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Old 22-07-2007, 05:49 PM   #1
satmel
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Angry Au2 Auto transmission probs

Guys, We've got two 2001 Au2's and both have developed the same auto tranny problem!. There is a pronounced delay when they shitft from first to second gear. Could lead to accidents. Anyone else have this prob?.
How can i fix them?. :togo:
Cheers!.

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Old 22-07-2007, 05:54 PM   #2
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Quote:
Originally Posted by satmel
Guys, We've got two 2001 Au2's and both have developed the same auto tranny problem!. There is a pronounced delay when they shitft from first to second gear. Could lead to accidents. Anyone else have this prob?.
How can i fix them?. :togo:
Cheers!.
How many kays have they done? How long ago was the auto on both serviced?

GK
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Old 22-07-2007, 06:03 PM   #3
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The Sr had the tranny serviced only a year ago. The Forte had it done 2 years ago. Both cars are under 200,000K's.
Cheers.
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Old 22-07-2007, 06:06 PM   #4
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Id say get them serviced.
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Old 22-07-2007, 06:39 PM   #5
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I'd be guessing at low fluid, so a service and fluid flush would be in order. If that doesn't fix it, then it could be one or more of the valves/solenoids that control fluid flow - not cheap!
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Old 22-07-2007, 07:12 PM   #6
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sounds like the S5 solenoid this controls the line pressure and will result in delayed 1/2 shifts if it is on its way out
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Old 22-07-2007, 10:14 PM   #7
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Originally Posted by au3xr6
sounds like the S5 solenoid this controls the line pressure and will result in delayed 1/2 shifts if it is on its way out
I thought that the S5 controls the downshifts moreso. A crook S5 usually displays trouble on downshifts, especially the 2-1.

In any case, I'd follow JC's advice, go a full flush and service for each trans @ approx $250 per vehicle and that should get it sorted. I know that's a fair amount of moula, but a full flush uses a stack of trans fluid.

If the problem still persists, then the solenoid and valve body treatment might need to be next. I've had that job quoted at $450.

For the record, a reco tranny is about $1650 give or take a bit.

All the best with it,

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Old 22-07-2007, 10:19 PM   #8
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my understanding is the S5 is line pressure and effects both up and down shifts. a shift kit alters the S5 signal and it gives a firmer up and downshift
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Old 23-07-2007, 10:39 AM   #9
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By the sounds of it ... it needs a service.

Seeing as it was serviced over a year ago at least ... it's long overdue for a service.
It may have plenty of fluid in the transmission ... but like i found with mine ... the fluid had degraded and is like water (not the correct viscosity to keep line pressure up).

For starters ... service it ... your transmission will love you for it ... most common reasons for them to fail is lack of servicing.

If problems still persist ... get it checked out further.
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Old 23-07-2007, 10:45 AM   #10
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Service definitely, 12 months is a fair while to go without one let alone 24 months.
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Old 23-07-2007, 08:03 PM   #11
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if ur goona get ur tranny serviced i recommend 'aussie car enhancements' they did mine for $120 took an 1.5 to do. and has worked properly ever since.
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Old 23-07-2007, 08:55 PM   #12
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Quote:
Originally Posted by RedXR347
Service definitely, 12 months is a fair while to go without one let alone 24 months.
Absolutely- I let my tranny servicing go for a year and a bit, due to mainly laziness and complacency on my part- and I have spent the last 2 months and many dollars getting it back up to scratch.It is sweet now, but after a leaky rear housing seal, failed solenoids (S5- very scary driving when these go),several leaky gasket replacements and 3-yes 3, lots of tranny fluid to finally get rid of all the acumulated gunk and crap in my auto, I learnt not to neglect the servicing of the auto.
They are good reliable and strong transmissions,but as Mechan1k said, the main reason for failures on them is lack of maintenance.
Mine is sweet again now- and I get it serviced every 3 months now,regardless of fluid condition.
Good luck!
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