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23-11-2005, 10:29 AM
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Cookie Monster
Join Date: Sep 2005
Location: Sydney
Posts: 371
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Hi Guys,
My Au 2 XR8 on the odd occasion will get vey rough on the 1-2 shift. It happens at light throttle applications and it feels as if the car is not going anywhere when it is about to thump into 2nd. I understand this is a problem with the 4 speed auto and there is a ford ecu software flash that supposedly fixes it. It is very annoying as it is a fair thump in the driveline when it occurs. I am reluctant to get ford to flash the ecu before I know what the story is. Could anyone out there shed some light on this if they have the issue or if they have the solution.  Cheers Engineer |
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23-11-2005, 03:13 PM
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BA Xr8
Join Date: Feb 2005
Location: NZ
Posts: 917
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Hello engineer, I also have a 200kw AUII XR8 auto. The ruff gearshift I had was during the down change from 2-1. Driving around car parks etc was typically a very unrefined experience. The ECU upgrade or re-flash improved the problem by about 95%. It still does the occasional ruff downchange but nowhere as bad nor anywhere as often. Other than the improved smoothness I didn't notice any other change to the cars performance. The reflash was a factory recall so shouldn't cost you any money yourself.
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23-11-2005, 05:33 PM
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Regular Member
Join Date: Mar 2005
Posts: 216
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Engineer your problem could be low transmission oil, does it do it more when cold?
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23-11-2005, 05:59 PM
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Giddy up.
Join Date: Dec 2004
Location: Kramerica Industries.
Posts: 15,608
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I to have an AU II XR8 but as like what SBCB say's it does this on the down shift, 2-1, but I just take it easy and it seem's to be allright, or when driving in town I leave it in 3rd and it seem's to be allright, what mode do you have the tramission in?, have you tried the sport's/adtp/economy/.
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24-11-2005, 10:10 AM
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Cookie Monster
Join Date: Sep 2005
Location: Sydney
Posts: 371
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Hi Guys,
I have just had the transmisson serviced and it did not make much of a difference. A little I think. The problem is occasional and it is mostly on the 1-2 shift under really light throttle applications. Under normal throttle it is fine. Very very occasionally it will have a rough (but no way as rough as the 1-2 )2-1 shift. The auto has been in all modes econ/adaptive and max performance and it made no difference to the shift roughness. Currently set to max performance in the shift programming. I am guessing a valve body problem but I just thought I would get some feedback from you guys. Cheers Engineer |
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4 speed 1-2 shift clunk
Linear Mode
