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PTU fluid change frustration
- Thread starter ecoboostsho
- Start date
I changed it on my 2010 MKS with 50,000 miles today. I was able to remove the plug from the bottom using a swivel head ratchet. I thought the plug would be pretty tight but it came out surprisingly easy.
I was able to remove about 12 ounces. I just couldn't get the tube in as deeply as I would have liked to. I must have been bumping into a gear or shaft or something. The old fluid was much thinner than I expected - maybe because I did it while it was warm. I have a burn on my arm to prove that. Honestly, the old lube was not as bad as I expected. The plug is magnetized and it had some residue on it but I have seen much worse in transmissions or differentials.
I think this is good maintenance but I do not think mine was in dire shape. I might not drive my car as hard as some guys or maybe the fluid that I couldn't get out was really bad. I don't know but at least I feel better about doing it.
I was able to remove about 12 ounces. I just couldn't get the tube in as deeply as I would have liked to. I must have been bumping into a gear or shaft or something. The old fluid was much thinner than I expected - maybe because I did it while it was warm. I have a burn on my arm to prove that. Honestly, the old lube was not as bad as I expected. The plug is magnetized and it had some residue on it but I have seen much worse in transmissions or differentials.
I think this is good maintenance but I do not think mine was in dire shape. I might not drive my car as hard as some guys or maybe the fluid that I couldn't get out was really bad. I don't know but at least I feel better about doing it.
wasinger3000
New member
I drive the **** out of my car. The last 240 hours of driving I've averaged 17 mpg. Hah. So I assume the oil is drive dependant.
wasinger3000 said:I drive the **** out of my car. The last 240 hours of driving I've averaged 17 mpg. Hah. So I assume the oil is drive dependant.
LOL....Oh, mine knows what full throttle is and I don't let it forget that there are a couple of turbos down there just itching to make some power. However, I would say 95% of my driving is just commuting to work and cruising.
Again, I am not discounting the value of changing the fluid. It is definitely good maintenance but some might need it more than others - for whatever reason.
ecoboostsho
New member
I don't beat on my car by any means but I definitely drive fast. I build up a lot of heat cruising at pretty high speeds, passing etc...I did think of one more thing which is I actually had a leaking PTU seal (half shaft) 40K miles ago or so that was replaced under warranty. I "Assumed" they would have topped it off at the time but now I am wondering if they di or if the fluid got contaminated? I am going to reserve judgment until I do this again next weekend with my smaller tube and see if I can get more out. I do know what I removed was more sludge like than liquid.
When they changed the seal, they might not have gotten it full. Changing it again soon is a good idea. I had mine perfectly level and as soon as I took the plug out, some fluid ran down the side of the case so mine was plenty full.
It is not as comfortable but I think changing it when it is warm might help get more of it out. Just a thought...
It is not as comfortable but I think changing it when it is warm might help get more of it out. Just a thought...
ecoboostsho
New member
Good advice. I may try that...
jmr061 said:Just warm it up with a torch lol
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LOL...it is kind of ugly to work on when the exhaust is hot. I would at least drive it around the block to stir up the lubricant prior to sucking it out.
Other than a fried arm, skinned up knuckles, and a stiff neck from laying on my back and contorting my head so I could see what I was doing, I am glad I did this job. I think I need to make a better device to insert into the opening, though - maybe a piece of copper tubing, like someone else used. I just couldn't get the plastic tube to the bottom of the case without hitting gears or whatever. Maybe something stiffer with the right bend in it would work better.
ecoboostsho
New member
I actually went up and then over as weird as that sounds...then again I didn't get out much fluid.
ecoboostsho
New member
I actually had the dealer change the RDU at 50k.
IHeartGroceries
New member
Wait, so do PP equipped cars have the upper fill plug? But, there's a temp sensor occupying the orifice? Am I understanding this correctly?
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IHeartGroceries said:Wait, so do PP equipped cars have the upper fill plug? But, there's a temp sensor occupying the orifice? Am I understanding this correctly?
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Yup that's it exactly.
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which dtc's? And which tuner are you using?SHOnUup said:Curious this morning so I plug in tuner and get 5 dtc's. Also tuner showed that somehow it flashed itself back to stock? Can this even happen or is car not taking the programmed tune?
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