever someone dreamed up the the rule ! guess we have to live with it!

    You have a perfectly driveable truck that has to crawl along  a free way at 5 mph is a tad ridiculous! a more reasonable 45mph seem more in line!

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