2001 V70 T5 - Slipping AW55 Solutions?

[dikidera]

Alright JLenny,

I successfully installed the sensors that I pulled from the junkyard. (I had pulled the entire lead including both the input and output sensor and plug-in).

Once installed, I tested it a little bit by driving city streets, and then stopped to clear the codes using VIDA. After clearing the codes, I turned the ignition off, then on to 1500 RPM, then off again , and then on again (like VIDA recommends). After that, the car, at idle, was building RPM into the 1000s with no throttle application. However, this uncontrolled RPM build was short lived, and settled back down to normal idle.

I did not reset the transmission adaptation, as I did this already when I changed the ATF fluid earlier this summer, and did not see a reason to do so following the speed sensor change. If you think there is a reason, or if there is another thing I should reset, please let me know.

After that I took it on the back roads! I hope your car is running as well as mine, because man! It has substantially increased acceleration consistency. No slipping during acceleration, or clunking when accelerating out of coasting. Smooth, smooth, smooth! No more worrying if I can get up to speed hopping on freeway. I felt like I was walking on eggshells every time I drove it before.



Interesting side note: I cleaned off all sensors after pulling them from junkyard. I inserted this one in the speed sensor hole, and took it out right after. It picked up all of this debris. I assume there are fine metal shavings loose in the transmission, and the speed sensor has a magnet inside. Does your brother think this is normal?

Transmission Speed Sensor.jpg


I'll report back here if anything develops or goes wrong. Thanks again for you and your brother's guidance!

~ Noah

Normal yet not so much either. These metal shavings are likely from torque converter clutch + normal wear and tear of the transmission, but it is curious that you picked them up so fast. The oil must be filled with them including the transmission drain plug(which has a magnet). Btw there are a bunch of other magnets inside the transmission too.

Either way nothing more you can do about it. Happy it worked out for you.

[jlenny]

My car has been running well! I still commute about 70 mi/day in my 2001. But luckily I won't have this commute for much longer.

I'm sure the slipping from the output sensor did put some wear on the transmission.

Regarding the metal shavings. It's not a direct comparison, but manual Subarus have a magnetic drain plug. When I have replaced the gear oil in Subaru transmissions there has always been about that much metal shavings on the drain plug.

[vtl]

My replacement vehicle is a 2007 XC70. I miss how well the T5 goes, stops and turns.

Hilton tune, XC90 brakes, sway bars from XC90 (front), V70R (rear).