Transmission Slipping and Hard Shifts

herbls · Post by **herbls** » 17 May 2018, 11:35

Hi, All.

I have a 2005 S40 T5 AWD with the 5-speed automatic with about 101K. This winter I noticed a couple new issues.

First, as it shifts from 2nd to 3rd it sometimes slips (takes a while to engage and you can hear it in the engine revs).
At other times it shifts from 1st into 2nd hard and from 2nd into 3rd hard.
Additionally, shifting into Drive after idling in Park for an extended period results in a really hard clunk.

Any ideas where I should look to resolve these issues? I think I saw something somewhere regarding a software issue possibly being at fault. Not sure where to start first so thanks in advance for any help you folks can provide.

Thx!

Post by **oragex** » 17 May 2018, 14:24

Don't think it's related to software. Did it all started this winter or is the car a recent purchase? Does it have 101K miles for sure if it was just purchased?

herbls · Post by **herbls** » 17 May 2018, 23:27

Hi

I've had it for a little over 5 years. It had 86K when I bought it.

I always felt that the 2 - 3 upshift seemed a little delayed but the behaviors I described in my post just started in the last 4 months or so.

Thx!

herbls · Post by **herbls** » 18 May 2018, 05:11

Just wanted to add that during those times when hard upshifts occur I also experience hard, jerking downshifts.

Thx

Post by **MadeInJapan** » 20 May 2018, 10:29

It would probably be worth trying a transmission fluid drain and fill...do that several times over the next few weeks. I'd stay away from a flush though. Could be more than that but hopefully this will improve things.

herbls · Post by **herbls** » 20 May 2018, 15:41

Thank you! I will give that a try.