G/box: 70 Auto: - Transmission Problems - solutions.

yevgeniy · May 2nd, 2013, 08:05

So my old post is a bit long and hard to figure out. And i finally got time to clarify it.

I have purchased a 2001 Volvo C70 Convertible, with a bad transmission. It worked fine when it was cold, after 10 minutes of driving it started to flare up, another 5 minutes of driving made it slam into gears. ( i mean a BIG BOOM sort of slam ). 10 minutes after that it would not go out of 3rd gear and would stall every time i have stopped at the light, unless i moved the lever to Neutral.

In order to fix it i have tried everything i could think of, B4 servo cover did not help, fluid changes did nothing, i have replaced top engine mount and lower transmission mounts as they were worn, that seemed to make the slams a little less violent. Software updates have been all done to the car. nothing made any difference.

This issue was solved by replacing the valve body and running a transmission adaptation.

Replacing the valve body was very straight forward and took me (average monkey with a hammer) about 4 hours.

once valve body was replaced shifts became smooth as silk, but flares remained until i have done the adaptation procedure. after that it was flawless.

Good Luck, Hope this Helps.

yevgeniy · May 2nd, 2013, 08:20

By the way i should add, if you are going to do this, you may want to find a gasket for the oil pan, as at least in the US volvo dealers do not sell them, they use that silicone sealant thing, i did see them on ebay for around 20$. it is worth the money. trust me, i had to take it off a few times to reseal as it kept leaking due to me having to touch it with my fingers to pull it down to its place.

May 2nd, 2013, 08:05	#1
yevgeniy Junior Member Last Online: Mar 11th, 2015 22:06 Join Date: Mar 2012 Location: Portland,Oregon	Transmission Problems - solutions. So my old post is a bit long and hard to figure out. And i finally got time to clarify it. I have purchased a 2001 Volvo C70 Convertible, with a bad transmission. It worked fine when it was cold, after 10 minutes of driving it started to flare up, another 5 minutes of driving made it slam into gears. ( i mean a BIG BOOM sort of slam ). 10 minutes after that it would not go out of 3rd gear and would stall every time i have stopped at the light, unless i moved the lever to Neutral. In order to fix it i have tried everything i could think of, B4 servo cover did not help, fluid changes did nothing, i have replaced top engine mount and lower transmission mounts as they were worn, that seemed to make the slams a little less violent. Software updates have been all done to the car. nothing made any difference. This issue was solved by replacing the valve body and running a transmission adaptation. Replacing the valve body was very straight forward and took me (average monkey with a hammer) about 4 hours. once valve body was replaced shifts became smooth as silk, but flares remained until i have done the adaptation procedure. after that it was flawless. Good Luck, Hope this Helps.

May 2nd, 2013, 08:20	#2
yevgeniy Junior Member Last Online: Mar 11th, 2015 22:06 Join Date: Mar 2012 Location: Portland,Oregon	By the way i should add, if you are going to do this, you may want to find a gasket for the oil pan, as at least in the US volvo dealers do not sell them, they use that silicone sealant thing, i did see them on ebay for around 20$. it is worth the money. trust me, i had to take it off a few times to reseal as it kept leaking due to me having to touch it with my fingers to pull it down to its place.

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