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Volvo D13 Rpm fluctuate during idle when engine temp cold

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by aman0182, Mar 10, 2019.

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  1. Mar 10, 2019 #1
    aman0182

    aman0182 Bobtail Member

    5
    1
    Mar 10, 2019
    0
    Any help with this issue ,I have Volvo d13 2013 HP475 ,Engine hours 12100 mileage 427500 . Its RPM fluctuate whenever i restart it after one or two hour shutoff . It makes sound like some kind of pump running behind it during this process .it does it for 10 to 15 mins, mostly depends how cold is engine temperature . when temperature goes up to 130 F-140 F , RPM goes to normal . During this RPM fluctuation exhaust through steam or fog kind of smog. Any body can help what is causing this or it is normal ? Truck has new injectors , New def filter, SCR Catalyst , almost has new emission . Does this causing Engine coolant temp sensor or something else going in it ?
     
    aman0182, Mar 10, 2019
    aman0182, Mar 10, 2019
    #1
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  3. Mar 10, 2019 #2
    Newto Trucking

    Newto Trucking Medium Load Member

    359
    225
    Dec 26, 2013
    NE Illinois
    0
    Something like this
     
    Newto Trucking, Mar 10, 2019
    Newto Trucking, Mar 10, 2019
    #2
  4. Mar 10, 2019 #4
    aman0182

    aman0182 Bobtail Member

    5
    1
    Mar 10, 2019
    0
    yes same issue ..i have video but i could not upload . does it normal ?
     
    aman0182, Mar 10, 2019
    aman0182, Mar 10, 2019
    #4
  5. Mar 10, 2019 #4
    aman0182

    aman0182 Bobtail Member

    5
    1
    Mar 10, 2019
    0
     
    Last edited: Mar 10, 2019
    aman0182, Mar 10, 2019
    aman0182, Mar 10, 2019
    #4
  7. Mar 10, 2019 #5
    Newto Trucking

    Newto Trucking Medium Load Member

    359
    225
    Dec 26, 2013
    NE Illinois
    0
    Your problem is different from the previous video. It’s not normal, you might have a faulty boost pressure sensor or it could be your turbo VGT having issues. You need Volvo software to see what sensors are reading and go from there
     
    Newto Trucking, Mar 10, 2019
    Newto Trucking, Mar 10, 2019
    #5
  8. Mar 10, 2019 #6
    aman0182

    aman0182 Bobtail Member

    5
    1
    Mar 10, 2019
    0
    Thank you for the information.
     
    aman0182, Mar 10, 2019
    aman0182, Mar 10, 2019
    #6
    Newto Trucking Thanks this.
  9. May 8, 2020 #8
    Génesis780

    Génesis780 Bobtail Member

    1
    0
    May 8, 2020
    0
    We’re you able to fix this issue on engine please post what was repair to fix the rough idle
     
    Génesis780, May 8, 2020
    Génesis780, May 8, 2020
    #8
  10. Nov 30, 2020 #9
    Kennyuscg

    Kennyuscg Bobtail Member

    3
    1
    Oct 31, 2016
    0
    I have the same exact issue and my truck idles the same as the second video. Once it warms up it normalizes and truck runs perfectly fine.

    I’m wondering what kind of repair aman0182 did to fix this problem? My boost pressure sensor in new and no fault codes are showing when I brought my truck to my repair shop to get diagnosed. Even my shop doesn’t know what to do.

    Any experts or truckers who had fixed this kind of problem? Any help is much appreciated.
     
    Kennyuscg, Nov 30, 2020
    Kennyuscg, Nov 30, 2020
    #9
  11. Mar 4, 2021 #9
    Rajatoor

    Rajatoor Bobtail Member

    15
    6
    Mar 19, 2019
    0
    Did you find the issue on your truck, i got the same problem
     
    Rajatoor, Mar 4, 2021
    Rajatoor, Mar 4, 2021
    #9
  12. Aug 9, 2021 #10
    The_Truckr

    The_Truckr Bobtail Member

    7
    1
    Sep 30, 2011
    Artesia,CA
    0
    I had this issue an for me it was the turbo vgt I replaced it an the turbo an problem went away.
     
    The_Truckr, Aug 9, 2021
    The_Truckr, Aug 9, 2021
    #10
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