4R100 Issues
Lead Driver
Joined: Jul 2017
Posts: 6,853
Likes: 2,330
From: WV
I mentioned above, the fluid level needs to be checked with engine running, in park (or neutral), and warm. It sounds from your statement that it was checked with engine off and cold.
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New User
Joined: May 2021
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I just warmed it up and checked it while running, the fluid level is still about an inch over the hot line. Am I gonna need to pump some of it out?
Frmr Ford Trans Engr
Joined: Aug 1999
Posts: 24,707
Likes: 2,628
From: SE Florida
Fluid level isn't causing this, but it isn't good to be that high.
Since it is still doing this I think you need to take the pan off and see if the check ***** are in the right places. Having check ***** in the wrong location can do all sorts of things, including what you're seeing.
Since it is still doing this I think you need to take the pan off and see if the check ***** are in the right places. Having check ***** in the wrong location can do all sorts of things, including what you're seeing.
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New User
Joined: May 2021
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Fluid level isn't causing this, but it isn't good to be that high.
Since it is still doing this I think you need to take the pan off and see if the check ***** are in the right places. Having check ***** in the wrong location can do all sorts of things, including what you're seeing.
Since it is still doing this I think you need to take the pan off and see if the check ***** are in the right places. Having check ***** in the wrong location can do all sorts of things, including what you're seeing.
FTE Chapter Leader
Joined: Jan 2005
Posts: 13,095
Likes: 4,705
From: Henderson, NV
The DTCs are gone, but I had to remove the pan, filter, valve bodies, accumulator, shift solenoids, and gasket to get to the bolts. I put everything back in where it was and torqued it to the right spec and once again it wont move forwards more than an inch when in drive.
I was a little unsure if I put the checkballs in the exact spot (I looked at diagrams but still couldn't tell for certain) would this cause any of these problems?
I was a little unsure if I put the checkballs in the exact spot (I looked at diagrams but still couldn't tell for certain) would this cause any of these problems?
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New User
Joined: May 2021
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It doesn’t sound like you bumped the manual shift lever out of place then. You may be dealing with more than one transmission issue. Gettting the checkballs in the wrong place and/or forgetting to put some of them back does nothing good for the transmission. Is your OD light still flashing now that you have cleared all your DTCs? You may have to go for a test drive before DTCs are set again.
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New User
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Correct, it will only go idle speed in D, 2, and 1 regardless of how much throttle I give it but I have perfect throttle response in reverse.
Frmr Ford Trans Engr
Joined: Aug 1999
Posts: 24,707
Likes: 2,628
From: SE Florida
I think it is not fully engaging forward gears. The PCM can recognize this and disable the throttle until the engagement is complete. If there is a checkball out of place it is possible that the engagement will never complete and you will never get throttle. I think you have to drop the valve body again and make sure ALL of the checkballs are in the right place.
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New User
Joined: May 2021
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I think it is not fully engaging forward gears. The PCM can recognize this and disable the throttle until the engagement is complete. If there is a checkball out of place it is possible that the engagement will never complete and you will never get throttle. I think you have to drop the valve body again and make sure ALL of the checkballs are in the right place.
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New User
Joined: May 2021
Posts: 18
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I think it is not fully engaging forward gears. The PCM can recognize this and disable the throttle until the engagement is complete. If there is a checkball out of place it is possible that the engagement will never complete and you will never get throttle. I think you have to drop the valve body again and make sure ALL of the checkballs are in the right place.
Put it all together and found that it still will drive forwards as long as I want in D, 2, and 1 at idle speed, but when I give it throttle the engine speeds up and the truck keeps moving idle speed. Yet in reverse it performs perfectly. Any ideas on what to check next?
