Vehicle: 2002 Toyota RAV4 171k Miles, Second Owner
Problem: When travelling at highway speeds around 60 it will be smooth. When pushing down the accelerator rather aggressively it will shift into 3rd Gear and some times lose power and I actually slow down while the RPMs increase.
I added a little bit of Lucas Slip Stop to the Transmission and it seemed to help but I’m still encountering the problem.
Could this be my transmission’s 3rd gear starting to fail?
I assume this is an automatic. If so these vehicles are known for PCM ( engine and transmission control ) for solder joints to fail. There are places ( easy to find ebay google ) that you remove it and send it in. Youtube it as well. There are videos on there on how to remove it. ( easy ) you send it in and it is usually a quick turn around. If you drive the vehicle this way you run the risk of destroying the transmission.
While I agree that the transmission sounds like it’s about to give up 3d gear I wonder why no mention was made of power loss in 3d when accellerating? Does 3d work OK when up shifting through the gears @Monico?