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  #1  
Old 15th-June-2010, 19:52
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Join Date: Jun 2010
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Default P38 auto gear box fault

The poor performance fault on my Range Rover i thort was engine / fuel related is now a suspect auto gearbox problem, it does not change up into top gear, is there any common reason for this....or should i just break it for parts
( P38 2.5 dse auto 1996 )
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  #2  
Old 15th-June-2010, 20:19
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Location: norwich
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Default Re: P38 auto gear box fault

whats been your prob,mine popped a gearbox fault up today,but you have me worried as i been feeling like my truck is sluggish around 45-50 and i have to give it plenty of boot once its in top gear to get it to pull.
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  #3  
Old 15th-June-2010, 21:02
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Default Re: P38 auto gear box fault

There is no fault lights on, when i drive it slow, around car parks etc its fine, but on the road its slow to change up and wont go into top gear ( possibly the last two gears !) it just does not seem right.
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Old 15th-June-2010, 21:10
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Default Re: P38 auto gear box fault

it could be your gearbox ecu..
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Old 15th-June-2010, 21:26
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Default Re: P38 auto gear box fault

Is the gearbox ecu coded to the vehicle, or is it somthing i can get second hand and just plug in..( any idear where its located )
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Old 15th-June-2010, 21:45
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Default Re: P38 auto gear box fault

before you scrap it or spend hundreds on an ecu, have you tried an autobox fluid and filter change? can work wonders when the box is playing up and is alot cheaper than just replacing parts in the hope that it cures it
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Old 15th-June-2010, 22:29
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RAV RAV is offline
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Default Re: P38 auto gear box fault

Quote:
Originally Posted by gegs88 View Post
before you scrap it or spend hundreds on an ecu, have you tried an autobox fluid and filter change? can work wonders when the box is playing up and is alot cheaper than just replacing parts in the hope that it cures it

Definately worth a go - filter kits can be found on ebay for about 20, then get yourself some fluid and crack on - amazing the difference it makes.
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Old 16th-June-2010, 01:16
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Default Re: P38 auto gear box fault

do a gearbox fluid and filter change,i used lucas atf and this made one hell of a difference to how my auto box changed up and down the gears,also it is now as smooth as silk when changing up and down.i got my atf of ebay,if you want the details just get in touch.
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Old 16th-June-2010, 09:17
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Default Re: P38 auto gear box fault

Sounds like a sticky govenor. Can be helped by changing fluid and filter. But not always. You could try changing filter and fluid, running car for a couple of weeks, then changing fluid again. Keep changing fluid until it is absolutly clean. As there is always 4 litres or so fluid left in you cannot drain.
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Old 16th-June-2010, 18:16
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Default Re: P38 auto gear box fault

Maybe you should get the fault codes read, maybe it's in "Limp Home" mode.
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