trans fluid change questions
#11
I will be doing this this weekend,
https://sites.google.com/site/fordf1...nge-procedures
Seems like it will have the upsides of a full flush without the apparent downsides.
https://sites.google.com/site/fordf1...nge-procedures
Seems like it will have the upsides of a full flush without the apparent downsides.
#12
Senior Member
I'm sorry but this is false.. Not changing the fluid is a terrible idea. The fluid does break down overtime. It gets diluted with contaminants in suspension, decreases lubricity, does not cool as efficiently and causes hang ups in solenoid function and blockages throughout the system, and valve body.. I see no benefits to leaving old worn fluid in any transmission or transfer case. The myth that a tranny is being "held together" by contaminated fluid is absolutely just a myth. The reality is that most people tend to wait for the issues to start popping up, and then they decide to change the fluid. In many cases failure can be prevented from fresh fluid changes alone.....
Don't wait for the warning signs, always change your fluid at least every 30,000 miles... If you follow the info in the thread I linked, you will see its likely the safest way to cleans a Trans, and restore cooling and flow efficiency.. Power flushing is NOT RECOMMENDED AT ALL..
#14
Senior Member
iTrader: (1)
But yes if you expect a miracle cure from an already malfunctioning Trans after a fluid change, then your dreaming.
BTW: my fluid was also brown when I first changed it in the ballpark figure of 25k miles ago.. I'm now at 165k with no issues and a great performing tranny...
#15
Mark
iTrader: (1)
#16
Senior Member
Thread Starter
thanks for all the input everyone i appreciate it i think my plan is to slowly dilute the old fluid with new fluid by changing the fluid, not flush, about every 5-10k miles, so again thanks everyone
#17
Senior Member
According to the original poster and the next guy they both agreed that they haven't had their transmissions serviced ever. So I do make a valid statement about fluid changing if it had been that long. It's unmasking potential problems not always creating new ones. And yes if the fluid is dark brown and burnt then the transmission fluid is cooked, the transmission internals could be cooked and potentially the transmission cooler should be looked at as well. Which is why I stated you could be opening a can of worms by changing fluid if its beyond that point. I don't neglect fluid maintenance one bit but if it hasn't been serviced in that long of time or mileage, why start now.
#18
Senior Member
iTrader: (1)
According to the original poster and the next guy they both agreed that they haven't had their transmissions serviced ever. So I do make a valid statement about fluid changing if it had been that long. It's unmasking potential problems not always creating new ones. And yes if the fluid is dark brown and burnt then the transmission fluid is cooked, the transmission internals could be cooked and potentially the transmission cooler should be looked at as well. Which is why I stated you could be opening a can of worms by changing fluid if its beyond that point. I don't neglect fluid maintenance one bit but if it hasn't been serviced in that long of time or mileage, why start now.
Last edited by Especial86; 05-05-2014 at 10:59 PM.
#20
Senior Member
Again, this wasn't a topic question of performing routine maintenance. The original poster asked if it would be a good idea to change his fluid out when it had over 100K miles on the transmission, and the second guy hasn't changed fluid in over 200K miles, something of which should have been done a long time ago, many times over by this point.