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Author Topic: Auto box problems  (Read 1927 times)

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Gaffers

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Auto box problems
« on: 30 March 2007, 09:27:18 »
Been having a few probs with the auto box.
 
When accelerating to around 30 sometimes it will drop out of gear, esp if I accelerate quickly and then cruise at 30ish.  It doesnt happen at any other speed or if I continue to accelerate pass 30.  It will stay out of gear until I release the gas and then after a few seconds the whole car will jump forward and a thud will be heard.  Sometimes after the thud the 'check automatic gearbox' warming comes on the display but not all the time.  If I drop it into 2nd when it slips decellerate and then move the gears up it will recover fine with no warning.

Am I in trouble? I will be doing the gearbox level check soon, and I am considering renewing the oil and cleaning the filter.  Is there anything else I should suspect or is the box on its way out?
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TheBoy

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Re: Auto box problems
« Reply #1 on: 30 March 2007, 09:33:43 »
Renew the fluid/filter ASAP before more damage is done.  May need new box though....
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ClarCE

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Re: Auto box problems
« Reply #2 on: 30 March 2007, 09:37:41 »
Quote
Renew the fluid/filter ASAP before more damage is done.  May need new box though....

Is the filter the magnet in the large sump?
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Re: Auto box problems
« Reply #3 on: 30 March 2007, 09:38:20 »
Quote
Quote
Renew the fluid/filter ASAP before more damage is done.  May need new box though....

Is the filter the magnet in the large sump?
No, there is another filter...
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Re: Auto box problems
« Reply #4 on: 30 March 2007, 09:55:04 »
poo, dont like the idea of replacing the box.   :-[ I hope the fluid change and filter clean will work.

How do I clean the filter properly?  Solvent, WD40.....?
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Re: Auto box problems
« Reply #5 on: 30 March 2007, 10:58:39 »
Quote
poo, dont like the idea of replacing the box.   :-[ I hope the fluid change and filter clean will work.

How do I clean the filter properly?  Solvent, WD40.....?
The filter can be renewed. If its still decent, I guess the usual parafin type products will work, but make sure you get all parafin out before refit.
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ClarCE

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Re: Auto box problems
« Reply #6 on: 30 March 2007, 11:11:43 »
Quote
Quote
Quote
Renew the fluid/filter ASAP before more damage is done.  May need new box though....

Is the filter the magnet in the large sump?
No, there is another filter...

 :-/ is it an easy one to get too?
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Re: Auto box problems
« Reply #7 on: 30 March 2007, 11:14:02 »
Quote
Quote
Quote
Quote
Renew the fluid/filter ASAP before more damage is done.  May need new box though....

Is the filter the magnet in the large sump?
No, there is another filter...

 :-/ is it an easy one to get too?
Once sump off, I believe so...
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ClarCE

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Re: Auto box problems
« Reply #8 on: 30 March 2007, 11:15:41 »
Quote
Quote
Quote
Quote
Quote
Renew the fluid/filter ASAP before more damage is done.  May need new box though....

Is the filter the magnet in the large sump?
No, there is another filter...

 :-/ is it an easy one to get too?
Once sump off, I believe so...

 :y
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Re: Auto box problems
« Reply #9 on: 02 April 2007, 10:10:21 »
When refitting the sumps is it best to get a new gasket AND liquid gasket or just use liquid gasket with the old ones?

Can I use any liquid gasket as I cannot find the loctite stuff...?
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Markjay

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Re: Auto box problems
« Reply #10 on: 02 April 2007, 10:32:43 »
Quote
When refitting the sumps is it best to get a new gasket AND liquid gasket or just use liquid gasket with the old ones?

Can I use any liquid gasket as I cannot find the loctite stuff...?

Liquid gasket should be used instead of the normal one, not in addition.

If using a nromal gasket, you could add some suitable RTV sealant, but I wouldn't recomend it as standrad procedure unless there was a known issue of leaks if sealant is not used (e.g. the camcovers seals).

As for Loctite, I did not try alternative products myself but I suppose any good brand product of similar description would do...





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JamesV6CDX

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Re: Auto box problems
« Reply #11 on: 02 April 2007, 13:17:59 »
Quote
Been having a few probs with the auto box.
 
When accelerating to around 30 sometimes it will drop out of gear, esp if I accelerate quickly and then cruise at 30ish.  It doesnt happen at any other speed or if I continue to accelerate pass 30.  It will stay out of gear until I release the gas and then after a few seconds the whole car will jump forward and a thud will be heard.  Sometimes after the thud the 'check automatic gearbox' warming comes on the display but not all the time.

Am I in trouble?


Yes. You are in trouble :(

The fluid change may cure it, but when this happened to me.. the box ended up slipping so much it shagged it.

Ended up fitting a replacement (thankfully freebie) box.. not a hard job though.

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Re: Auto box problems
« Reply #12 on: 03 April 2007, 00:07:48 »
Hi James,

Are you done with the cam locking kit? Or are you still busy doing your engine rebild?  I just need it for a couple of days max to do my timing belt if poss........

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Re: Auto box problems
« Reply #13 on: 03 April 2007, 12:07:08 »
Right sump is off:

-magnet is covered in what can only be described as black grease but is prob just really fine metal particles mixed with thick DextronIII.
-the oil is very dark red
-the oil did have just a few really really small metal particles prob less than 1/10th of a mm but not that many ( I saw 5)
-no big metal bits
-filter looks blocked, cleaned with parafin now seems to flow ok but not so good that would indicate a broken filter

I guess the prognosis so far is ok?  I was fearing much worse.....

Gaffers
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JamesV6CDX

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Re: Auto box problems
« Reply #14 on: 03 April 2007, 12:38:45 »
Hi Gaffers...

Sorry for the slow response!

I'm hoping I will be finished with it on Weds eve, Thurs eve at latest

Cheers
James

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