IPD sale XeMODeX - Experts in Volvo Electronics
MVS-Amazon link helps MVS!

Get email notification of topic replies. Log in or register (free). Amazon Link Buy anything with this and it helps MVS!

TCM swap

Help, Advice, Owners' Discussion and DIY Tutorials on Volvo's stylish, distinctive "P2" platform cars.

2001 - 2007 V70
2004 - 2007 V70 R
2001 - 2007 XC-70
2001 - 2009 S60
2003 - 2007 S60 R

User avatar
vtl
Posts: 2076
Joined: Thu Aug 16, 2012 1:35 pm
Year and Model: 2005 XC70
Location: Boston
Has thanked: 4 times
Been thanked: 96 times

Re: TCM swap

Post by vtl »

After 20-30 minutes ATF temperature raises, viscosity drops, leaks get worse.

Mobil is not the right viscosity, it has cSt@100 7.2, while OE ATF is 7.5 and has a better friction additives package. Shifts with Mobil are more harsh. You may try to cure it with HFM since you've got two boxes...

Installing additional oil cooler is a very basic job. Get Hayden Rapid-Cool of your choice and aluminium angles and bolts/nuts in Home Depot. Here's my frame for the cooler that mounts onto A/C radiator (it has mount holes):

Image

And that's how it looks on the car:

Image

Wise to install a 3/8" Magnefine inline transmission filter at the same time.
05 XC70, 16 XC60, 19 Tundra
dejanaleksov
Posts: 14
Joined: Sat Jul 21, 2018 8:28 am
Year and Model: 2001V70xc
Location: Skopje

Re: TCM swap

Post by dejanaleksov »

Nice thread, but did it solve anything? Vtl u r helping people, guess u like theese volvos to be driven more. Appreciate that. Cheers. BTW I have similar problem. Let's hope I will solve the problem and drive this volvo for a long time. Excellent car, not the gearbox
User avatar
vtl
Posts: 2076
Joined: Thu Aug 16, 2012 1:35 pm
Year and Model: 2005 XC70
Location: Boston
Has thanked: 4 times
Been thanked: 96 times

Re: TCM swap

Post by vtl »

Transmission shifts much smoother when ATF is below like 85 degrees Celsius.

Gearbox is fine. "Lifetime ATF" is not. Flush it every 30k miles and it will run north of 200k miles with no issues.
05 XC70, 16 XC60, 19 Tundra
Xc70V
Posts: 2
Joined: Wed Jan 29, 2020 9:41 pm
Year and Model: 2006-xc70
Location: USA

Re: TCM swap

Post by Xc70V »

abcdetech

Hi,

Just wondering if the flush helped solve your shifting problem from R to Drive. I’m experiencing the same problem and would appreciate hearing your experience.

Thx.
Post Reply
  • Similar Topics
    Replies
    Views
    Last post