Air leak issue

Discussion in 'Volvo Forum' started by bilyonfire, May 26, 2020.

  1. bilyonfire

    bilyonfire Bobtail Member

    1
    0
    May 26, 2020
    0
    Hi everyone, I have 2014 Volvo D13 ... Truck is losing air while I'm driving without pushing the service brake(Pressure in the F is leaking way faster then in the R) ...for example compressor pumps at 120PSI i hear the sneeze and after like 10 minutes my F gauge is showing 90 and the compressor starts pumping again while the R stays at 120! I already took it to couple shops replaced gauge sensors and purge valve kit and checked for leaks and they keep telling me there's is no leak!When truck is parked its not losing the air! Please help
     
  2. Truckers Report Jobs

    Trucking Jobs in 30 seconds

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

  3. jlawall

    jlawall Light Load Member

    57
    8
    Jan 29, 2011
    wapwallopen pa
    0
     
  4. jlawall

    jlawall Light Load Member

    57
    8
    Jan 29, 2011
    wapwallopen pa
    0
    Have you tried checking with truck off-key on around fan clutch connections? No air to it when key off only with key on after probably 5 minutes after key on. you've probably noticed your fan is engaged for around 5 minutes after startup then shuts off. At that point you would have air leak in that system if that 's the problem.
     
  5. Dave124

    Dave124 Light Load Member

    54
    31
    Mar 11, 2019
    0
    I had/have a bad fitting on the line that tee’s in from the transmission. But you can here it leak with key off. I wonder if it is just your suspension / air bags while driving functioning (levelling valve on and off) since you can’t hear anything with key off?
     
  6. 05vnl670

    05vnl670 Light Load Member

    155
    54
    Feb 17, 2013
    0
    I had a same problem. Mine air fitting on the fan was leaking, replaced with new fitting and the problem went away.
    Built up air pressure, make sure you climate controls are in off position and then turn the key on with truck not running. I was able to hear air leak from the fitting.
     
  7. devedo

    devedo Light Load Member

    103
    36
    Aug 11, 2015
    0
    Driver's side of the engine a little ways behind the fuel filter is a module that has some electrical connectors and a 1/4 air supply line (yellow or purple color) that has been prone to leak.

    There's also an air manifold mounted to the drivers side frame near the transmission with about 7 different sized air lines going to it that's notorious for leaking.
     
  8. Rob100100

    Rob100100 Light Load Member

    171
    94
    Mar 5, 2016
    0
    Bad levelling valve, air leak from airbag or connectors, many things it could be. Get a plastic spray bottle one third filled with soap and your butt under your tractor and start looking neighbour.
     
  • Truckers Report Jobs

    Trucking Jobs in 30 seconds

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

  • Draft saved Draft deleted