Trucking Jobs New Driver Jobs Flatbed Jobs Tanker Jobs Refrigerated Jobs Auto Hauler Jobs
Page 1 of 4 123 ... LastLast
Results 1 to 10 of 37
  1. #1
    Light Load Member
    Member Since
    Aug 2011
    Location
    Houston, TX
    Trucker?
    17 Years
    Posts
    188
    Thanks
    18
    Thanked: 35 Times

    Where IS EGR Valve on ISX?

    Does anyone have an image of the Cummins ISX EGR valve? I'd like to know where it is, what it looks like, and how to un-plug the thing. What I was told by a former mechanic was incorrect.


  2. #2
    Road Train Member Pablo-UA's Avatar
    Member Since
    Oct 2010
    Location
    Lugansk, UA
    Trucker?
    Trucking Industry
    Posts
    6,462
    Thanks
    24
    Thanked: 1,136 Times
    are you kidding? near the turbo.

    electrically driven. small cilinder. If old - red painted with engine. if was replaced - not painted

  3. #3
    Road Train Member
    Member Since
    Jul 2009
    Location
    Gardners,PA
    Trucker?
    35 Years
    Age
    58
    Posts
    3,110
    Thanks
    1,046
    Thanked: 2,332 Times
    It depends on what year ISX you have, up to '06 engine model (found in some '07 model trucks too) it is buried behind and slightly in front of the turbo. '07 and later engines it is on the driver's side.

  4. #4
    Road Train Member Pablo-UA's Avatar
    Member Since
    Oct 2010
    Location
    Lugansk, UA
    Trucker?
    Trucking Industry
    Posts
    6,462
    Thanks
    24
    Thanked: 1,136 Times
    EPA 2007 engines with CM871 really differ.

  5. #5
    Light Load Member
    Member Since
    Aug 2011
    Location
    Houston, TX
    Trucker?
    17 Years
    Posts
    188
    Thanks
    18
    Thanked: 35 Times
    It is an '05

  6. #6
    Road Train Member Pablo-UA's Avatar
    Member Since
    Oct 2010
    Location
    Lugansk, UA
    Trucker?
    Trucking Industry
    Posts
    6,462
    Thanks
    24
    Thanked: 1,136 Times
    pass side. near alternator

  7. #7
    Light Load Member
    Member Since
    Aug 2011
    Location
    Houston, TX
    Trucker?
    17 Years
    Posts
    188
    Thanks
    18
    Thanked: 35 Times
    Quote Originally Posted by Pablo-UA View Post
    pass side. near alternator
    Pablo-UA, do you have a pic of this thing? Do you know how, where to unplug it?

  8. #8
    Road Train Member Pablo-UA's Avatar
    Member Since
    Oct 2010
    Location
    Lugansk, UA
    Trucker?
    Trucking Industry
    Posts
    6,462
    Thanks
    24
    Thanked: 1,136 Times
    Quote Originally Posted by bossboy2 View Post
    Pablo-UA, do you have a pic of this thing? Do you know how, where to unplug it?
    try to google for it!

    and why do you wnat to unplug it? if it leaks exaust to intake it wont help! there is only way to block it with small steel plate but pay attention on higher combustion temperatures that may heart engine pistons

  9. #9
    Banned or Retired Magnum1's Avatar
    Member Since
    Dec 2010
    Location
    NJ
    Trucker?
    Trucker Husband
    Posts
    567
    Thanks
    177
    Thanked: 28 Times
    My Truckers Blog
    1

    Wrench

    Egr question to the knowledgeable: egr has two plugs, on the pre 2007 isx. Lower - 6 o'clock and upper: 3 o'clock.
    What do they read/do - each plug?

    I have taken the egr valve apart to clean it, putted it back together and installed it : this code came up : Mid 128 #pid 27 fmi 4. Thoughts?


    The Egr guts came out on me - I've reinstalled it back the best of I knew how.

    Correct me if I'm wrong : every time the cold engine starts, the valve should pull up and its motor whine, if you use the doctor's listening device on it, will be heard. I've Plugged the valve on, while the side cover was off, turned the key on and the valve went up / closed.

    Now, from what I've written up, anyone can tell me where I've screwed up? - is there the egr position device ? Can the valve over travel - if so , how?

    Plus, my VGt was replaced by the dealer.

    Thanx.

  10. #10
    Light Load Member
    Member Since
    Jan 2012
    Location
    Bourbonnais, IL
    Trucker?
    No
    Posts
    148
    Thanks
    1
    Thanked: 49 Times
    Quote Originally Posted by Magnum1 View Post
    Egr question to the knowledgeable: egr has two plugs, on the pre 2007 isx. Lower - 6 o'clock and upper: 3 o'clock.
    What do they read/do - each plug?

    I have taken the egr valve apart to clean it, putted it back together and installed it : this code came up : Mid 128 #pid 27 fmi 4. Thoughts?


    The Egr guts came out on me - I've reinstalled it back the best of I knew how.

    Correct me if I'm wrong : every time the cold engine starts, the valve should pull up and its motor whine, if you use the doctor's listening device on it, will be heard. I've Plugged the valve on, while the side cover was off, turned the key on and the valve went up / closed.

    Now, from what I've written up, anyone can tell me where I've screwed up? - is there the egr position device ? Can the valve over travel - if so , how?

    Plus, my VGt was replaced by the dealer.

    Thanx.
    If you're talking about an EGR from an ISX CM870, it is not field serviceable. The wire going into the silver cylinder is the stepper motor control, the other plug is the EGR position. If you took it apart, you ruined it since the unit does have to be timed. The code is EGR Valve Position Circuit - Voltage below normal, or shorted to low source crosses to a cummins code 2272. The valve does need to be replaced if this code is triggered due to a failed position sensor. If that is the only code active, replace the valve. If there are other codes active, please list them and I'll try to help you out the best I can.

Page 1 of 4 123 ... LastLast