Paulie2256 Donating Members 7,441 Member For: 16y 4m 21d Gender: Male Location: SE Melbourne Posted 18/08/12 01:27 AM Share Posted 18/08/12 01:27 AM It could be a bazillion things... Link to comment https://www.fordxr6turbo.com/forum/topic/81501-zf-6-speed-auto-not-changing-from-3rd-t-4th/page/3/#findComment-1280975 Share on other sites More sharing options...
F6turbo Member 172 Member For: 18y 10m 8d Gender: Male Location: Sydney Posted 18/08/12 09:36 AM Share Posted 18/08/12 09:36 AM On 17/08/2012 at 12:53 PM, mr_crust said: If it is the clutch pack does that require a gearbox rebuild or can they be changed? On 17/08/2012 at 1:31 PM, rednose said: Rebuild, mine does the sameIs there a reason why the friction and steel plates cannot be replaced for new items in clutch pack E on their own? I dont see why a full rebuild is needed unless you wanted to beef up the trans...? Link to comment https://www.fordxr6turbo.com/forum/topic/81501-zf-6-speed-auto-not-changing-from-3rd-t-4th/page/3/#findComment-1281157 Share on other sites More sharing options...
Vevapower Waiting for the 1st N/A 12! Donating Members 2,533 Member For: 17y 2m 1d Gender: Male Location: Sydney Posted 18/08/12 11:24 AM Share Posted 18/08/12 11:24 AM (edited) On 18/08/2012 at 9:36 AM, F6turbo said: Is there a reason why the friction and steel plates cannot be replaced for new items in clutch pack E on their own? I dont see why a full rebuild is needed unless you wanted to beef up the trans...?Seeing the rest of the frictions and steels are only another $100 why wouldnt you do the lot! It's the labour and oil the pump it up! Edited 18/08/12 11:24 AM by Vevapower Link to comment https://www.fordxr6turbo.com/forum/topic/81501-zf-6-speed-auto-not-changing-from-3rd-t-4th/page/3/#findComment-1281187 Share on other sites More sharing options...
F6turbo Member 172 Member For: 18y 10m 8d Gender: Male Location: Sydney Posted 19/08/12 10:11 AM Share Posted 19/08/12 10:11 AM I'm thinking DIY, get in there and change just the worn out parts yourself. Why pay 5k or so for a small issue such as slip in 4th. Link to comment https://www.fordxr6turbo.com/forum/topic/81501-zf-6-speed-auto-not-changing-from-3rd-t-4th/page/3/#findComment-1281552 Share on other sites More sharing options...
Vevapower Waiting for the 1st N/A 12! Donating Members 2,533 Member For: 17y 2m 1d Gender: Male Location: Sydney Posted 19/08/12 10:39 PM Share Posted 19/08/12 10:39 PM Yeah you could do dyi for sure. Though if you fnd that there's a fair bit of sh*t in the oil and pan it would also be a good idea to put new solenoids in as well. Actually parts alone on a simple re build are around $1700. Link to comment https://www.fordxr6turbo.com/forum/topic/81501-zf-6-speed-auto-not-changing-from-3rd-t-4th/page/3/#findComment-1281713 Share on other sites More sharing options...
PookeyMaster Donating Members 1,531 Member For: 14y 3m 24d Gender: Male Location: Parramatta, NSW Posted 20/08/12 12:51 AM Share Posted 20/08/12 12:51 AM Plus, consider how long you'll be spending looking at manuals if you've never done a transmission before... Link to comment https://www.fordxr6turbo.com/forum/topic/81501-zf-6-speed-auto-not-changing-from-3rd-t-4th/page/3/#findComment-1281751 Share on other sites More sharing options...
Timmy-XR6T Silver Donating Members 179 Member For: 15y 7m 30d Gender: Male Location: Sydney, Inner South Posted 20/08/12 01:01 AM Share Posted 20/08/12 01:01 AM On 17/08/2012 at 12:36 PM, Vevapower said: Mechatronic only reacts to its physical components,oil characteristics and sensors so to say its the mechatronic itself is not correct. If all componentary wise in your box was fine you would not have any issues with slip yeah! You see once you burnt up frictions there's no way they'll come good again and they just get worse. So what's happening in your box atm under load between 3rd to 4th is that due to the slip (E clutches in bad shape) the speed sensors are saying to the mechatronic " hey man there's way to much slip going on here so there's no way I'm going to let it change up to 4th". So what usually happens is that it will either rev out or you inadvertently lift off enough whilst this is happening enough to lower the load enough for the mechatronic to then say hey I'm good now and it will thud into 4th.Now as wear continues to get worse over time it will refuse to change under less and less load.A ZF tune might mask it for a while with more line pressure but in time you will still have the same result.Hope this gives you a little bit of insight..Fair comments - I had very similar issues 3rd->4th on WOT, and then later 5th and 6th were slipping. I had a service and tune which seemed to improve (read mask) it but after a while it all started to give way. Now I've gone the rebuild it feels allot stronger and now booking in for a retune of the ZF to get it running smoothly as the old tune is still compensating for the old issues I had.My two cents, bite the bullet, just rebuild it and save all the hassle with everything else. If its burning out now its only a matter of time before it gets worse. Link to comment https://www.fordxr6turbo.com/forum/topic/81501-zf-6-speed-auto-not-changing-from-3rd-t-4th/page/3/#findComment-1281756 Share on other sites More sharing options...
mr_crust Member 44 Member For: 14y 4m 25d Gender: Male Location: Melbourne Posted 20/08/12 04:06 AM Author Share Posted 20/08/12 04:06 AM (edited) well had it looked at today the issue was due to having a 19" rim on the front right and the factory spare 17" on the front left (valve stem popped of that's why I have mismatched rims)...Ford explained due to the size difference the the car thinks its constantly turning therefore wont allow it to move from 3rd to 4th whilst in drive, which explains why I can make the decisions and move into 4th using perf mode.... as soon as I put the 19" back on, It allows me to shift as normal..so I'm replacing all 4 tyres with Michelin pilot super sports :) Edited 20/08/12 04:08 AM by mr_crust Link to comment https://www.fordxr6turbo.com/forum/topic/81501-zf-6-speed-auto-not-changing-from-3rd-t-4th/page/3/#findComment-1281846 Share on other sites More sharing options...
Paulie2256 Donating Members 7,441 Member For: 16y 4m 21d Gender: Male Location: SE Melbourne Posted 20/08/12 04:29 AM Share Posted 20/08/12 04:29 AM On 17/08/2012 at 11:51 AM, bionicxr6t05 said: Fooked mechatronics...Well you were sort of right with this one. At least the closest to the truth. haha Link to comment https://www.fordxr6turbo.com/forum/topic/81501-zf-6-speed-auto-not-changing-from-3rd-t-4th/page/3/#findComment-1281851 Share on other sites More sharing options...
mr_crust Member 44 Member For: 14y 4m 25d Gender: Male Location: Melbourne Posted 20/08/12 04:34 AM Author Share Posted 20/08/12 04:34 AM im just surprised there is a sensor which detects it, he mentioned the abs sensor ...basically from my understanding is that the drive gear will not upshift when in 3rd of higher if the car is turning state.... Link to comment https://www.fordxr6turbo.com/forum/topic/81501-zf-6-speed-auto-not-changing-from-3rd-t-4th/page/3/#findComment-1281853 Share on other sites More sharing options...
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