Trucking Jobs New Driver Jobs Flatbed Jobs Tanker Jobs Refrigerated Jobs Auto Hauler Jobs
Results 1 to 4 of 4
  1. #1
    Bobtail Member
    Member Since
    Feb 2014
    Trucker?
    37 Years
    Posts
    1
    Thanks
    0
    Thanked: 0 Times

    Cummins engine not enough boost

    I have an ISX 550 Cummins engine. It is not getting enough boost. Only about 12 pounds of pressure. I found a crack in the air to air charger and replaced it. Still not getting enough. Any ideas?


  2. #2
    Light Load Member bgxpress2006's Avatar
    Member Since
    May 2013
    Location
    Montreal, Quebec
    Trucker?
    7 Years
    Age
    38
    Posts
    237
    Thanks
    30
    Thanked: 63 Times
    did you check your rubber boots going to the air to air

  3. #3
    Light Load Member
    Member Since
    Sep 2012
    Trucker?
    Trucking Industry
    Posts
    124
    Thanks
    6
    Thanked: 29 Times
    check the hose at the air compressor intake. it will rip on the back side

  4. #4
    Medium Load Member
    Member Since
    Dec 2010
    Location
    northeast
    Trucker?
    Trucking Industry
    Posts
    376
    Thanks
    55
    Thanked: 57 Times
    Check the map sensor, prolly packed full of carbon. Check the exhaust back pressure sensor on the thermostat housing too. Also may need to run a turbo test through insite. If the vanes are sticking it may cause this issue too

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •