TSB: 19-2052 - 2019 Ranger - Engine Cold Start Runs Rough / Rough Shifting Transmission

Discussion in 'Issues, Repairs, Warranty, TSB, Recalls' started by unixadm, Mar 13, 2019.

  1. unixadm

    unixadm Active Member

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    TSB: 19-2052 - 2019 Ranger - Engine Cold Start Runs Rough / Rough Shifting Transmission

    Some 2019 Ranger vehicles built on or before 11-Feb-2019 may exhibit a rough, excessive fast idle and/or a rough shifting transmission condition when the engine is cold. This may be due to the powertrain control module (PCM) software parameters including cold start and warm-up drivability, idle speed control, and fuel injection delivery strategies. To resolve the condition, update the PCM software.

    APPLICABLE VEHICLES
    2019 TRUCK: FG P375N RANGER

    19-2052.JPG
     
  2. rangerdanger

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    Dropped off my Ranger today for this exact issue. I had to tell them the TSB # since they had no idea how to diagnose rough shifting for such a new vehicle.
     
  3. Dan Kobler

    Dan Kobler Well-Known Member

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    So I'm not as automotive inclined as other people. But I was noticing that my truck seems to have an aggressive idle when I would remote start it. Once I'm inside the vehicle I don't notice it as much as the cabin is quiet. However standing outside, compared to my escape which sounded very mellow when starting up. I thought it was just because it is a truck. Sounds like this might be something to have the dealer take a look at?
     
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  4. Strokerduster

    Strokerduster Well-Known Member

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    Hearing that B-29 fan starting up......
     
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  5. toddiscdn

    toddiscdn Well-Known Member

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    Like he said:)

    Since you are not mechanically inclined, he means the fan is a clutch fan and is quite noisy on start up untill it warms up.
     
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  6. rangerdanger

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    Just got my Ranger back from the shop. They had to call Ford Corporate to confirm that my truck was eligible for the TSB (It was made before Feb 11).

    They ran a PCM update and then some datalogging to make sure the transmission shift points were within spec.

    I’ll drive it for a few days to see if that did anything.
     
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  7. rangerdanger

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    It’s been 4 days since the TSB was done and the difference is night and day. Before the transmission shifting would be rough and overly aggressive, now it’s much smoother and I’m noticing the transmission staying longer in gear.
     
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  8. t4thfavor

    t4thfavor Well-Known Member

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    Another reason I'm going to have to drive my dads truck to see if the transmission shifts like mine does. It does seem "confused" at times after which it will pick a gear with significant force behind it's decision.
     
  9. Doc

    Doc Well-Known Member

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    Good Deal !
     
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  10. C.moore01

    C.moore01 Well-Known Member

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    @rangerdanger did yours have a harsh shift or delay shift going to reverse in the mornings?
     
  11. RangerKody

    RangerKody Well-Known Member

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    Going tomorrow to have mine updated!!
     
  12. Beef_Stew

    Beef_Stew Well-Known Member

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    Did your idle rpm's go down after the update? Mine idles around 700-800 Rpm's and I'm not sure if that's high or not
     
  13. rangerdanger

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    I noticed reverse was funky, like there was a delay. Not sure if this TSB address that issue or not.
    I don’t think that is considered high. My Ranger never experienced a rough idle, only weird transmission shifting.
     
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  14. Geoff

    Geoff Well-Known Member

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    Your idle is pretty normal.
     
  15. MT19RANGER

    MT19RANGER Well-Known Member

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    Scheduled mine for next week to get taken care of. Have rough running when starting in the mornings and hard shift of transmission on mine.
     

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