Is something worn in my AW55?

Post by **Krons** » 29 Jul 2023, 11:54

3.3L? Sounds like a drain and fill and not a flush.

dikidera · Post by **dikidera** » 29 Jul 2023, 13:28

Yes I was simply clearing up the situation.

dikidera · Post by **dikidera** » 05 Aug 2023, 15:41

I think I have more information. Symptoms: RPM going up and down while accel pedal is the same. This happens at around 37-45mph and gearbox in 5th gear. At first I thought the gearbox was going from 5th to 4th gear, but I am not feeling any gear changes. I think I might be getting tcc slip, the converter is locking and unlocking every three seconds or so causing RPM changes by 200-300. Beyond that speed, it's "fine".
The only way for me to verify this further is to write a can logger for the gearbox.

Btw, I don't claim to know this is what it is for sure, in fact I know next to nothing about torque converters, but a little tip is that cruise control works fine for the same speed(no RPM oscillations every three seconds) so while not certain, maybe I can rule out the ETM.

Another interesting read is this post https://volvoforums.org.uk/showpost.php ... ostcount=7

Is something worn in my AW55?

Re: Is something worn in my AW55?