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DJE624
Guest
Power Take Off Unit. It sends torque to the rear wheels.
Guess who's car just got a PTU under warrenty...
- Thread starter itsacrazyasian
- Start date
Lol. They tried telling my father it was the turbos spooling when he took my car in for me :bangin: :bangin: I wanted to reach through the phone when he was telling me what they were saying. Idiots. I'll have to contact my cousin. He's an engineer for Ford. Maybe I'll have better luck with him.DJE624 said:
Night Hawk
New member
amen to that, keep tabs on the PTU fluid during maintenance sessions
itsacrazyasian
New member
me lol
itsacrazyasian
New member
I have not seen a how to nor have i searched for one. Takes about 45 min but i rack my car and pull the passenger tire off and inner fender liner out.
I had posted a link to a How-To by the_natrix on the Ford Edge Forum, if that's what you are thinking of. http://www.fordedgeforum.com/topic/10914-ptu-leak-failures/
itsacrazyasian
New member
Please use a quality 75w140 gear oil for the ptu. something better than the motorcraft oil. Funny thing is the factory fill on my town cars is good for over 300K but at 30K its BURNT in the ptu. gonna suck mine out and add a drain again and refill with amsoil next oil change. I'm curious to see what it looks like when i get 5k on it.
itsacrazyasian
New member
Neither have I.
Ford may argue that discoloration of the lubricant in the ptu is nothing to worry about but i certainly disagree. the discoloration comes from somewhere. either thermal breakdown or debris contamination. I'll be checking my ptu fluid here at the next oil change to see what it looks like and send some off for analysis. What i do know is on the fleet trucks i service, amsoil lubricant (we buy in bulk) has kept reoccuring failures at bay.
Unfortunely i don't have hard evidence yet to back my theory up.
Ford may argue that discoloration of the lubricant in the ptu is nothing to worry about but i certainly disagree. the discoloration comes from somewhere. either thermal breakdown or debris contamination. I'll be checking my ptu fluid here at the next oil change to see what it looks like and send some off for analysis. What i do know is on the fleet trucks i service, amsoil lubricant (we buy in bulk) has kept reoccuring failures at bay.
Unfortunely i don't have hard evidence yet to back my theory up.
SHOdded said:
Excellent idea... Seems like it's only $15-$20. Does anyone remember the name of the lab I've seen used by one of our members? We could send it to ford... etc.
I would agree with the unproven theory... and if it's not thermal then either something gets ground up, something chemically interacts with the PTU oil, or something is dissolving. Some of the PTU pics look like they were pour full of chocolate syrup!
Blackstone Labs http://www.blackstone-labs.com/
itsacrazyasian
New member
Update:
I've put 8000 miles on the car and recently started smelling gear oil after a spirted drive and parking the car. I racked my car yesterday and saw a little wetness by the ptu vent. I pulled the plug. I was NOT HAPPY. I need to take a pic of the fluid that came out but it looks like gear oil that has 100K on it that came out of my town cars. I sucked it out with a fluid extractor filled it with redline 75w140 (it was what i had in my garage) twice. Took it out for another spin and i don't smell it anymore. Confirmed it after 8 back to back runs at the drag strip tonight that the gear oil smell is gone. The PTU got a work out, car kept spinning the front tires till it would send power to the rear all night. Nice to see it went into the 12's tonight.
I've put 8000 miles on the car and recently started smelling gear oil after a spirted drive and parking the car. I racked my car yesterday and saw a little wetness by the ptu vent. I pulled the plug. I was NOT HAPPY. I need to take a pic of the fluid that came out but it looks like gear oil that has 100K on it that came out of my town cars. I sucked it out with a fluid extractor filled it with redline 75w140 (it was what i had in my garage) twice. Took it out for another spin and i don't smell it anymore. Confirmed it after 8 back to back runs at the drag strip tonight that the gear oil smell is gone. The PTU got a work out, car kept spinning the front tires till it would send power to the rear all night. Nice to see it went into the 12's tonight.
Only 8K on the new PTU? Was it really new or rebuilt? Did you check the level in it after installation? How much did you pull out? Standard PTU vent, right, not the upgraded one?