I cycle through all gears and none will engage

Tiny
JSUDELL
  • MEMBER
  • 2014 FORD F-150
  • 3.7L
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 125,000 MILES
I replaced the transmission filter and fluid. I cycle through all gears and none will engage. The fluid is showing exactly between the hot and cold marks. I used the correct filter and fluid. I have dropped the pan two additional times to ensure the filter is set correctly. I allowed the engine to run for about thirty minutes. I did notice that the transmission temperature dash indicator was still showing cold, so I think it is not circulating through the filter and pump. I also disconnected the battery to clear the computer. Any advice would be greatly appreciated!
Sunday, November 25th, 2018 AT 7:26 PM

8 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 110,101 POSTS
Hi and thanks for using 2CarPros.

I may know what happened. There is a seal on the tube portion of the filter. I attached a picture of the filter. Make sure you installed that seal. Also, if you are sure you replaced it, make sure the old one is not still in the valve body. This guide can help you as well.

https://www.2carpros.com/articles/automatic-transmission-problems

Check out the diagrams (Below). Let us know what happens and please upload pictures or videos of the problem.
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Sunday, November 25th, 2018 AT 8:21 PM
Tiny
CJ MEDEVAC
  • MECHANIC
  • 11,005 POSTS
Check to see if the "O" ring is still in place on the filter. Insure the old one came out.

If the "O" ring is pinched, damaged, or gaped open away from its sealing surface the pump may be just sucking air instead of fluid.

Below is a picture from "Prodemand".

Keep us posted as to what you find.

The Medic
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Sunday, November 25th, 2018 AT 8:30 PM
Tiny
JSUDELL
  • MEMBER
  • 5 POSTS
I forgot to mention the guy at the auto parts store initially gave me mercon V I filled the pan with it. Then when I returned, he said that I was supposed to have mercon LV. I drained the pan and replaced it with mercon LV. I just read you are not supposed to mix fluids. I do not know if it actually mixed since I do not think the fluid was circulating.
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Monday, November 26th, 2018 AT 6:52 AM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 110,101 POSTS
Welcome back:

If it did not actually circulate, it should be fine. It would not cause an instant failure. Do you remember the o-ring on the gasket that I mentioned?

Joe
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Monday, November 26th, 2018 AT 12:15 PM
Tiny
JSUDELL
  • MEMBER
  • 5 POSTS
I am going to check the o-ring when I get off work today.
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Monday, November 26th, 2018 AT 1:24 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 110,101 POSTS
Sounds like a plan. I have a feeling the old one is still stuck in there and not allowing the new one to seat.

Take care,
Joe
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Monday, November 26th, 2018 AT 2:40 PM
Tiny
JSUDELL
  • MEMBER
  • 5 POSTS
It was the filter. The intake was about an inch longer than the original part, causing it bottom out. Thank you all for your help!
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Monday, November 26th, 2018 AT 7:02 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 110,101 POSTS
Happy to help. I had a feeling it was something like that. I figured the old plug was still in there blocking the new filter. Thus, no fluid could be drawn in. The good part, at least the wrong fluid never circulated through the transmission.

Take care and let me know if you need anything in the future. Also, I hope you and your family have a great holiday season.

Joe
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Monday, November 26th, 2018 AT 7:34 PM

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