You really have to have a good trusted mechanic and they can be hard to find. The dealership will always be more expensive. My mechanic installed the used transmission, new converter, installed a 2" lift kit, mounted and balanced new wheels and tires I had purchased from Tire Rack for a total of $2,700. I elected to install another new converter to be safe ( $900 for the converter from Toyota ). I bought a used transmission and my mechanic changed it out for me. A couple of years after the converter replacement my transmission failed which I believe was a result of metal particles from the original failed converter. Because the subframe is dropped they also have to do an alignment when finished. I was told by my local trusted mechanic it is a big job as the subframe has to be dropped. ( Dealership ) replaced the converter under an extended warranty. I will update if there's any changes after the second "forbidden" fluid change.Same issue with my 2014 Rav a few years ago but I did get the TSB letter in the mail and they So even if the filter doesn't look dirty, I recommend changing it. I cut it opened to see if it was dirty or clogged, it didn't seem too dirty or clogged so I didn't take any photos because there's nothing interesting to see other than the mesh covers almost the entire filter and is made of much tougher material than I expected when I tried to tear it open by hand, it wouldn't budge.Īfter the filter change and added about 4 quarts of new Maxlife ATF (the existing fluid smelled and looked okay), the transmission's shift has become smoother and the hesitation is almost gone (Toyota transmission of the generation has some hesitation anyway). The original filter is made of a very tough fiber mesh filter matching the same filter I got from Toyota, not a metal mesh like I read in other places. It didn't look like the transmission was ever serviced, and I am very impressed with the Toyota transmission if that's really the case because it probably means there's only a small amount of wear for a transmission with 200K that's never serviced. The filter was not very dirty, there's only a small amount of very fine metals on the two magnets and small amount of sludge in the pan for a vehicle with over 200K miles. I decided to drop the pan and change the transmission filter because I didn't do it last time, and there's a slight hesitation on hard acceleration. I am at 212K miles - 2K and 6 months since the transmission fluid change. Older (non computer controlled) transmissions don't have this problem because they rely on hydraulic fluid pressures to make things happen without a computer trying to counter act what's happening. This causes slippage because the friction is gone, the transmission slips as the computer is trying to hold its current operational parameters yet it can't because the fluid is new and the new fluid doesn't have the ability to resist slippage. The new fluid also "washes out" some debris embedded in the band material. When a fluid exchange happens, the "frictional debris" is removed with the fluid when the fluid is exchanged. And here's why.Ī computer controlled transmission "learns" your driving habits and maintains operational parameters best suited to your driving style. That being said.never do a complete fluid exchange (flush) on any vehicle with a computer controlled transmission. I've worked in several transmission shops. I'm certified ASE Master Tech transmission builder.
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