Volvo S80 A performance sedan that offers top notch luxury, outstanding handling and so much more.

Yet another AW55-50 issue

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Old Apr 9, 2017 | 01:02 PM
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Jerry90's Avatar
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Default Yet another AW55-50 issue

Hey guys,

I have problem with my 2001 Volvo S80 2.4 125kW with AT on it. It has about 160k miles on ODO. The things I already have done:

* Updated my AW55 (turned off Neutral Control feature)
* Replaced AT oil with Ravenol T-IV
* Replaced SLU SLS and SLT solenoids to Rostra ones (After that it shifts much better)
* Replaced B4 body

The things which occurs in my car is:
* It shifts almost perfectly when acceleration pedal is to the floor or pressed hard. No bangs, harsh shifts but after every gear change, especially on high RPM the car shakes a bit (something like slipping cluth in manual transmissions).
* When you drive normaly it gives you "the feel" on gear changes. It's not flawless but acceptable. One can feel the biggest stress when it shifts from 2 to 3 and from 3 to 4.
* Reductions are perfect. Except when you're stopping and gear goes down from 3 to 2 and you can hear some kind of metal knock
* It goes backward on D when driving f.e. on ramp greater then 10 '
* When I drive it in city and want to accelerate, f.e. on 3rd gear the RPM rises immediatly from 2k to 2,8k without changing gear. Is it normal that the clutch slips up to 800 RPM per gear?

And well... it looks like have lack of power. Is it possible that my hydraulic clutch is dying?

Thank in advance for your help and sorries for my broken english, hope you guys understand!
 
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