Transmission Jerks when Coming to Stop

Discussion in '3rd Gen - 2007 - 2017' started by Hoos95, Jul 4, 2019.

  1. Hoos95

    Hoos95 Full Access Members

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    2007 2WD 336K miles with original engine and transmission.

    Recently the transmission will jerk around 15-5 MPH when coming to a stop. Today, it’s gotten more severe. Any help/recommendations is appreciated.
     
  2. stamp11127

    stamp11127 Super Moderator Staff Member

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    How often have you serviced the transmission?
     
  3. Hoos95

    Hoos95 Full Access Members

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    Transmission has never been touched: original fluid, filter, etc.
     
  4. Hoos95

    Hoos95 Full Access Members

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    I do plan on dropping the pan next weekend and replacing oil, filter, and cleaning the magnet. Is there anything else that I should replace while I have the pan dropped?
     
  5. stamp11127

    stamp11127 Super Moderator Staff Member

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    I'm curious as to how long you think a transmission is supposed to last without being serviced? It has been running for the last 12 years....
     
  6. bobmbx

    bobmbx Full Access Members

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    More than 336k?
     
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  7. Hoos95

    Hoos95 Full Access Members

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    Removed the bolt to check the fluid level and the dipstick is broken... Don’t believe it broke in the process of loosening the bolt
    757A4E41-5A3F-4F79-8145-DE34211353D7.jpeg
     
    Last edited by a moderator: Jul 5, 2019
  8. Hoos95

    Hoos95 Full Access Members

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    UPDATE:

    Purchased a new dipstick and plug from local Ford dealer. After having the engine off for a few minutes, I started to remove the old plug and broken dipstick. As I was loosening the bolt, transmission fluid begun to seep out and I tightened it back up and waited for the fluid to cool down and contract. I was then able to get the bolt off without liquid coming out. Since the engine was off for about 15 minutes, I checked the transmission fluid level with the new dipstick and the entire dipstick was covered in liquid - up to the end of the dipstick where it makes contact and rests on the transmission case.

    Since you are supposed to check the level at operating temperature and while the engine is at idle, how is it possible for the fluid level to basically overflow a few minutes after the engine is off with a transmission that has never been serviced?
     
  9. 99WhiteC5Coupe

    99WhiteC5Coupe Full Access Members

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    I believe that when the main transmission pump is operating (engine on), that the pan fluid level drops somewhat, due to the fluid being pumped through the transmission. When the engine is shut-off, the pan fluid level increases as the fluid flows back to the pan.
     
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  10. JExpedition07

    JExpedition07 Ultimate Member Supporting Member

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    You are correct, engine on fluid is being sucked up and circulated. Once it’s turned off it all settles into the pan.
     
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