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fjh

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Everything posted by fjh

  1. fjh
    aftercooler cracked or turbo or AIR FILTER ??? when you get home and after u check the air filter make a plug for the turbo out put side disconnect the hose from the turbo to the after cooler put regulated air to it 30 psi to start should find any leak you need to worry about! sometimes intake gaskets shit out as well this method will find ALL the leaks. Note you may have to turn the engine a bit by hand to get the valves to close enough to build preasure! MAKE SURE THE STOP IS PULL OUT!!!!! THESSE ENGINES START EASY USUALLY!
  2. fjh
    What color is the smoke! ? this may help us trll you what is wrong!
  3. fjh
    well it sounds like ya need to look into the blo by situation that don,t sound good is it puffing at the fill tube? if so you lkly got a bad hole!
  4. fjh
    Bud its been along go And I don't remember the full parts change sheet did you replace the damper!Is it possible we have an over fueling situation on 1 cylinder!
  5. fjh
    YES I believe the sensor is mounted on the lower rad just behind the bumper I am not positive why with park brake on either we have trucks that do it at a stop light foot on the brake . jf may be its tied in with the brake lights switch if this is the case this would be the answer to that question!
  6. fjh
    yup a tee you can use a quick release in both locations there if you cant find that! I highly doubt that will be a stocking item!
  7. fjh
    Maybe have the truck looked at have them check ambient air temp sensor! and inlet air temp could be getting a false reading from one or more sensors! also make sure the boot is sealing on the hood to the air cleaner!
  8. fjh
    Periodic heat ? Mode? We have several customer trucks that do this our climate is cool at times only once and a blu moon and have never nailed it down to one thing other than something in the programming telling the truck the incoming air needs to be heated for regening we were told by tech support that that this was periodic heat mode! could be the same instance in your case.
  9. fjh
    How cold is your climate?
  10. fjh
    We used to put the P10 on everything v8 to six cyl if its still available! as it was easier and cheeper to stock just one relay!
  11. fjh
  12. fjh
    If the mass flow tube is throwing a code the egr cooler is likly plugged or leaking coolant are you adding coolant?
  13. fjh
    The cup Failure thing is usually ( usually ) accompanied by HARD STARTING BUT not always . your symptom and how it is manifesting is why i am suggesting cups the under hard pull it gets worse! head gasket failures compressor failures I Am sure can happen aren't common, cup failure is better than it was .but still prevalent NOT FIXED just patched! egr cooler is still on the table as a suspect! pull the front hose and look but usually you would be throwing efficiency codes or egr related codes of some sort!
  14. fjh
    More than likly Cups! Stainless cup Did not totally solve this issue! Another bandaid attempt! At a fix! To get them thru the warranty period!
  15. fjh
    If your not having starting issues EGR Cooler is a more common issue than compressor ! cups can still be an issue if your not paying attention! Is it doing this after a hard pull or all the time?
  16. fjh
    Nothing it’s normal ! if it’s starting fine then leave it alone!
  17. fjh
    Maybe / maybe not http://www.truckinginfo.com/channel/fuel-smarts/news/story/2018/04/mack-plans-for-electric-refuse-truck-in-nyc-by-2019.aspx?ref=rel-recommended
  18. fjh
    Check your fuel preasure!
  19. fjh
    Could be the hose between the coolant manifold peices ! Very Common on a cold engine !A little more info would help! note that if the coolant has black oil in it it could have a failed engine oil cooler If it has yellowish look to it it can be a failed trans or fuel cooler If so equipped!
  20. fjh
    Definition of crazy ! Doing the same thing over and over and getting the same result! 😠
  21. fjh
    /be sure to check it the accesory relay is not dropping out when it quits check to see if the heater fan / and wipers still operate
  22. fjh
    Good to hear of the progress finally, definately keep us posted for the end result !
  23. fjh
    There torquing method is out to lunch in my mind tightening and loosening makes little sense in my mind how ever with such a wimpy bolt this method may be needed!we did some the other day we used oil! WHAT ever! any assembly procedure alterations will not totally correct a poor hold down design!
  24. fjh
    Yup oilly! also fairly common as strange as it may seem is injector orings fuel can leak up by the injector hold down threads ! and the fuel transfer pump shaft seal can leak another semi common issue!
  25. fjh
    Well your dealer did well turning it around quickly anyway! hopefully Mack don't wash their hands here keep making noise ! in their defense These power issues can be a bear to chase down! But if It aint right it aint right!

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