silentbob
Veteran Member
nope....just changed the valve.....
and now we've changed (rebuilt) the whole t.c. too....the tcc solenoid is next in line for replacement i believe...
adjust auto transmission line pressure
- Thread starter KERMA
- Start date
and now we've changed (rebuilt) the whole t.c. too....the tcc solenoid is next in line for replacement i believe...
TDICa
Veteran Member
Bigbear: I'm 90% sure it's a clockwise lock-step rotation. You CAN NOT undo this adjustment, without ripping apart the valve-body - so don't force this adjustment. As you make this adjustment, you will feel and hear it click thru it's steps. It has been reported that 25-30 clicks is max. pressure. I went in 10 clicks and will probably go in another 5 clicks on my next tranny service.
No other changes required - just make sure you put the correct amount of ATF back into the tranny.
No other changes required - just make sure you put the correct amount of ATF back into the tranny.
Cheers, I have just adjusted the line pressure together with an oil/filter change. Fisrt of all I' d like to say thank to everybody got involved and kept informed us about this issue, especially Kerma.
To make the mod was a piece of cake, the description was a good one.
I cut a T20 torx wrench and welded on a plate to make the screwing easy. So I screwed up a T20 but got a pretty special tool...
I turned the little thing in about two and a quarter turn and it was all, then little resistance had been felt, so this is the end. Put together the tranny, filled up with oil (almost 3 litres, nothing more!)
This is a Golf III variant (Estate for the blokes overseas..
) of 1999 with a 01M tranny and it has covered 100k kilometres (62k miles) the fluid was somehow dark but was not burnt by any means. Smelt normal.
After the mod I felt that the slipping at the 1st and 2nd gear got less and there is more pull at this gears but the difference is not big. The gear change got a little more noticeable but I would not call it being harsh by any means.
I do believe this is a good mod, worth doing. Please note that my tranny is quite new, on older ones this mod could be even better.
To make the mod was a piece of cake, the description was a good one.
I cut a T20 torx wrench and welded on a plate to make the screwing easy. So I screwed up a T20 but got a pretty special tool...
I turned the little thing in about two and a quarter turn and it was all, then little resistance had been felt, so this is the end. Put together the tranny, filled up with oil (almost 3 litres, nothing more!)
This is a Golf III variant (Estate for the blokes overseas..
After the mod I felt that the slipping at the 1st and 2nd gear got less and there is more pull at this gears but the difference is not big. The gear change got a little more noticeable but I would not call it being harsh by any means.
I do believe this is a good mod, worth doing. Please note that my tranny is quite new, on older ones this mod could be even better.
zanzabar
Vendor
- Joined
- Oct 18, 2002
- Location
- Petaluma, CA
- TDI
- 2004 Jetta BEW 5spd (dual duty track car and daily driver beater)
Little bit maybe, but it smooths out over time.
So is my surging at about 40mph going to get better or worse if I max out the clicks, I am at 15 clicks right now and the surge is getting worse NOT better over the last 3 weeks.
EDIT:
This weekend I maxed out the clicks, about 5 more. And check the fluid level.
The shifts are much firmer and seems to hold it's gear longer. Best thing is that the surging I had isn't there anymore. Could be that I reset the fuzzy logic at the same time? But I will keep the board posted as some others have experienced this issue.
EDIT:
This weekend I maxed out the clicks, about 5 more. And check the fluid level.
The shifts are much firmer and seems to hold it's gear longer. Best thing is that the surging I had isn't there anymore. Could be that I reset the fuzzy logic at the same time? But I will keep the board posted as some others have experienced this issue.
Kabin
Veteran Member
Wish there was a thread on the appropriate vag-com setting to make the tip tranny shift with some sportiness.
Judson
Veteran Member
I did the line pressure mod in the Fall, and I'd never go back.
Shifts like a normal tranny now, and will probably save the
tranny quite a bit of life.
Did the recode to the 00011 about a week ago. Barely noticeable
difference. Makes decisions a slight bit better.
Shifts like a normal tranny now, and will probably save the
tranny quite a bit of life.
Did the recode to the 00011 about a week ago. Barely noticeable
difference. Makes decisions a slight bit better.
Kabin
Veteran Member
Interesting, which tranny does the 00011 recode work on? Do you know if there's a thread discussing the tranny recode topic?
I'm apprehensive to twist away on an adjustment unless I know exactly what it affects. To my tranny naive way of thinking, higher line pressure would make a pump work harder than it would be normally continuously rated for.
I'm apprehensive to twist away on an adjustment unless I know exactly what it affects. To my tranny naive way of thinking, higher line pressure would make a pump work harder than it would be normally continuously rated for.
boostedtoys
Active member
- Joined
- Feb 26, 2004
ok old thread but new to me.
so when you tune the screw it will make a click sound?
my tranny has 11000 miles on it do you think i should wait till about 30'000 to do this?
so how many clicks whould you do at this point if you had to do this mod again? and what tranny oil are you guys useing?
so when you tune the screw it will make a click sound?
my tranny has 11000 miles on it do you think i should wait till about 30'000 to do this?
so how many clicks whould you do at this point if you had to do this mod again? and what tranny oil are you guys useing?
Ynot
Veteran Member
Kabin, there is a thread on the tranny codes, damn I do not remember who posted, but there are I think 3 or 4 different codes and what each is for. The tranny is used in different VW models so they just code the tranny to shift for that model. My wifes jetta a gasser has the same auto as me in my TDI and new they shifted differently, now since adjusting it has a crisper shift. This adjustment is actually 'Better" for your tranny due to less slipping and less heat. I have read European posters have been doing this for some time, it actually is a fix for some minor tranny issues that mechanics use. If uncomfortable, then leave it alone. Once done, it's pretty much done.
You turn in the pressure adjuster ALL the way until it stops with out forcing it. It is held in position by a "star" washer type arrangement so it won't back out. If very careful you can back it out, but not recommended for the weak of heart. Do it when the service is needed, unless you like spending money on fluid and a service kit now. There are pictures in KERMAS post.
Ynot
You turn in the pressure adjuster ALL the way until it stops with out forcing it. It is held in position by a "star" washer type arrangement so it won't back out. If very careful you can back it out, but not recommended for the weak of heart. Do it when the service is needed, unless you like spending money on fluid and a service kit now. There are pictures in KERMAS post.
Ynot
Kabin
Veteran Member
Thanks Ynot. I've been keeping tabs on possible aftermarket tip tranny upgrades over at vwvortex. It's sound far more expensive, so I'll keep this idea in mind when it comes time for servicing.
Slave2school
Top Post Dawg
Hehehe, just had my fluid and filter changed at my local favourite garage (Jack Lowe Automotive) and asked the mechanic if he wouldn't mind adjusting hte line pressure for me if I show him how.
WEll, after he ground off half a t-20 bit I held it in securely with a screwdriver for leverage and he cranke daway on it with his wrench. We got 32 clicks or so out of it
Now the car feels much more connected to the road through the fuel pedal and the delay from R-D is vastly shortened. I would have to say that the ride isno less smoothe than it was before, but the shifts are faster, and the pull from 3k-4k is great, much much more push back in the seat, especially in 1-2-3rd gears. Feels just about as good as when I have the evry mod on, so I know it has to have been slipping in excess before this evening.
Total cost, $117 taxes Included for the fluid (VW approved) filter and "adjustment".
WEll, after he ground off half a t-20 bit I held it in securely with a screwdriver for leverage and he cranke daway on it with his wrench. We got 32 clicks or so out of it
Total cost, $117 taxes Included for the fluid (VW approved) filter and "adjustment".
dantheswim
Veteran Member
Anyones trans. shift hard after periods of highway driving BEFORE you did this mod? I get a harsh shift between 2nd and 3rd for a few miles or so after highway driving (65mph+). I was going to do this mod soon but I don't want it to make this problem worse. If it made it worse I think the tranny might jerk right off the car
TDIRyan
Veteran Member
I have some hard shifts right after leaving the highway too - and mine is stock for now.
vwandtherest
New member
Ive got a 1999 100k miler B5 Passat (UK) having trouble with the gearbox, when I come up to junctions it is giving no drive, then when I apply throttle it slams into gear. I dropped the pan and while I was there I adjusted the line pressure but only got 1.5 turns in , it did go further but the tabs were actually forced in so I wound it back untill the teeth caught again, (a heart stopping moment) any hoo, even with one or so turns it has made a slight difference - not to my original problem tho. If any one in the uk knows a good rebuilder.... see photos below (link)
http://www.e-minor.co.uk/motor/vw/B0-passat/gearbox
http://www.e-minor.co.uk/motor/vw/B0-passat/gearbox
pdxgrease
Veteran Member
My 2002 ALH Auto with 90k miles on it just got a tranny fluid and filter change, and line pressure mod. The difference is not subtle. My tranny is set to 00011 as well. Basically it feels like factory "sport" now - very nice! I would recommend this to anyone with an 01M tranny with fluid that needs a change. My fluid was dark with silty particles - it probably wasnt working too well anymore. There is none of the wishy washy lockup behavior, shifts are crisp but it will stay in gear to ride out the torque curve if you dont punch the throttle. Just do it, you will like it - plus it'll save your tranny!
delste
Veteran Member
Kerma:
How do you reset fuzzy logic on an 04 tiptronic Jetta?
How do you reset fuzzy logic on an 04 tiptronic Jetta?
pdxgrease
Veteran Member
strange thang - mod helped reduce smoke??!!??
I'm having a hard time accepting this, but it seems that my recent fluid change and line pressure mod - reduced smoke.. As funny as that sounds there is a serious reduction in smoke noticeable especially below 3k rpms. The only thing I can attribute this too is that its not hanging out in lower rpms trying to unlock or lock or whatever. Before the mod, the tranny would bubble (or stumble) before it found the next gear. Now the tranny is acting the way I would expect a newer car to shift but with less smoke too. My ALH is stock except for bosio .216's and some vagcom mods (like timing advance and tranny 00011 setting). Anywayz - I thought I'd share this heart-warming experience
I'm having a hard time accepting this, but it seems that my recent fluid change and line pressure mod - reduced smoke.. As funny as that sounds there is a serious reduction in smoke noticeable especially below 3k rpms. The only thing I can attribute this too is that its not hanging out in lower rpms trying to unlock or lock or whatever. Before the mod, the tranny would bubble (or stumble) before it found the next gear. Now the tranny is acting the way I would expect a newer car to shift but with less smoke too. My ALH is stock except for bosio .216's and some vagcom mods (like timing advance and tranny 00011 setting). Anywayz - I thought I'd share this heart-warming experience
Biodezl
Veteran Member
strange thang - mod helped reduce smoke??!!??
Darn! I must have over-torqued the tranny case bolts. I used a brand new gasket and other stuff, but at my last oil change a few days ago I noticed a very small amount of that smelly transmission fluid on the underside of the protective shield.
Does anyone know the best way to fix this problem? Do I have to drain the fluid, pull the tranny cover off, and re-torque the whole thing? Or, can I can fix this problem by loosening, then re-torquing the bolts?
Help!
Darn! I must have over-torqued the tranny case bolts. I used a brand new gasket and other stuff, but at my last oil change a few days ago I noticed a very small amount of that smelly transmission fluid on the underside of the protective shield.
Does anyone know the best way to fix this problem? Do I have to drain the fluid, pull the tranny cover off, and re-torque the whole thing? Or, can I can fix this problem by loosening, then re-torquing the bolts?
Help!
AlanTDI
Veteran Member
- Joined
- Apr 18, 2002
- TDI
- 1996 Passat wagonTDI, 02 jetta sedan, on the dark side 2017 Rav4
Re: strange thang - mod helped reduce smoke??!!??
Hi Biodezl:
When I changed the fluid on my Golf, I did the same thing only worse. I broke the bolt off in the tranny casing.
What I ended up doing was drilling through the case and used a bolt and nut on the other side.
Loosen the bolts, they don't have be to tight. The rubber seal will leak if they are.
Helpfully that will solve your leaking.
Alan
Hi Biodezl:
When I changed the fluid on my Golf, I did the same thing only worse. I broke the bolt off in the tranny casing.
What I ended up doing was drilling through the case and used a bolt and nut on the other side.
Loosen the bolts, they don't have be to tight. The rubber seal will leak if they are.
Helpfully that will solve your leaking.
Alan
Occams_Razor
Veteran Member
The jerkiness after highway driving is almost eliminated in both of my cars with the line pressure mod.Anyones trans. shift hard after periods of highway driving BEFORE you did this mod? I get a harsh shift between 2nd and 3rd for a few miles or so after highway driving (65mph+). I was going to do this mod soon but I don't want it to make this problem worse. If it made it worse I think the tranny might jerk right off the car
I am in dire need of changing trans fluid 107,000 mi and never been changed. is this something I could do? have taken apart a 2.5 dodge turbo engine and "rebuilt it" just cleaned the engine and put it back together and now it doesen't smoke. Do all my own oil changes. my dad has a lift in our shop. I know I am incredibly lucky. I really cannot afford for this to screw anything up because this is my daily driver and only car that i am paying for still. Also I do not make tons of money so having to rebuild the transmission is nearly out of my means. I just don't want to mess anything up.
BTW my shift time from r to d is sometimes as long as three seconds. I never get on the gas until it cliks in though.
it appears that this will help it but will it fix the problem alltogether. and where is a good source to get the trans service kit. without vag com how do you know how much fluid to put in?
BTW my shift time from r to d is sometimes as long as three seconds. I never get on the gas until it cliks in though.
it appears that this will help it but will it fix the problem alltogether. and where is a good source to get the trans service kit. without vag com how do you know how much fluid to put in?
JKnowledge
Veteran Member
There is no safe way to know how much fluid to put in without a VAG-COM. You can drain your fluid into a container with measurement marks, and refill with that amount of fresh fluid, but that doesn't insure that it will be the correct amount. I have had this mod for 30,000 miles now, no problems so far. I had the slight hesitation when shifting into drive before I did the mod, and I still have it, although it only happens to me in the dead of winter. I believe that some people have had it fix that problem. The shifting is SO much crisper after doing the mod. Completely eliminated the "searching" that my gearbox seemed to do before.
TDIparts.com has the filter kit for $20 and fluid for $10/liter.
You only need the vagcom to measure temperature, you can just use your hand and estimate - then remove the lower screw to check for proper fill level. There's a write up on the entire procedure, written by drivebywire - do a search.
Having access to a car lift will make things much easier - it's really not very technical - just read the writeup a few times to understand the process. While you're in there, adjust the line pressure, that may help your Drive-Reverse shifting issue.
You only need the vagcom to measure temperature, you can just use your hand and estimate - then remove the lower screw to check for proper fill level. There's a write up on the entire procedure, written by drivebywire - do a search.
Having access to a car lift will make things much easier - it's really not very technical - just read the writeup a few times to understand the process. While you're in there, adjust the line pressure, that may help your Drive-Reverse shifting issue.
TDI_Jeffster
Veteran Member
Anybody know if the line pressure mod will work on the 01V (auto, 5 speed) trannies? I have to replace my tranny pan and thought about doing this mod while I had the pan off. Also, what creative ways are you guys filling up the tranny with? The dealer quoted me $316 for their VAG1924 charging device!!
-Jeff
-Jeff
rotarykid
Top Post Dawg
- Joined
- Apr 27, 2003
- TDI
- 1997 Passat TDI White,99.5 Blue Jetta TDI
Will this mod work on a 05 Passat TDI 5spd tip???
TDI_Jeffster
Veteran Member
No. You have a 01V transmission, same as mine. While I had my pan off this past weekend, I looked around for a way to adjust the pressure as Kerma showed for the 4 spd trannies. There are a ton of wires under there, but nothing to adjust the pressure with.
-Jeff