‘15 VNL 630 w/ D13 “Poor DEF quality”

Discussion in 'Volvo Forum' started by Trucker2211, Mar 17, 2018.

  1. nasriza

    nasriza Road Train Member

    2,120
    1,710
    Feb 1, 2013
    Chicago, IL
    0
    so yes the def tank is pretty easy to drain and clean up just warm water and that should take care of it, it has a plug in the bottom so you can drain it and rinse it i would also highly advise you run warm water thru all the def lines and make sure there is no build up, it shouldn't be being that the def system is designed to fully drain itself when the truck shuts off and when it sees the truck start it actually hits the pump and brings all the lines and everything to normal operating pressure. so tank is a good idea definately do the def filters there is two of them a big one and the small one on the pump inlet port actually inside the port remove line screw in a drywall screw and pull it up, other than this a couple of times of rinsing the tank with warm water and you should be golden.
     
    mortal_oean Thanks this.
  2. Truckers Report Jobs

    Trucking Jobs in 30 seconds

    Every month 400 people find a job with the help of TruckersReport.

  3. mortal_oean

    mortal_oean Bobtail Member

    39
    2
    Sep 13, 2014
    0
    Thanks you.
    And how would I run the water through the lines ? Have to take them off and put them back or just put warm water a few times in tank and start the truck ? Wouldn't the water go through doser to scr or it only does the spray when needed to burn soot ? And not when the the truck is start every time .
     
  4. nasriza

    nasriza Road Train Member

    2,120
    1,710
    Feb 1, 2013
    Chicago, IL
    0
    if you disconnect the line from def doser and start up truck will try to pressurize the system but problem is it might derate you if it doesnt see the system is pressurizing properly you can cycle it a few time and it should put everything thru. just make sure you do the same with clean def that way there is no water left in the system.
     
    mortal_oean Thanks this.
  5. mortal_oean

    mortal_oean Bobtail Member

    39
    2
    Sep 13, 2014
    0
    And if it does comes to derate then still run the cycle do the cleaning and put the lines back and at the end do force regen with codes reset that should take care of the derate .? And tap water is fine or distilled water ?
     
    Last edited: Oct 30, 2018
  6. Trucker2211

    Trucker2211 Light Load Member

    94
    88
    Mar 3, 2015
    0
    I did manage to find and cure my problem and I apologize for not posting my solution earlier but got really busy and simply forgot. Anyways, come to find out there was a bad downstream NOx sensor on the emissions system. Replaced that and have had no more problems since.
     
    Medysa79 and mortal_oean Thank this.
  7. nasriza

    nasriza Road Train Member

    2,120
    1,710
    Feb 1, 2013
    Chicago, IL
    0
    Tap water should be plenty fine u can do a ferret reset from scr system test and it will reset everything
     
    mortal_oean Thanks this.
  • Truckers Report Jobs

    Trucking Jobs in 30 seconds

    Every month 400 people find a job with the help of TruckersReport.

  • Draft saved Draft deleted