PTU fluid change on 13+ PP
- Thread starter 91hybrid
- Start date
First off thank you 91hybrid for the instructions. Without his write up, frankly I'd still be working on changing the fluid. I wanted to post a few comments from my experience in changing the PTU on my 13 SHO PP. I decided to change my fluid at 27,000 miles.
In general there is very little room to work. Getting to the PTU sensor (the fill opening) is extremely difficult. I bought a similar wrench head that fits onto a ratchet extension however it must have been bigger because it was extremely difficult to get it to fit within the space given. Make sure you have the similar tool 91hybrid shows initially, as I don't see any other options regarding access to the sensor. I also had a difficult time removing the down pipe on the passenger side first. I was in the process of replacing the OEM down pipes and found if I removed the driver side down pipe first, then the driver side down pipes. Make sure to disconnect the PTU sensors and down pipe sensors before removal.
As mentioned I changed the PTU fluid at 27,000 miles. Upon draining, the fluid looked more like oil and less like gear oil. No clumps or slug! All great news in my mind. I drained a total of approximately 14oz to 15oz. While I don't think I needed to change the PTU fluid this early, I do have a piece of mind now that the fluid has been changed and is new. Again these are just my observations based on my car.
In general there is very little room to work. Getting to the PTU sensor (the fill opening) is extremely difficult. I bought a similar wrench head that fits onto a ratchet extension however it must have been bigger because it was extremely difficult to get it to fit within the space given. Make sure you have the similar tool 91hybrid shows initially, as I don't see any other options regarding access to the sensor. I also had a difficult time removing the down pipe on the passenger side first. I was in the process of replacing the OEM down pipes and found if I removed the driver side down pipe first, then the driver side down pipes. Make sure to disconnect the PTU sensors and down pipe sensors before removal.
As mentioned I changed the PTU fluid at 27,000 miles. Upon draining, the fluid looked more like oil and less like gear oil. No clumps or slug! All great news in my mind. I drained a total of approximately 14oz to 15oz. While I don't think I needed to change the PTU fluid this early, I do have a piece of mind now that the fluid has been changed and is new. Again these are just my observations based on my car.
I have a question for those who have done the PTU fluid change on the 13 and up PP. What does the other end of the temp sensor wire look like? Could it be threaded thru a 15mm deep well socket and then the socket turned with Channellocks? Would there be room for a socket? Just asking because I am getting ready to do it.
I have an extended warranty & great relations with my Dealer so essentially was quoted roughly around 300.00 for the PTU Flush and as a courtesy they performed the procedure for 150.00 using my own fluid and they flushed it out twice and two quarts are needed,definitely would recommend Amsoil,Redline 75w-140 gear oil,BTW maybe you can negotiate some kind of deal since you just purchased your car from them and also think they stated 3.0 hrs for the job. How many miles on your SHO? ZSHOme said:
I got my PTU oil changed. It looks like it was thickening. The shop said they filled it then ran it and then drained it again. Second drain was better looking. He gave me the oil from both drains. He also drained and filled the tranny 3 times running the car in-between. I'm now at 29k. I will agree that 25-30k miles is on the money for a change. I used Amsoil severe gear. A little background on me is this is my second SHO. The other was a 2010. It smoked a PTU around 80k and the torque converter began to fail at 105k. I am going to take better care of the drive train on this one.
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I have the fluid at the house in zip lock bags. The fluid from the first drain was sticking to the bag. The second(flush) was dirty but did not stick to the bag as bad. The third was good. I can post the first and third samples when I get a chance. He used Fomoco trans fluid. He showed me a sample of the trans fluid after first drain. very dark but no burnt smell.
Also the mechanic that did my service said he filled the PTU from the vent. He did not remove the DP. He said he put 18 oz in it. I believe this to be the correct amount. Does this sound right? If it is over filled it would just puke out the vent right? If it puked out the vent I am sure I would smell it correct? Reassurance needed here.
Well, since your SHO has the perf pkg, not sure why he needed to use the vent to fill at all. For flushing, I could see a use. Per Windstang's recent posts, seems like it should have a oneway valve? So TBH I don't know. Does your SHO already have the vent extension up near the brake fluid reservoir? Not sure if he knew that's not a fill hole.
