Hey
I own a Passo 2010 (2nd Generation), I noticed that the left axle seal was leaking and went to have it replaced. The replacement was done correctly and I asked a reliable suspension guy of mine (have had him replace axles earlier on cars with CVT transmissions earlier)mto have a look at the inner and see if it may need replacement. He said it did and I replaced it with one that looked fine (used part) and had it put back in and topped up the CVT fluid and started the car. This is when we ran into issues. On start, after putting the car into reverse and driving away I performed a uturn it suddenly started shaking like crazy, and this continued every time I tried to pick it up from a dead stop regardless of how hard or light I went on the accelerator. No check engine lights or codes, I scanned it right there.
I thought that it might have been an issue with the inner as it seemed like the car was worse in terms of vibrations and proceeded to drive it back to the suspension guy. We then refit, another inner that seemed fine (did the measurements this time) and we still had the same issues. It was late and I decided to have a look at this tommorow, and drove it back home. I rescanned the car and there was a code that denoted that there was an issue in transmission communication (I have lost the code), and a few others, all which were weirdly issus in communication, I think EFI Communication, ABS Communication (no check engine regardless of these codes weirdly). I thought this might have happened because I also decided to clean a few of the sensors and cleared the codes.
I then had dinner and decided to do a test drive again to see what the issue may have been but weirdly the issue had completely disappeared (the crazy shaking on pickup was gone), but when I picked up some speed the car felt a little heavy and there was this weird vibration I could feel which I suspect might be the inner which I will have replaced with the original inner tomorrow. But upon long drives, we had issues such as the car very rarely but did have the crazy shakes come back upon picking it up at a stop (never at speed), other than that I have noticed a weird jerk that comes 1/20 times when the car is shifted from P->D, or N->D or P->R, it also seems like it takes a second for the car to actually shift into the gear as well when this happens but it is rare. Other than we still have the weird vibration or heaviness when the car is being accelerated and is in speed.
There are zero issues when it comes to the performance of the CVT in terms of driving or climbing uphill etc. I do not notice any irregularities within the transmission at all and there have been zero codes that have come back, currently the ECU does not have a code in history or current.
I have checked the cars cvt fluid level and it seems like the level is complete, when cold the oil is 1/4 of the way between cold and hot, and when hot it is near hot on the dipstick. I have also checked the level when placing the car into reverse and when car is at operating temperature and at that point the cars dipstick upon cleaning and reinsertion shows it to be below cold, but I am not sure if this method applies to a toyota passo, I do know that Mitsubishis did have this on their manuals for checking cvt fluid levels.
I am completely stumped when it comes to what the hell is going on over here, and none of my mechanics have a clue when it comes to this either, all of them are taking random guesses as per the usual. I do realize the issues I mentioned are localized to a time frame of shifting the gears and then picking up, and often they happen when driving the car for a while.
Any help would be appreciated.
