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Topic: 2.9L Cosworth Auto Box Reverse Issue (Read 2118 times) |
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gdwalker
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I love YaBB 1G - SP1!
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2.9L Cosworth Auto Box Reverse Issue
« on: Apr 18th, 2009, 6:00pm » |
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Hi Guys,
Very recently acquired a 1998 2.9L 24V Cosworth Scorpio, automatic.
All forward gears smooth and fine, but initially reverse was very lumpy, now will not reverse at all!! 
The diff can be seen to take up the slack fine and it sounds like the gear has engaged but the is no reverse drive. When in reverse there is a slight noise best described as scuffing?
Any clues, I'm praying its not a new gear box! I understand there are all kinds of valves and stuff that may cause problems, but really i'm totally at a loss as to the cause.
Any info, particularly if it involves no new gear box will be greatly welcomed.
Regards,
GDWalker
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Scorpio_Mike
Senior Member
Jeep Grand Cherokee 3.0 V6 & 2.8 Sierra XR4i 4x4
Posts: 2354
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Re: 2.9L Cosworth Auto Box Reverse Issue
« Reply #1 on: Apr 18th, 2009, 7:53pm » |
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First thing to check is the fluid level & colour of the fluid - should be pink / red and not be dark brown or smell like burnt toffee or have any debris in it.
If fluid level is low then you have a leak somewhere and you need to find & fix it asap.
Autoboxes don't like running on low fluid.
If fluid is dark brown / smells like burnt toffee / has debris in it then that is sadly not good news.
Fluid in my own car is a pale brown but it has done 138k now but still works faultlessly.
Mechanic friend reckoned it is not uncommon for the fluid to discolour with age & mileage.
Provided the fluid does not show any bad signs you may benefit from a fluid & filter change.
Secondhand gearboxes can be picked up from under £100 upwards but are a bit on the heavy side so you may want to get a garage to change it.
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Star sign is Scorpio !
Sierra XR4i's are great...especially when fitted with 4WD 
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twinturbo
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24V's Me game!
Posts: 904
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Re: 2.9L Cosworth Auto Box Reverse Issue
« Reply #2 on: Apr 18th, 2009, 9:49pm » |
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Quote:
Secondhand gearboxes can be picked up from under £100 upwards |
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What a brilliant nonsensical statement 
I have one currently that's on offer for £20 complete.. If your anywhere near Cumbria ..
TT
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gdwalker
Newbie
I love YaBB 1G - SP1!
Posts: 32
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Re: 2.9L Cosworth Auto Box Reverse Issue
« Reply #3 on: Apr 19th, 2009, 12:04am » |
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Thanks for the info guys..
First of all the car has done 101K miles, the autobox fluid was a little low when I picked the car up, but before driving off, was brought fully up to level (checked whilst running), but most important, it was not burnt or have any unpleasant burned smell to it, in fact it was and still is dark red definitely not brown.
The inference from the entries is that the gearbox is kaput!, before i set about locating a new one (Thanks for the offer TT - I'm in Chesterfield  ) can it be confirmed that the problem is not a hydraulic valve or suchlike thats failed and is therefore not asserting pressure on the drive bands and therefore not a rebuild / recon job?
Regards,
GDWalker
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Tompion
Administrator
1997 2.3 Ultima estate.
Posts: 2918
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Re: 2.9L Cosworth Auto Box Reverse Issue
« Reply #4 on: Apr 19th, 2009, 1:51pm » |
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A scan may be useful to see if there are any fault codes.
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gdwalker
Newbie
I love YaBB 1G - SP1!
Posts: 32
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Re: 2.9L Cosworth Auto Box Reverse Issue
« Reply #5 on: Apr 19th, 2009, 3:46pm » |
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I have contacted the countries biggest Autobox rebuilder, used by all the local garages in this area (E.J. Rose in Mansfield) and plan to take the vehicle there for a scan of the codes.
My personal feeling is that a valve or solenoid is snotted up (or maybe i'm clutching at straws) and have made a proviso to trade my old Scorp in for a very recently refurbed complete gearbox and for mechanic to fit whilst doing a full service and timing chain replacement.
If its all done at the same time, the car will be good for some years to come...
Here's hoping...
Regards,
GDWalker
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gdwalker
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Re: 2.9L Cosworth Auto Box Reverse Issue
« Reply #6 on: Apr 22nd, 2009, 7:15pm » |
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Spoke to the specialist - he's supremely confident the gearbox is fine, but the gasket in the sump pump solenoid has gone....new one comes tomorrow from Ford, fitting Saturday and hoping for the best of outcomes, big difference in fix cost - £4.84 as opposed to £1300 for recon gearbox...
Fingers crossed...........
Regards,
GDWalker
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Highlander
Moderator
Expert
13 Scorpios, XR4x4, Suzuki SJ413 for off road :)
Posts: 8244
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Re: 2.9L Cosworth Auto Box Reverse Issue
« Reply #7 on: Apr 22nd, 2009, 7:18pm » |
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Sounds promising
Might be worth an oil and filter change while you're in there?
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on Oct 17th, 2011, 12:35pm, Simmo wrote:| I give up ! Too much for an old boy! |
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gdwalker
Newbie
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Re: 2.9L Cosworth Auto Box Reverse Issue
« Reply #8 on: Apr 29th, 2009, 10:48pm » |
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 Bah Humbug - and it's not even Christmas..
Changed the solenoid gasket, replaced 3.5L of Dexron, some improvement, in as much as REVERSE will now engage but in its own good time and about 3000 RPM and with a large thump.
Once in reverse, the engine labours to the point of almost stall and if i try to reverse up an incline, she does stall
I'm of the opinion that the solenoids and valves are pretty much naff and therefore since I have the chance of a recently reconditions box (6 months ago), I'm of the opinion to have the box swapped.
Thoughts please ??
Also, I know the box is a A4LDE, but does anyone know the Ford part number for a (98 (R) vehicle and approx how long the box takes to change, (no reason for the latter point but my mechanic spanners on rallies and I like to set him a challenge, the last time he changed my Scorp manual box it took him less than 10 mins!) - so glad I pay him by the minute..
Regards,
GDWalker
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Highlander
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13 Scorpios, XR4x4, Suzuki SJ413 for off road :)
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Re: 2.9L Cosworth Auto Box Reverse Issue
« Reply #9 on: Apr 29th, 2009, 10:52pm » |
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10 minutes??
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on Oct 17th, 2011, 12:35pm, Simmo wrote:| I give up ! Too much for an old boy! |
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wojtekor
Guest
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Re: 2.9L Cosworth Auto Box Reverse Issue
« Reply #10 on: Apr 29th, 2009, 11:30pm » |
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10min?
!impossible!!! 100 minutes maybe 200 minutes more possible... just lifting the engine for a high qualified specialist is about 45min...
in 10 min he could only change the gear stick/lever 
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mick_66
Full Member
Posts: 174
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Re: 2.9L Cosworth Auto Box Reverse Issue
« Reply #12 on: Apr 30th, 2009, 7:44am » |
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 I could do with one of them for wojtekor!!!!
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scorpio_man
Administrator
Ford Kuga awd
Posts: 5654
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Re: 2.9L Cosworth Auto Box Reverse Issue
« Reply #13 on: Apr 30th, 2009, 8:37am » |
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martin_rowe
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Re: 2.9L Cosworth Auto Box Reverse Issue
« Reply #14 on: Apr 30th, 2009, 8:39am » |
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highlander strikes again, very optomistic. realistic allow 4 to 8 hours, a lot to come off & a lot to break & sort out. lets face it you could spend hours just on the front pipes alone.
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Rally Drivers Do It Sideways
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Highlander
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13 Scorpios, XR4x4, Suzuki SJ413 for off road :)
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Re: 2.9L Cosworth Auto Box Reverse Issue
« Reply #15 on: May 1st, 2009, 8:37am » |
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on Apr 29th, 2009, 10:48pm, gdwalker wrote:the last time he changed my Scorp manual box it took him less than 10 mins!) - so glad I pay him by the minute..
Regards,
GDWalker |
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I wasnt suggesting it could be done in 10 mins Mr Rowe, i was questioning the claim in the previous post 
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on Oct 17th, 2011, 12:35pm, Simmo wrote:| I give up ! Too much for an old boy! |
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scorpio_man
Administrator
Ford Kuga awd
Posts: 5654
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Re: 2.9L Cosworth Auto Box Reverse Issue
« Reply #16 on: May 1st, 2009, 8:57am » |
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hi there
i've seen them do on a ford focus rally car. there was 2 or 3 of them and it did take 10 or 12 minutes.
the gearbox itself was tiny! about the size of a boot box.
was great to watch.
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martin_rowe
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I love YaBB 1G - SP1!
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Re: 2.9L Cosworth Auto Box Reverse Issue
« Reply #17 on: May 2nd, 2009, 11:38am » |
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used to do astra / cavalier clutches in 20 mins, but they have changed the design now, thats progress. any more claims like that Andrew & I will be offering you a job. seen you are going to Harewood, i could trailer up a scorpio so I can test you ?.
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Rally Drivers Do It Sideways
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Highlander
Moderator
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13 Scorpios, XR4x4, Suzuki SJ413 for off road :)
Posts: 8244
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Re: 2.9L Cosworth Auto Box Reverse Issue
« Reply #18 on: May 2nd, 2009, 12:02pm » |
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on May 1st, 2009, 8:37am, Highlander wrote:
I wasnt suggesting it could be done in 10 mins Mr Rowe, i was questioning the claim in the previous post
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Are you reading these posts Martin?? the 10 minute gearbox change was done my Mr Walkers Mechanic, not me
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on Oct 17th, 2011, 12:35pm, Simmo wrote:| I give up ! Too much for an old boy! |
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martin_rowe
Full Member
I love YaBB 1G - SP1!
Posts: 879
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Re: 2.9L Cosworth Auto Box Reverse Issue
« Reply #19 on: May 5th, 2009, 8:45am » |
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got you worried though.
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Rally Drivers Do It Sideways
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