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17-03-2012, 05:10 PM
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FF.Com.Au Hardcore
Join Date: Jun 2006
Location: Western Australia
Posts: 2,195
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The auto in my 5.0l AU2 has developed an issue where if you downshift into 2nd or 1st (to slow down) it just goes into neutral. D to 3rd is fine, gearbox upshifts by itself fine, doesn't slip.
Firstly, doesn't seem to matter at what speed - into 2nd at 30km/h, into 2nd at 60km/h, still hits neutral until you touch the throttle... Things I've tried: I've just reset the ECU etc by leaving the battery disconnected for two days, no change (except for the engine having to re-learn idle speed). Changed the auto fluid (Castrol TQ95) and fitted a new pickup filter. Drained around 4.5 litres by just dropping the pan, then refilled it ~4.0 litres (till full), started up and ran through the gears and needed to add another ~500ml (till full). Last of all, at the same time I fitted a PWR trans cooler. Cooler gets nice and warm (indicating fluid flow) but still no 1st or 2nd when downshifting manually... Any ideas? |
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AU automatic troubles
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