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Isx cm870 egr issue 2007 volvo 670 no dpf only egr

Discussion in 'Trucks [ Eighteen Wheelers ]' started by Kuldeep, Mar 15, 2015.

  1. Mar 15, 2015 #1
    Kuldeep

    Kuldeep Bobtail Member

    14
    1
    Jul 3, 2014
    0
    I have egr valve leak. Leaking collant mixed with soot. I want to unplug the egr and see if the truck runs properly. The egr temp gauage runs hot or shifts really quickly.

    Also on cold start the engine idles rpm keeps moving up and down.

    Can anyone tell me which sensor i need to unplug. And where its located.
     
    Kuldeep, Mar 15, 2015
    Kuldeep, Mar 15, 2015
    #1
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  3. May 4, 2015 #2
    wizbang

    wizbang Bobtail Member

    32
    6
    May 1, 2014
    b.c.
    0
    fast moving on guage, definitely exhaust back pressure sensor above exhaust and forward near water temp sensor, change it.
     
    wizbang, May 4, 2015
    wizbang, May 4, 2015
    #2
  4. May 5, 2015 #3
    sailboatjim

    sailboatjim Light Load Member

    292
    173
    Aug 27, 2014
    Boston, Mass
    0

    It will run fine with none of it but you may or may not have a check engine light.

    For test purposes only the sensor is located at the egr valve itself.

    [​IMG]
     
    sailboatjim, May 5, 2015
    sailboatjim, May 5, 2015
    #3
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