Transmission Issues - 5R110
Frmr Ford Trans Engr
Joined: Aug 1999
Posts: 24,723
Likes: 2,648
From: SE Florida
If the temp sensor is bad the gauge on the dash will read either full hot or full cold. If it's reading right the sensor is fine.
On the 2-3 shift SS-B is releasing the overdrive clutch while SS-C is applying the intermediate clutch. I'd lean towards a problem with SS-C because SS-B also applies the overdrive clutch for both the 1-2 and 5-6 shifts.
Replacing all of the solenoids isn't a bad idea. Find out what that costs and decide.
On the 2-3 shift SS-B is releasing the overdrive clutch while SS-C is applying the intermediate clutch. I'd lean towards a problem with SS-C because SS-B also applies the overdrive clutch for both the 1-2 and 5-6 shifts.
Replacing all of the solenoids isn't a bad idea. Find out what that costs and decide.
Cargo Master
Joined: Apr 2013
Posts: 3,087
Likes: 24
From: Central Florida
If the temp sensor is bad the gauge on the dash will read either full hot or full cold. If it's reading right the sensor is fine.
On the 2-3 shift SS-B is releasing the overdrive clutch while SS-C is applying the intermediate clutch. I'd lean towards a problem with SS-C because SS-B also applies the overdrive clutch for both the 1-2 and 5-6 shifts.
Replacing all of the solenoids isn't a bad idea. Find out what that costs and decide.
On the 2-3 shift SS-B is releasing the overdrive clutch while SS-C is applying the intermediate clutch. I'd lean towards a problem with SS-C because SS-B also applies the overdrive clutch for both the 1-2 and 5-6 shifts.
Replacing all of the solenoids isn't a bad idea. Find out what that costs and decide.
FTE Leadership Emeritus
Joined: Sep 2000
Posts: 23,174
Likes: 1,678
From: Stephensville WI
Yes, the 5R110W is really a 6 speed transmission, but it only uses 5 forward gears at a time. The transmission normally shifts 1 2 3 5 6. In very cold weather, it shifts 1 2 3 4 6.
FTE Legend
Joined: Jan 2009
Posts: 80,535
Likes: 97
From: Norlina NC
ive had a couple ford techs tell me funky shifts could be a symptom of the TFT sensor going.. usually the shift problems happen at specific temp ranges... for instance when i was diagnosing my shift problem it was only happening when cold i kept having delay shifts if i had to get on it before the tranny warmed up.. truck would act like you shifted it into neutral between every shift.. once the tranny warmed up the problem went away.. since replacing the TFT in mine this problem has gone away... havent had any winter cold temps yet though to be 100% since i did it.. so will see when winter comes.. but i was having the same problem even during the summer temps just about every morning...
but to me yalls problems sound like theyre coming from a completely different source there...
but to me yalls problems sound like theyre coming from a completely different source there...
Cargo Master
Joined: Apr 2013
Posts: 3,087
Likes: 24
From: Central Florida
I struggle to believe this. Maaaaaaaark?
Junior User
Joined: Sep 2015
Posts: 68
Likes: 0
I had asked Mark about this at one point. Below, find a brief summary of my question and his response. I hope he doesn't mind me reprinting this here to save him from rewriting it. Apparently, temperature has a strong effect on how fast the different clutches can engage. In short, one shift pattern is slightly more efficient, but can't be used if the temperature of the transmission fluid is not favorable.
Quote:
Originally Posted by Wambo
Very interesting stuff regarding the 3-5 shift. 30 ms shift time seems remarkably quick for a truck!
>>...small window of vehicle speed that it can downshift from 6th gear to 4th gear instead of 5th gear. This was done to give a bit more acceleration at the speed.
The shift time is about 0.400 sec. The two clutches have to complete what they are doing within 0.030 sec of each other. If the intermediate finishes releasing 0.100 seconds before the direct is completely applied the engine speed will flare. If the direct finishes applying before the intermediate has released, all parts of the gearset are held from rotating. This means the output shaft stops turning RIGHT NOW and so do the rear wheels.
Quote:
Originally Posted by Wambo
Very interesting stuff regarding the 3-5 shift. 30 ms shift time seems remarkably quick for a truck!
>>...small window of vehicle speed that it can downshift from 6th gear to 4th gear instead of 5th gear. This was done to give a bit more acceleration at the speed.
The shift time is about 0.400 sec. The two clutches have to complete what they are doing within 0.030 sec of each other. If the intermediate finishes releasing 0.100 seconds before the direct is completely applied the engine speed will flare. If the direct finishes applying before the intermediate has released, all parts of the gearset are held from rotating. This means the output shaft stops turning RIGHT NOW and so do the rear wheels.
FTE Legend
Joined: Jan 2009
Posts: 80,535
Likes: 97
From: Norlina NC
as to why FMC labeled it a 5 speed when theres really 6 i couldnt say for sure... but anywhere else you look it comes up as a 6 speed tranny..
Thread Starter
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5th Wheeling
Joined: May 2017
Posts: 47
Likes: 0
Have any of you guys replaced the Solenoids in your transmissions before ?
This article seems really good : 5R110W TorqShift Shift Solenoid Replacement Guide
I have a question though,
Apparently the part number for : SSPC-B (shift solenoid B, overdrive clutch) IS :
3C3Z-7J136-AB
I seem to be having difficulty finding that part, most places offer this part :
3C3Z-7J136BA
Is it the same ?
Thanks!
This article seems really good : 5R110W TorqShift Shift Solenoid Replacement Guide
I have a question though,
Apparently the part number for : SSPC-B (shift solenoid B, overdrive clutch) IS :
3C3Z-7J136-AB
I seem to be having difficulty finding that part, most places offer this part :
3C3Z-7J136BA
Is it the same ?
Thanks!
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Frmr Ford Trans Engr
Joined: Aug 1999
Posts: 24,723
Likes: 2,648
From: SE Florida
The transmission is really a two speed direct and overdrive transmission in front of a three speed transmission.
First gear is both transmissions in low gear, 3.11:1 ratio.
Second is the front in overdrive and the rear in first, 0.71 x 3.11 = 2.2:1
Third is the front back in low and the rear in second, 1.0 x 1.54 = 1.54:1
Fourth is the front in overdrive and the rear in second, 0.71 x 1.54 = 1.09:1
Fifth is the front in low and the rear in third, 1 x 1 = 1:1
Sixth is the front in overdrive and the rear in third, 0.71 x 1 = 0.71:1
As you can see fourth and fifth are almost the same ratio. So it NEVER uses both fourth and fifth. When it is below 0°F it shifts 1-2-3-4-6. Above 0°F it shifts 1-2-3-5-6. We changed it below 0°F because we couldn't make the 3-5 shift work right when it was cold.
As noted above there is a small speed window where it can downshift from 6th to 4th, instead of 6th to 5th.
Because it only uses five ratios. It never uses all six. Ever.
FTE Legend
Joined: Jan 2009
Posts: 80,535
Likes: 97
From: Norlina NC
It's true. It is a five speed transmission with six forward ratios.
The transmission is really a two speed direct and overdrive transmission in front of a three speed transmission.
First gear is both transmissions in low gear, 3.11:1 ratio.
Second is the front in overdrive and the rear in first, 0.71 x 3.11 = 2.2:1
Third is the front back in low and the rear in second, 1.0 x 1.54 = 1.54:1
Fourth is the front in overdrive and the rear in second, 0.71 x 1.54 = 1.09:1
Fifth is the front in low and the rear in third, 1 x 1 = 1:1
Sixth is the front in overdrive and the rear in third, 0.71 x 1 = 0.71:1
The transmission is really a two speed direct and overdrive transmission in front of a three speed transmission.
First gear is both transmissions in low gear, 3.11:1 ratio.
Second is the front in overdrive and the rear in first, 0.71 x 3.11 = 2.2:1
Third is the front back in low and the rear in second, 1.0 x 1.54 = 1.54:1
Fourth is the front in overdrive and the rear in second, 0.71 x 1.54 = 1.09:1
Fifth is the front in low and the rear in third, 1 x 1 = 1:1
Sixth is the front in overdrive and the rear in third, 0.71 x 1 = 0.71:1
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