5R110W- No Forward or Reverse
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Junior User
Joined: May 2011
Posts: 71
Likes: 1
From: Molalla
5R110W- No Forward or Reverse
Toodling along to church this morning, everything just dandy. Turned right to get on the freeway and suddenly had no forward gears, just an engine revving. Coasted to a safe stop, reverse seemed to try but then decided not to. Park locks in OK. Thank you AAA. Not sure what happened to this thing. Don't want to yank it out if its a simple fix. Drivelines fine, no apparent fluid discharge other than the usual oil drips from the engine rear seal. Used the 4x yesterday, had issues getting in and out of 4-lo, had to turn off truck to have it disengage. 4-lo rarely works, has been difficult for a long while but probably another story. I don't think its the transfer case as it goes into park and stops rolling. Ideas? ScanGuage says no codes., 299,200 miles on it.
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Junior User
Joined: May 2011
Posts: 71
Likes: 1
From: Molalla
I have an old Autoenginuity plug but not sure it will do it. I’ll try.
Frmr Ford Trans Engr
Joined: Aug 1999
Posts: 24,739
Likes: 2,669
From: SE Florida
While I usually require codes to do any diagnostics, I can make an exception in this case. There is NOTHING electronic that can cause this. The ONLY way that you have park and a whole box of neutrals is when something mechanical broke inside the transmission. Or the trans ran out of fluid. Those are the two possibilities. So check the fluid, if it has fluid pull the trans out and rebuild or replace it.
Fleet Owner
Joined: Apr 2012
Posts: 27,307
Likes: 549
From: Spanaway
Mark this makes me recall the one you helped me with that did something like this.
The coast clutch has broken the sun gear off the housing.
After I pulled the trans I pulled it down. I removed the valve body and put in the air test
plate and every time I went to the coast clutch instead on the nice solid clunk on the piston
moving I got a air leak sound. This is what I found. I replaced the trans with a fresh Ford reman.
The coast clutch has broken the sun gear off the housing.
After I pulled the trans I pulled it down. I removed the valve body and put in the air test
plate and every time I went to the coast clutch instead on the nice solid clunk on the piston
moving I got a air leak sound. This is what I found. I replaced the trans with a fresh Ford reman.
Senior User
Joined: Oct 2007
Posts: 146
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Yaikio, thanks for the video I always wondered what that cause was??? That’s one expensive snap ring!
I had the same happen to me, no sign of slipping or harsh shifting, then at 40mph cruise it was like it went into neutral no forward or reverse. I got a bd transmission installed, it was the same price a as a new one from Ford.
I have had some compatibility issues with the BD transmission and the BD TAP shifter I never used the tap shift with the stock transmission so I can’t compare.
I had the same happen to me, no sign of slipping or harsh shifting, then at 40mph cruise it was like it went into neutral no forward or reverse. I got a bd transmission installed, it was the same price a as a new one from Ford.
I have had some compatibility issues with the BD transmission and the BD TAP shifter I never used the tap shift with the stock transmission so I can’t compare.
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Junior User
Joined: May 2011
Posts: 71
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From: Molalla
Thanks Mark, it has fluid so it appears a rebuild is in the cards. No idea on cost yet, may need to do junkyard for now. I have heard that the 2008 and newer models used a different pan, better filter? Is there any truth to that? Are they interchangeable? Any years I should try to steer clear of? BTW, there were no codes per the AE software. I had forgotten how that software worked; truck runs great if it didn't need gears. Thanks for your help!
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Frmr Ford Trans Engr
Joined: Aug 1999
Posts: 24,739
Likes: 2,669
From: SE Florida
There was a change to the pan and filter mid year 2008. The internal filter was improved to where it became better than the external filter, and the external filter was deleted. The pan and filter need to go together, the filter won't fit in the older pan.
Any year 5R110W will work. 2008 and newer is a bit stronger than the older transmissions.
The software works fine. It wasn't designed to set codes for a total failure. The codes are meant to help a tech diagnose failures. No help is needed for a total failure such as yours. It's pretty obvious. Do you want a code that says, "Something broke inside?" Since it broke you only get one chance to determine what happened, and we don't set codes on one occurrence, there has to be more than one. That's how we eliminate bogus codes.
Any year 5R110W will work. 2008 and newer is a bit stronger than the older transmissions.
The software works fine. It wasn't designed to set codes for a total failure. The codes are meant to help a tech diagnose failures. No help is needed for a total failure such as yours. It's pretty obvious. Do you want a code that says, "Something broke inside?" Since it broke you only get one chance to determine what happened, and we don't set codes on one occurrence, there has to be more than one. That's how we eliminate bogus codes.
Lead Driver
Joined: Mar 2010
Posts: 5,505
Likes: 257
From: Woodbridge, Ontario, CA
You will need to reuse your torque converter if you choose to install one from a 2008 or newer. Your torque converter uses six studs to secure to the flexplate while a 2008 and up transmission uses eight.
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Junior User
Joined: May 2011
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From: Molalla
M-Chan more great info thank you. I also found a 2005 out of a 5.4 gas motor. Guy says its a direct swap, meets the budget better, would it fit? Same thing on the torque, would I just need to reuse mine?
Lead Driver
Joined: Mar 2010
Posts: 5,505
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From: Woodbridge, Ontario, CA
Frmr Ford Trans Engr
Joined: Aug 1999
Posts: 24,739
Likes: 2,669
From: SE Florida
The torque converter is different. The gas engines have four studs. But that's the easy part. The hard part is that some of the clutches in the 5.4L trans have less clutch plates, so it isn't going to last very long at all behind a 6.0L. You could rebuild the 5.4L into a 6.0L trans, but if you use it as is, have a second trans on hand. You'll need it.
Lead Driver
Joined: Mar 2010
Posts: 5,505
Likes: 257
From: Woodbridge, Ontario, CA
But that's the easy part. The hard part is that some of the clutches in the 5.4L trans have less clutch plates, so it isn't going to last very long at all behind a 6.0L. You could rebuild the 5.4L into a 6.0L trans, but if you use it as is, have a second trans on hand. You'll need it.