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Author Topic: gearbox has mind of its own  (Read 995 times)

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sparkyw666.

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gearbox has mind of its own
« on: 02 August 2009, 02:22:13 »
hi folks just been for a run up north 331 round trip brilliant drive averaged 32.1 mpg. now the box. all was good until u hit 50 when its meant to change into forth gear and it just wouldn't change floored it up to 70 still no change then eventual it changed up done this about 6-7 times on the run has anyone ever had this :y
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Pete Elite

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Re: gearbox has mind of its own
« Reply #1 on: 02 August 2009, 02:26:49 »
Is it possible that the sports mode is sticking as i think I'm right in saying that in sports mode it doesn't change into 4th :-/.
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sparkyw666.

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Re: gearbox has mind of its own
« Reply #2 on: 02 August 2009, 02:33:30 »
Quote
Is it possible that the sports mode is sticking as i think I'm right in saying that in sports mode it doesn't change into 4th :-/.
nope don't think so never used sports mode tried using it just to make sure even tried dropping it into third then back into drive still no joy then about half a mile it changes its self :y
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Re: gearbox has mind of its own
« Reply #3 on: 02 August 2009, 02:38:21 »
Is the [size=18]s[/size][/u] off on the dash display and have you check fluid level?
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sparkyw666.

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Re: gearbox has mind of its own
« Reply #4 on: 02 August 2009, 02:47:00 »
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Is the [size=18]s[/size][/u] off on the dash display and have you check fluid level?
sports is off on the dash. just looking through the service history it done 127000 miles full service up to 104000 nothing about the gearbox fluid got my new timing belt on order so wouldn't hurt to do the fluid at the same time :y
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Re: gearbox has mind of its own
« Reply #5 on: 02 August 2009, 03:06:54 »
Think I'm right in saying the box has an electronic selector switch, so maybe try cleaning the contacts(sure someone will confirm this) :).
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valliant72

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Re: gearbox has mind of its own
« Reply #6 on: 02 August 2009, 03:31:59 »
Hi, not sure if this is of any help, but on reading up about this gearbox. I found that the kickdown switch is part of the accelerator cable and can play up causing strange symptoms, also read that it can be cleaned.
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Mr Skrunts

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Re: gearbox has mind of its own
« Reply #7 on: 02 August 2009, 06:39:47 »
At any point did you stop the car, turn off the engine, then carry on the journey to see if there was any change.

My car when I 1st got it went into what I believe is limp mode, seemed to pull away in just 3rd gear.

Turning off and restarting reset the gearbox and everything has been fine since.

As others have mentioned, sounds electrical, like a dirty connection.  But oil level needs checking.  has it ever had an oil and filter change.
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feeutfo

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Re: gearbox has mind of its own
« Reply #8 on: 02 August 2009, 10:16:01 »
i had this. Eventually realised i had selected 3 instead of D by mistake.....possible?
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sparkyw666.

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Re: gearbox has mind of its own
« Reply #9 on: 02 August 2009, 13:21:52 »
thanks for the replys guys. defo wasint in limp home mode could i be right in thinking it could be a sticky solonoid :y
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