Oil Change and PTU Change and MORE

[wasinger3000]

wasinger?

No PP here.   The more I read about the non-PP the greener the grass becomes on the other side... BMW 435xi here I come! Hah.

Seriously though... why did ford skimp on the ptu. I seems as though even in stock status the ptu is stressed. I'd hate to guess what my recently changed oil looks like after a 800 mile trip at 89mph.

 

[IHeartGroceries]

Looking forward to those RP UOA results too.
This has got to be figured out for PP owners. I'm closing the gap on 17K miles on my SHO with PP, and I really don't plan to go beyond 20.

I can't find that thread which describes how difficult or even impossible it is to change fluid on PTUs with the aux cooling, without some invasive dismantling. Winter is boring, with no gardening. I'm up for a challenge.

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[SHO-Pa]

Just curious, what was your method for changing the PTU fluid? I took mine to the ford dealership I bought it from and they told me they would have to pull the whole trans out and split it. Sounds like an unnecessary plan of action for just changing the fluid.
[/quote]

I followed the "tutorial" posted on this board. It was really helpful and its not too difficult. I think the wobble extensions would do the trick easily. I had a sensor in the way that I had to go up and over to get to the plug. You need some sort of pump/vacuum to get the grease - I mean lube - out and a hand pump and tubing to get the new stuff in.

To answer the other question, my SHO is non-PP.

One thought I had - is it the same PTU on the non-SHO awd Taurii? If so, does it have the same issues?

I'll try this exercise again in 10-15k miles and see what the results are.

 

[Spartn27]

Honestly from a economical and moral perspective, Ford should redesign the internal structure of the PTU for our platform while adopting it to the new 2015/16 refresh. They would have a more robust PTU to mate to the 3.5 EcoBoost which they're sill using and be able to perform a recall on older PTU's using the same part.

Increased oil capacity and gears made out of something other than aluminum would be nice and should be feasible for Ford.

 

[SHOdded]

Have to give credit to Ford though, at least they put cooling & monitoring on the later MY's (if only PP/police).  Wish it was retrofittable for sure!

 

[crash712us]

The gears are not made of aluminum, they are made of steel/iron. The high aluminum count in the sample could simply be cause by left over filings for manufacturing process. Other then that only a spun bearing would generate any aluminum wear.


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[SHO-Pa]

The gears are not made of aluminum, they are made of steel/iron. The high aluminum count in the sample could simply be cause by left over filings for manufacturing process. Other then that only a spun bearing would generate any aluminum wear.


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I agree. The aluminum was probably from the manufacturing process and they note that some of the other materials may be from the sampling tube or what not. Some are additives to the lube. IMHO, the biggest "take-away" from the exercise is the heat damage to the lube. Given how much I took out and how much went back, I do wonder if it was low from the factory )which would have only made the heat damage worse as less lube was doing more hot work).

 

[gad]

my turn
92000 km and probably never change

holy crap

new drain plug that 'll pierced when I change the down pipe because I do not WANT the PTU disassemble the car, I hope to make up

 

[SHOdded]

Glad you did the change!  Might even get you better times at the track   Great lift setup by the way, what is it and when did you install it?

 

[gad]

I plan to do so before the opening of the track here, beginning in March 2015, dp, 3 bar map, alky meth, air raid, and the famous torrie tune.

 

[SHO-Pa]

holy crap

Yup. That's pretty much what my plug looked like too. Its almost like the gear lube becomes a gooey grease rather than a flowing lubricant.

 

[integrity6987]

I did mine in Oct following the posted procedure (car has about 90K then).  It was not too bad a process - the car was on a lift.  Did the rear diff also.  Did not save samples.  Put Mobile 1 fully synthetic in as replacement.  As I recall I could only evacuate (using an electric sump vacuum) about 8-10 oz from the PTU, this is about half the of capacity stated in the 2010 Service Manual but I owe it to maybe not hitting the lowest point in the transfer case with the evacuation tubing.  The stuff I got out SMELLED terrible!  Story I've pickup up from these forums is this is due to lube used during assy.  I'm sure the mobile one is doing well.  I'll be watching for more results and will likely undertake this again in the spring.

 

[FPO]

I'm going to try to service the Explorer before 36k and upgrade the fluids...
I will send off samples ( If I dont  forget) 

 

[IHeartGroceries]

^Good info, integrity.

I won't have time this year, but hopefully at least this spring I intend to dig into my PP equipped '13 SHO and figure out how to get that damn pudding out of there. And you can bet I'll be sending that off for UOA. By this spring, I'll probably be sitting right around 20K miles.

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[Brucelinc]

The drain plug is magnetized so it will hold onto tiny metal particles.  I would not be alarmed by what looks like goo on the drain plug.  Automatic transmissions often have a magnet in the pan and they often look horrible while the rest of the transmission looks clean.

My PTU drain plug looked similar to the one in the picture but I sucked out about 10-12 ounces of lube and it actually looked very good after 50,000 miles and poured easily.  Gear lube will be black and it will stink after a relatively short  time.