n 14 celect plus idles uneven when warm

Discussion in 'Volvo' started by Triple M, Jan 31, 2017.

  1. Triple M

    Triple M New Member

    N 14 select plus runs fine for 5or6 minutes when cold. Then starts skipping and idleing up and down. Runs fine at road speed no skip. Any ideas?
     
  2. Injun

    Injun Rabid Squaw Staff Member

    Mechanic man says check injectors, injector harness or possibly air getting into the fuel rail.

    Says on gasoline engines, it's a typical symptom of a vacuum leak.
     
  3. Blood

    Blood Driveler Emeritus Supporter

    +1 on the injector.
    Change the filters if they haven't been done very recently. Run an oil sample to check for fuel slobber.

    ADD a gallon of DECRON/MERCON AUTOMATIC TRANSMISSION FLUID to the fuel with a fill up.
    That may do the trick if you just have an injector fouling.
     
    Injun likes this.
  4. Triple M

    Triple M New Member

    Thanks for your help. Will check for air in fuel.
     
  5. Triple M

    Triple M New Member

    Have changed filters. Will try atf. Thanks
     
    Blood likes this.
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