1999 xc70 slipping in reverse

tranmkp · Post by **tranmkp** » 27 Dec 2013, 15:40

Ok, this is a 1999XC70 - 130k miles - car slipping only in reverse, with or without driveshaft. Ordered a rebuild from volvo (from vin on car) 4speed not 5 speed.

Got new trans, installed, exact same issue, slips in reverse - no issues.

Took to dealer HO CODES from tcu - Nothing - nothing... cleared memory - double checked - no codes.

WHat are the chances of the exact same issue with a rebuild????

Post by **rspi** » 27 Dec 2013, 19:27

Did you also replace the torque converter?

tranmkp · Post by **tranmkp** » 28 Dec 2013, 00:23

Damn- isn't a torque converter part of the rebuild???

Post by **rspi** » 28 Dec 2013, 09:20

No, the torque converter goes between the motor and tranny.

Post by **rspi** » 30 Dec 2013, 23:13

Someone may want to confirm this but I spoke to someone changing a transmission today and he said that you likely have another bad tranny. He said that torque converters work or don't. They won't slip in reverse and work fine in forward gears.

Post by **kcodyjr** » 31 Dec 2013, 08:02

+1. The torque converter spins in the same direction all the time, just like a flywheel would.

Methinks Volvo f***ed up the rebuild.

Post by **xHeart** » 31 Dec 2013, 10:10

sidebar: it takes an upright engine and transmission.
I say, stabilize subframe - replace/restore ALL mounts and pads to eliminate sag.

tranmkp · Post by **tranmkp** » 01 Jan 2014, 18:36

ok, volvo will cover it - all subframe mounts done - lets see what happens

bavarianstig · Post by **bavarianstig** » 06 Jun 2014, 19:04

tranmkp wrote:ok, volvo will cover it - all subframe mounts done - lets see what happens

Update? I'm curious because I also have reverse slipping in my 99 S70 AWD and wondered if transmission/motor mounts could be the cause of the issue.

tranmkp · Post by **tranmkp** » 24 Jul 2014, 13:15

So far so good - about 3k on it now -