I am not against transmission flush's either so long as the user serviceable filter is changed at the same time. I am against any flush that leaves the OEM used filter in place. Almost all the transmission ffailures that have occured after flushing have been on vechiles that did not get a filter change at the time of flushing. This is from the filter manufactuers as well! THe research is some place online!
A Different Type of Transmission Flush Machine
- Thread starter The Critic
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Filter wrench will not always reach or work depending on the car with out removing some plastic pieces under the car that get in the way.You sould not need one anyways if you break it lose cold and only tighten it a 1/4 turn past contact. You tighten it down like Magilly Gurilla then you kind of asked for a hassel!
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John- A T-tech, when used according to the the companies directions will exchange almost all of the old fluid (minus a few ounces in the return line if not drained). Keep in mind this is with a pan drop.
The same goes for a DIY fluid exchange.For example, 16 quarts will get you close to 99% of all of the old fluid out of a 02 Denali trans (4L65E) which holds a total of 11.3 quarts.
Some cars may be different, and people may be using the feed line off of a cooler which would leave more fluid in the system. If you use the right amount of fluid after finding the vehicles total capacity, you will end up flushing out nearly all of the old fluid.
The same goes for a DIY fluid exchange.For example, 16 quarts will get you close to 99% of all of the old fluid out of a 02 Denali trans (4L65E) which holds a total of 11.3 quarts.
Some cars may be different, and people may be using the feed line off of a cooler which would leave more fluid in the system. If you use the right amount of fluid after finding the vehicles total capacity, you will end up flushing out nearly all of the old fluid.
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What you don't understand is that T-tech and all flush machines "advertise" or "market" a percentage that they don't guarantee and usually is false. This is one reason why someone competent will start with a drain/refill or pan drop prior to the T-tech. And, even then, you still need a gross amount of fluid to reach in the 90's %.
BTW, even with a pan drop or drain/refill, you still have OLD fluid mixing in the pan. Sorry, but the coolant loop is usually unused or waste flow and pressure. Plenty ATF loops around and skips the TC and/or coolant loop in many transmissions. Most people won't understand this UNTIL they perform and inlet flush and see all the OLD ATF that comes from all the other 'work', VB, and lubrication circuits. The OLD ATF would be mixing with your new fluid from the pan drop or d/r. So, they will ALWAYS have those 2 mixing(wasting) points of old/new fluid, the pan and the torque converter.
Please feel free to fill a small glass(ATF sump) with 4 ounces of milk. Take a 2nd glass(TC capacity) and also fill it with 4oz of milk. Keep one glass so that it overflows the into the 2nd glass, and have the 2nd glass overflow into a large pot(old ATF). Now, continually add water to that 1st glass 1 ounce at a time, allowing 1 ounce of the water/milk mixture to poor into the 2nd milk glass, and then allow the 2nd glass to drain out in the same 1 ounce increment. How many ounces of water do you need to get clear water in the 2nd glass? Notice how if you start with a pan drop or drain/refill, that 1st glass is clear water already.
So, please don't over exaggerate the 'flush machines' capability. I've seen back to back UOAs before/after flush and it wasn't impressive.
BTW, even with a pan drop or drain/refill, you still have OLD fluid mixing in the pan. Sorry, but the coolant loop is usually unused or waste flow and pressure. Plenty ATF loops around and skips the TC and/or coolant loop in many transmissions. Most people won't understand this UNTIL they perform and inlet flush and see all the OLD ATF that comes from all the other 'work', VB, and lubrication circuits. The OLD ATF would be mixing with your new fluid from the pan drop or d/r. So, they will ALWAYS have those 2 mixing(wasting) points of old/new fluid, the pan and the torque converter.
Please feel free to fill a small glass(ATF sump) with 4 ounces of milk. Take a 2nd glass(TC capacity) and also fill it with 4oz of milk. Keep one glass so that it overflows the into the 2nd glass, and have the 2nd glass overflow into a large pot(old ATF). Now, continually add water to that 1st glass 1 ounce at a time, allowing 1 ounce of the water/milk mixture to poor into the 2nd milk glass, and then allow the 2nd glass to drain out in the same 1 ounce increment. How many ounces of water do you need to get clear water in the 2nd glass? Notice how if you start with a pan drop or drain/refill, that 1st glass is clear water already.
So, please don't over exaggerate the 'flush machines' capability. I've seen back to back UOAs before/after flush and it wasn't impressive.
Im not "over exaggerating" anything thanks. I have done plenty of flushes on many vehicles. I have see the small amount of mixing that goes on. Im not sure what cars you are talking about, but toyotas and most all GM's the fluid come right from the torque converter into the cooler circuit!? Maybe in a select few this is not the case, but every single one I have done that is the way the fluid flows.
Here we go with a UOA...... As I pointed out above, calculate your total capacity for the given vehicle, figure out how many total quarts you will need. 16-18 quarts will get most vehicles into the 90's very easily, with of course as I mentioned a pan drop. So thank you but I will continue to support through my experiences, not advertising, that cooler line flushes are very effective when done properly. Thanks for the correction though
. Your cup analogy might make sense some place, but not in an automatic transmission with the method of flushing im discussing.
Here we go with a UOA...... As I pointed out above, calculate your total capacity for the given vehicle, figure out how many total quarts you will need. 16-18 quarts will get most vehicles into the 90's very easily, with of course as I mentioned a pan drop. So thank you but I will continue to support through my experiences, not advertising, that cooler line flushes are very effective when done properly. Thanks for the correction though
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For my wife's Exploder I had the Ford dealer do a fluid exchange @ 25,000 miles. They didn't do a pan drop, new filter and fill first. I had my local mechanic do the next fluid exchange at 55,000 miles. He first dropped the pan, used a Motorcraft filter then refilled the pan THEN did the fluid exchange. Considering Ford has I believe a 100,000 mile ATF service, which is a pan drop and fill with filter, I don't feel too bad about no filter change the first time the fluid was exchanged at 25,000 miles. My local mechanic uses Motorcraft Mercon V. Trannies are expensive, good maintenance is "cheap" by comparison.
Whimsey
Whimsey
I think this machine is pretty interesting and is doing the best job possible of fluid (flush)replacement. There are some reports on the GM sites where the Allison transmission should not be flushed via the traditional flush methods shops have been using due to the super high pressure Allison pump will pump fluid out quicker than fluid is being replaced.
This machine would eliminate that little problem.
This machine would eliminate that little problem.
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