Control body overhaul any one don it?

[stuj]

have a 2001 xc70 and just got a quote for $3500 for a new valve body, too much for a car of this age.

I want to open it up and have a go at repair, worked on many manual tansmissions but never auto.

A search of the net indicated there is a correction kit avalibe to overhaul the Aisin AW 55-50 SN.

Ths guy has a great video on how to do it...

http://www.youtube.com/watch?v=rB5Mw...eature=related

http://www.youtube.com/watch?NR=1&fe...&v=H6F7_vPy2pg


Has anyone done this overhaul..

[Astro14]

DON'T try this yourself.

The guy in the video has the tools/diagnostics to determine what's wrong - you don't.

He has the jigs to re-bore the SLT solenoid - you don't.

I could publish a video on brain tumor removal - that doesn't mean that you have a brain tumor, or that you could become a neurosurgeon by watching it...

In fact, you don't really know what's wrong...just because a failure is common...that does not mean that your car has that failure.

If you want the valve body to be rebuilt, use a professional. Read the notes in the resource section. You can do it yourself for about $700, all included.

But you had better be certain that it's the valve body that's failing...and that the rest of the transmission is worth saving...or you will waste the time and $$ it takes to replace it...

[Volky_one]

have a 2001 xc70 and just got a quote for $3500 for a new valve body, too much for a car of this age.

I want to open it up and have a go at repair, worked on many manual tansmissions but never auto.

A search of the net indicated there is a correction kit avalibe to overhaul the Aisin AW 55-50 SN.

Ths guy has a great video on how to do it...

http://www.youtube.com/watch?v=rB5Mw...eature=related

http://www.youtube.com/watch?NR=1&fe...&v=H6F7_vPy2pg


Has anyone done this overhaul..

$3500 is too much unless that include to install it, dealership quoted me about $1500 plus tax if you'll do the job yourself. I had mine rebuilt for $720 shipping included and did put it back myself, no luck, the problem still remains. If you're thinking to overhaul, you can buy a new one and instal it yourself and save$$$

[howardc64]

I had mine rebuilt for $720 shipping included and did put it back myself, no luck, the problem still remains.

What kind of shifting problems did you have and continues to have?

[stuj]

Transmission is fine when cold I have changed the oil and the transmission was somewhat improved for 3 months. main problem is harsh first gear engagement.

found a correction kit that solves the following...


FEATURES: Corrects/Prevents/Reduces: Delay/Bang drive engagement, 4-3 and 3-2 coast clunk; 2-3 & 3-4 cutloose, kick-down runaway, converter slip.


i have all of these symptoms

http://transgoonline.com/products.ph...dcountview=Yes

I have ordered Volvo dice to review the fault codes and put the unit into adaptive mode.


The transmission specialist that checked the transmission diagnosed a new valve body based on a test drive, this is the least cost option for him as he would not be happy to give a guarantee with a correction kit. He said he would have to take the car to a volvo service centre to get the transmission reprogrammed, sure I have the upgrade but maybe he meant adaptive mode.

I want to have a go at fixing this first and then go to a new valve body if this doesn't fix the problem.

There are a lot of good resources on the net, contrary to other posts there are not any specialist tools really needed to diagnose transmission. One very good resource suggests putting in some plugs on the cover plet so the transmission can be adjusted without taking off the cover.

http://www.sonnax.com/system/pdfs/87...ATRA08-RCW.pdf

StuJ

[stuj]

DON'T try this yourself.

The guy in the video has the tools/diagnostics to determine what's wrong - you don't.

He has the jigs to re-bore the SLT solenoid - you don't.

I could publish a video on brain tumor removal - that doesn't mean that you have a brain tumor, or that you could become a neurosurgeon by watching it...

In fact, you don't really know what's wrong...just because a failure is common...that does not mean that your car has that failure.

If you want the valve body to be rebuilt, use a professional. Read the notes in the resource section. You can do it yourself for about $700, all included.

But you had better be certain that it's the valve body that's failing...and that the rest of the transmission is worth saving...or you will waste the time and $$ it takes to replace it...

have a close look at the video he grinds the ends off and then presses a cup on the back.

[Aviator]

worked on many manual tansmissions but never auto.

Enough said. Walk away and have a professional do the work. When's the last time you saw a dentist do heart surgery?

Dave.

[Astro14]

Stuj - Your question is: tell me how to do the job.

You're not accepting my answer: don't do it.

I watched the video. I've read your links. So what? They may, or may not, be applicable to your particular car. I've spent some time working on this, and I've spent some time talking with Carlos, the owner of Valve Body Builders, on what's involved in correctly diagnosing and rebuilding a valve body.

Believe me, you don't have the means to correctly diagnose or rebuild one - that video, and those links, are meant for an industry professional, not a DIY...like a heart surgeon publishing a technique...that doesn't mean that EMTs can watch the video and do heart surgery.

You have yet to convince me that your valve body is at fault. If your tech thinks so, then let him do the work with a rebuilt body. Don't try rebuilding it yourself.

If you want to know more, please go to the resource section of this forum and read through how to replace the valve body. I wrote that guide.

[stuj]

Stuj - Your question is: tell me how to do the job.

You're not accepting my answer: don't do it.

I watched the video. I've read your links. So what? They may, or may not, be applicable to your particular car. I've spent some time working on this, and I've spent some time talking with Carlos, the owner of Valve Body Builders, on what's involved in correctly diagnosing and rebuilding a valve body.

Believe me, you don't have the means to correctly diagnose or rebuild one - that video, and those links, are meant for an industry professional, not a DIY...like a heart surgeon publishing a technique...that doesn't mean that EMTs can watch the video and do heart surgery.

You have yet to convince me that your valve body is at fault. If your tech thinks so, then let him do the work with a rebuilt body. Don't try rebuilding it yourself.

If you want to know more, please go to the resource section of this forum and read through how to replace the valve body. I wrote that guide.

I hear what yo say but don't think my transmission specialist is prepared to spend the time on diagnosis the problem. their first option is to change the valve body as it is the least risk option for them. If a cheap fix does not work they will have to pay for the labour to make good on a guarantee. So, they are transferring their risk insurance to me at my cost by replacing the valve body.

What special tools do professionals have to do the job that i don't ... the answer is none! All you need is a good pressure gauge (mine has a data logger) and volvo dice (most transmission specialists don't have this and have to outsource this to Volvo who are reluctant to help anyone in my state).

It's easier to replace the whole valve body, i agree. but more of a challenge to repair it and what is the outcome if it doesn't work...greasy hands and the cost of a new valve body.

I'm prepared to take the risk and have a go.... after all this is the spirit o this type of forum.

and BTW i don't have to accept your answer,but thanks for the advice anyway.

[stuj]

Enough said. Walk away and have a professional do the work. When's the last time you saw a dentist do heart surgery?

Dave.

can you stop with the references to he human body...my car is inanimate and made of plastic metal and glass.