My perfect Ranger with an imperfect transmission...

[TJC]

I was already concerned about the high trans fluid temps... as a result I've already purchased the PPE deep aluminum pan and was waiting for the warranty to expire before making the change. I also purchased that insanely expensive dip stick.

I may move the timeline up.

Just now approaching 15k on my 2020.

- T

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[CB750F]

Guess I'm screwed cuz I'm no bueno on #2 throught #5......

Same here, but I'm only at 30k.

 

[Msfitoy]

Lord knows our trucks look amazing with this tire size, but do we think this could have been the issue? My understanding is with a tire that size, something needs to be done in terms of gearing to compensate? Best of luck OP, hope you get this resolved soon!

True, but remember I drive my Ranger like grandma...slow accelerations slow turns long stops and only towed a lawn mower for a couple miles each year...

 

[Big Blue]

Actually they do give 5 tips on increasing reliability on the Ford transmission.

Tip #1 - Perform Timely and Proper Maintenance
Tip #2 - Minimize Average Operating Temperature (AOT)
Tip #3 - Avoid High Stress Applications
Tip #4 - Keep your Torque Multiplication Factor (TMF) Down
Tip #5 - Upgrade your Valve Body

All valid suggestions, not what I would call tips. Other than #1, which is always a good idea. They give no specifics other than how their "upgraded" transmission is better than OEM.

 

[Frenchy]

All valid suggestions, not what I would call tips. Other than #1, which is always a good idea. They give no specifics other than how their "upgraded" transmission is better than OEM.

And the best part about #1 is Ford states the normal interval is 150K. I would say do it more often of course, there just isnt an easy way

 

[Muscleford]

I just replaced my 265-65-17 Hankooks with 265-65-17 Michelins... and the diameters were different.

Can you explain this for me. It does not agree with what I have been told by several tire dealers.

 

[Frenchy]

Can you explain this for me. It does not agree with what I have been told by several tire dealers.

It's simple. Even though they are classified as the same size different tires(both make and model) will be different between each other in diamiter and width by a little bit. If you go to Tire Rack and look up a tire size and look at all the tires available you will find in the specifications that they are a little different all together.

 

[HenryMac]

Can you explain this for me. It does not agree with what I have been told by several tire dealers.

From the Discount Tire Website:

Hankook Dynapro ATM, The OEM tires that came on my Ranger

________________________________________________________________

The Michelin tires we recently had installed

 

[Big Blue]

Can you explain this for me. It does not agree with what I have been told by several tire dealers.

Yes tires of the same size will vary in diameter between manufacturers. Usually only a few decimal points. Tires of the same size from the same manufacturer will also vary. For example look at Hankook,s DynaPro ATM. The LT265-65-17 version is 31", the P rated version is 30.6". They all will weigh different also, which also plays into driveline load.

This whole discussion is really just a bunch of speculation and name calling, mostly at Ford, until we find out what the real issue with Sid's transmission is, if we ever do.

 

[TJC]

All valid suggestions, not what I would call tips. Other than #1, which is always a good idea. They give no specifics other than how their "upgraded" transmission is better than OEM.

I read the article differently than you did. They mentioned 3 ways to limit excess heat (Tip #2), adding a cooler (1) and / or a deep pan(2) to maximize cooling, as well as removing the thermostatic(3) control for item 2 - all three good ideas (dare I say tips). We already know the trans oil temps are high at 200F

I am not going to quote each indepth tip write up, but they had valid suggestions for improvements.... I guess I don't know the difference between a tip and a suggestion.

I do know that this incident validates what I have long suspected ... that the temperatures of 200F+ are not good for sustaining a transmission for long durations (>200K miles), - which is my minimum target for my truck.

It may be very good for EPA mileage and for Ford Service and Parts Business, but it sucks for transmission life. Same goes for not changing the transmission oil and filters at regular intervals.

I also believe that I don't need to purchase what Nextgen is selling to achieve that goal (but that valve body sounds very nice).

I take free competent advice where ever I find it.

-T

 

[Frenchy]

I read the article differently than you did. They mentioned 3 ways to limit excess heat (Tip #2), adding a cooler (1) and / or a deep pan(2) to maximize cooling, as well as removing the thermostatic(3) control for item 2 - all three good ideas (dare I say tips). We already know the trans oil temps are high at 200F

I am not going to quote each indepth tip write up, but they had valid suggestions for improvements.... I guess I don't know the difference between a tip and a suggestion.

I do know that this incident validates what I have long suspected ... that the temperatures of 200F+ are not good for sustaining a transmission for long durations (>200K miles), - which is my minimum target for my truck.

It may be very good for EPA mileage and for Ford Service and Parts Business, but it sucks for transmission life. Same goes for not changing the transmission oil and filters at regular intervals.

I also believe that I don't need to purchase what Nextgen is selling to achieve that goal (but that valve body sounds very nice).

I take free competent advice where ever I find it.

-T

For transmission temps it is best to try and keep it as low as possible. The only options we have for added cooling is the PPE Pan that adds the fins(and a drain plug) that alone will make a huge difference. Disabling the thermostat function is a bad idea. The computer control should still be in place as it will help the transmission get up to operating temps faster and help control it. As for a more efficient cooler.... Unfortunately that I am aware of i dont think there is one available

 

[Big Blue]

For transmission temps it is best to try and keep it as low as possible.

Where exactly is this knowledge coming from? From older automatic transmissions. The 10R80 is a totally different animal with totally different fluid. We all know how the 10R80 shifts when it's cold. It's actually design to use engine coolant to help it heat up. It and it's fluid are designed to operate at engine temps.

The only options we have for added cooling is the PPE Pan that adds the fins(and a drain plug) that alone will make a huge difference.

No argument here, this will help keep the temps from rising above intended levels under loaded conditions

Disabling the thermostat function is a bad idea. The computer control should still be in place as it will help the transmission get up to operating temps faster and help control it.

Totally agree, see comment about cold shifts above.

As for a more efficient cooler.... Unfortunately that I am aware of i dont think there is one available

They do make adaptors to do this. It requires removing the OEM heat exchanger to tie the cooler in. Mostly for competition purposes.

 

[dtech]

.This whole discussion is really just a bunch of speculation and name calling, mostly at Ford, until we find out what the real issue with Sid's transmission is, if we ever do.

That's ridiculous blaming Ford and/or calling names as the answer to the failure is in every article I've read and in the opening paragraph about the 10 speed tranny - a joint development between Ford and GM.

People tow heavy stuff with this tranny, people that design things understand there will be occasional early failures, I think it's built Ford tough.

 

[Frenchy]

Where exactly is this knowledge coming from? From older automatic transmissions. The 10R80 is a totally different animal with totally different fluid. We all know how the 10R80 shifts when it's cold. It's actually design to use engine coolant to help it heat up. It and it's fluid are designed to operate at engine temps.

No argument here, this will help keep the temps from rising above intended levels under loaded conditions

Totally agree, see comment about cold shifts above.

They do make adaptors to do this. It requires removing the OEM heat exchanger to tie the cooler in. Mostly for competition purposes.

Since ask it is related to all Automatic Transmissions. I wont argue that the 10R80 is designed to operate in a certain Temperature Range. That said when transmission temps are getring close to 250° F wich is the point the ULV transmission fluid starts to deteriorate you can start to have problens. During the time I had my Ranger(yep still miss it) I would see the transmission temps get that high when OffRoad at slow speeds in heavy obstacles and when towing up some very steep grades. I'm sure that did not help the transmission what so ever. That is why the PPE Pan would make a huge difference.

 

[Big Blue]

That's ridiculous blaming Ford and/or calling names as the answer to the failure is in every article I've read and in the opening paragraph about the 10 speed tranny - a joint development between Ford and GM.

People tow heavy stuff with this tranny, people that design things understand there will be occasional early failures, I think it's built Ford tough.

I'm confused, are you saying that the joint development or GM is the reason for the failure of Sid's transmission. Both of which are not real answers.

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