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  #1  
Old 28th-July-2009, 17:33
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Default P38 auto gearbox problem

Hi to you all. I have a 96 diesel and I am getting very heavy gear changes with thumping this started on going down the box particulary on the low gears but now its on all changes also my interior lights have stopped working have checked fuses all ok hope someone can help with these problems
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  #2  
Old 29th-July-2009, 20:55
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Default Re: P38 auto gearbox problem

Hasnt anyone any ideas on my gearbox or interior light problems
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  #3  
Old 29th-July-2009, 21:05
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Default Re: P38 auto gearbox problem

Quote:
Originally Posted by eldescans View Post
Hi to you all. I have a 96 diesel and I am getting very heavy gear changes with thumping this started on going down the box particulary on the low gears but now its on all changes also my interior lights have stopped working have checked fuses all ok hope someone can help with these problems
Could be a variety of things sticky valve block, govenor clogged up with debris. Take a look at Ashcroft transmissions they have a FAQ area i think. Interior lights, have you tried pushing the centre switch on front interior light for more than five seconds, dash message will say interior light active. Or at least mine does, you can switch them off the same way, if someone has inadvetantly done that it maybe your problem.
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  #4  
Old 29th-July-2009, 21:19
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Default Re: P38 auto gearbox problem

Quote:
Originally Posted by eldescans View Post
Hi to you all. I have a 96 diesel and I am getting very heavy gear changes with thumping this started on going down the box particulary on the low gears but now its on all changes also my interior lights have stopped working have checked fuses all ok hope someone can help with these problems
hi,i had similar problems with my auto diesel,changed the g/box filter and re-filled with lucas atf,this has made a vast improvement to my g/box.pm me if you want and i will give you more details of the atf.
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  #5  
Old 31st-July-2009, 09:24
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Default Re: P38 auto gearbox problem

Thanks for the replies pressing light switch has cured problem need to investigate gearbox problem more have changed filter but cannot put lucas atf in as I live in spain and its not available do you have any more information on cures for stickey valve block or blocked govenor thanks again
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  #6  
Old 31st-July-2009, 13:14
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Default Re: P38 auto gearbox problem

Have similar issue with my box and have been advised to remove and clean the governor (although my local garage said they've done this a few times and it didn't improve things), I'll do this when I get chance and see what happens.

I changed my filter and oil but it didn't get any better, in fact if you look at Ashcroft website FAQ they are now saying that the oil can dislodge debris and make the problem worse.

I'm going to do the governor and if that doesn't work I'll just live with it until I need a new box
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  #7  
Old 16th-August-2009, 18:10
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Default Re: P38 auto gearbox problem

I am still experiencing heavy gear changes am thinking of looking at the govenor and valve block where are they and what do I need to look for
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  #8  
Old 16th-August-2009, 18:50
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Default Re: P38 auto gearbox problem

Quote:
Originally Posted by eldescans View Post
I am still experiencing heavy gear changes am thinking of looking at the govenor and valve block where are they and what do I need to look for
PM sent.
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  #9  
Old 29th-October-2010, 14:35
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Default Re: P38 auto gearbox problem

Hi, I have a strange problem with my automatic gearbox on a P38 4.0 liter.
It run only in "R" position, when I am putting it into "D", "3", "2", "1" it is not happening anyting... I have to mention that the car is 1999 model.
Any ideas for fixing this problem?
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  #10  
Old 29th-October-2010, 16:40
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Default Re: P38 auto gearbox problem

An exchange gearbox unfortunately. Someone else had the same problem on here not so long ago.
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  #11  
Old 29th-October-2010, 19:33
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Default Re: P38 auto gearbox problem

Quote:
Originally Posted by eldescans View Post
I am still experiencing heavy gear changes am thinking of looking at the govenor and valve block where are they and what do I need to look for
just a small ?
have you check the fluid level??
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  #12  
Old 31st-October-2010, 01:51
Mike v.t.s's Avatar
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Default Re: P38 auto gearbox problem

Quote:
Originally Posted by eldescans View Post
Hi to you all. I have a 96 diesel and I am getting very heavy gear changes with thumping this started on going down the box particulary on the low gears but now its on all changes also my interior lights have stopped working have checked fuses all ok hope someone can help with these problems

Sound daft but have you checked the UJ's on the front and rear prop, i had a clunky box and i found it was caused by the front prop UJ foookerd...
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  #13  
Old 27th-April-2011, 16:15
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Default Re: P38 auto gearbox problem

Hi can you tell me are you experiencing a wineing from the engine/box when reving or while driving as iam and also 1st to 2nd gear change is very eratic sounds like clutch slipping but don't think it is
Hope someone can help out
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  #14  
Old 9th-August-2011, 23:59
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Default Re: P38 auto gearbox problem

on Automatic Gearbox Range Rover I can explain that when the climb mountain roads with rubble and do not use gears to climb the mountain but with 1 or 2 or d
then in the middle of the road (the gearbox is overhead) what the problem is and how to act in this case as to why this problem occurs only during the summer please give me an answer
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  #15  
Old 10th-August-2011, 00:05
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Default Re: P38 auto gearbox problem

(Hey can give me an opinion on this) in Automatic Gearbox Range Rover I can to explain that when we go up the mountain road with no ballast and gear used to climb the mountain but with 1 or 2 or d
then in the middle of the road (the gearbox is overhead) what the problem is and how to act in this case as to why this problem occurs only during the summer please give me an answer
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  #16  
Old 10th-August-2011, 00:06
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Default Re: P38 auto gearbox problem

(Hey can give me an opinion on this) we Automatic Gearbox Range Rover I can to explain that when we go up the mountain road with no ballast and gear used to climb the mountain but with 1 or 2 or d
then in the middle of the road (the gearbox is overhead) what the problem is and how to act in this case as to why this problem occurs only during the summer please give me an answer
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  #17  
Old 10th-August-2011, 07:58
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Default Re: P38 auto gearbox problem

Quote:
Originally Posted by tipi123 View Post
(Hey can give me an opinion on this) we Automatic Gearbox Range Rover I can to explain that when we go up the mountain road with no ballast and gear used to climb the mountain but with 1 or 2 or d
then in the middle of the road (the gearbox is overhead) what the problem is and how to act in this case as to why this problem occurs only during the summer please give me an answer
If the gearbox is "overhead" it must mean the car is on it's roof. This is usually caused by going round corners too fast:hysterically_ laughi
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  #18  
Old 10th-August-2011, 10:02
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Default Re: P38 auto gearbox problem

Quote:
Originally Posted by tipi123 View Post
(Hey can give me an opinion on this) we Automatic Gearbox Range Rover I can to explain that when we go up the mountain road with no ballast and gear used to climb the mountain but with 1 or 2 or d
then in the middle of the road (the gearbox is overhead) what the problem is and how to act in this case as to why this problem occurs only during the summer please give me an answer
I'm afraid I can't quite make sense of what you're saying.

Repeating it numerous times isn't really helping either.

I think you're saying that your gearbox is overheating? But I don't understand the rest of it.
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  #19  
Old 10th-August-2011, 10:16
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Default Re: P38 auto gearbox problem

Consider low range would be better idea than high drive 1 and 2.

the oil is overheating in if the sensor can be trusted
.
if the sensor is replaced and it still indicates overheating then a custom oil cooler required and electric fan.
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  #20  
Old 10th-August-2011, 10:17
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Default Re: P38 auto gearbox problem

Quote:
Originally Posted by kooky_guy View Post
I'm afraid I can't quite make sense of what you're saying.

Repeating it numerous times isn't really helping either.

I think you're saying that your gearbox is overheating? But I don't understand the rest of it.
i think he is saying that the g/box overheats when he goes up the mountain road in 1st,2nd or just drive.but it only overheats in the summer.he needs an g/box oil cooler,or his one on the car needs cleaning.
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