Ford Scorpio Forum
        (https://www.fordscorpio.co.uk/cgi-bin/yabb/YaBB.pl)
      

        General >> Problems >> Worrying Autobox problem
        
(Message started by: and11 on Mar 20th, 2009, 1:20pm)
Title: Worrying Autobox problem
Post by and11 on Mar 20th, 2009, 1:20pm
My auto sometimes goes into neutral when i stop. i stopped at traffic lights on a hill and kept foot on brake while leaving it in drive, when i took foot of brake to rev it started rolling back before suddenly thumping into gear and shooting forward. It happened ever so slightly a few days ago but this morning it happened several times. Can anyone give me advice? regards Andy.
Title: Re: Worrying Autobox problem
Post by Highlander on Mar 20th, 2009, 2:07pm
Just losing drive? You dont have to reselect D again do you?

Have you checked the oil level?

Cleaned the MAF? http://www.fordscorpio.co.uk/cleanmaf.htm
Title: Re: Worrying Autobox problem
Post by and11 on Mar 20th, 2009, 2:44pm

on 03/20/09 at 14:07:13, Highlander wrote:
Just losing drive? You dont have to reselect D again do you?

Have you checked the oil level?

Cleaned the MAF? http://www.fordscorpio.co.uk/cleanmaf.htm

Oil is fine, seems to be drive and reverse, is there a sensor?
Title: Re: Worrying Autobox problem
Post by Highlander on Mar 20th, 2009, 4:06pm
It loses drive in both Drive and Reverse?

Did you check the oil using the correct method?

http://www.fordscorpio.co.uk/autogearbox.htm

Have you cleaned the MAF?

Are you having to reselect D again after it does it?

It does sound like oil starvation though, maybe an oil and filter change would help if the level is ok.

Of course it may just be the box is on the way out, they're all getting a bit long in the tooth now ;)
Title: Re: Worrying Autobox problem
Post by scorpio_man on Mar 20th, 2009, 4:55pm
hi there

might be also the band(s) on the way out. was there any bits in the fluid when you checked?

hth
Title: Re: Worrying Autobox problem
Post by and11 on Mar 20th, 2009, 6:25pm
Update, its just slipping in and out of gear,does it in reverse too. the oil is fine, its a 1996 on 72000m. I thought autoboxes from 90's on could do at least double that. The oil is ok and clear. i mentioned the prob last week on the advice forum, it was under ' right hand heater blowing cold ' . The gears seemed similar to a clutch slip to start with at around 30mph the reved would sharply increase before change completed. I tried the maf clean and noticed a perfect change for a while until it came back worse. The wire that is on longest connectors in maff is still slightly brown and will not shine up but even so i disconnected the sensor and the gear problem remained. Andy.
Title: Re: Worrying Autobox problem
Post by scorpio_man on Mar 20th, 2009, 6:57pm
hi there

best to get a scan done.

could be a few things, 'box done, faulty MAF, etc.

hth
Title: Re: Worrying Autobox problem
Post by and11 on Mar 20th, 2009, 10:35pm

on 03/20/09 at 16:55:40, scorpio_man wrote:
hi there

might be also the band(s) on the way out. was there any bits in the fluid when you checked?

hth

HI, the oil is clear, pinkish
Title: Re: Worrying Autobox problem
Post by and11 on Mar 20th, 2009, 10:58pm

on 03/20/09 at 18:57:03, scorpio_man wrote:
hi there

best to get a scan done.

could be a few things, 'box done, faulty MAF, etc.

hth

Hi, i think maf is faulty, but i read on forum somewhere to disconnect it and go for drive, if other sensors ok the ' get home ' thing wont kick in, which it didn't. The point was if the gears changed properly then it is the maf but gears were still going into neutral. Anyways i'm hearing these cars are known for a catalogue of electrical probs? :'(
Title: Re: Worrying Autobox problem
Post by and11 on Mar 21st, 2009, 12:06am
Wondering if this applys to scorpios,

I'd change the Transmission Range Sensor (TRS), also known as the Manual Lever Position Sensor (MLPS), and also known as the Neutral Safety Switch (NSS.) They are known to fail and cause the exact symptoms you are seeing.
 
 I found this on a usa site, think it was chryslers they were on about?
Title: Re: Worrying Autobox problem
Post by Tompion on Mar 21st, 2009, 12:23am
If it's any help, data for the TRS here:
http://www.fordscorpio.co.uk/trsdata.htm

replacing here:
http://www.fordscorpio.co.uk/manual/autotrans/TransRangSens.pdf
Title: Re: Worrying Autobox problem
Post by twinturbo on Mar 21st, 2009, 7:44am
I have a complete spare A4LDE £50, if your anywhere near cumbria.

TT
Title: Re: Worrying Autobox problem
Post by and11 on Mar 21st, 2009, 1:09pm

on 03/21/09 at 07:44:13, twinturbo wrote:
I have a complete spare A4LDE £50, if your anywhere near cumbria.

TT

I'm in leeds, will go for that if i can find a fitter, but will have to find out if i need it for sure i will let you know asap, thanks
Title: Re: Worrying Autobox problem
Post by Highlander on Mar 21st, 2009, 3:43pm
You say its jumping in and out of gear and going in to neutral

Are you having to reselect the gear to get it to move again??
Title: Re: Worrying Autobox problem
Post by and11 on Mar 22nd, 2009, 2:12am

on 03/21/09 at 15:43:37, Highlander wrote:
You say its jumping in and out of gear and going in to neutral

Are you having to reselect the gear to get it to move again??

Perhaps jumping wrong word, i stop at lights, when i take take foot off brake to go it rolls back as if in neutral so i pull hand brake, if i rev too much it will thump into gear and shoot forward, sometimes it will just move slowly like a clutch slipping on manual. Really bad now just slips in and out of gear, seems ok over 40mph but change up is always abnormal sharp rise in revs before complete change. I also tried a drive without maf connected but still same. It's same prob in reverse, 1 and 2, sport and o/v off
Title: Re: Worrying Autobox problem
Post by and11 on Mar 22nd, 2009, 2:42am

on 03/21/09 at 15:43:37, Highlander wrote:
You say its jumping in and out of gear and going in to neutral

Are you having to reselect the gear to get it to move again??

No, i tried to move through gears with stick but no differ, it does as it wants
Title: Re: Worrying Autobox problem
Post by Snoopy on Mar 22nd, 2009, 7:42am
You definitely need to get the fault codes read. It could be ony one of a number of faults or several .. from wiring to something as simple as the vss not working correctly .. just trying to guess at it will not help The box itself my also be faulty.. i.e. worn brake bands or a faulty torque converter... most garages these days can read codes as well some of the members on here. BUT without the fault codes you are in the guessing game and THAT can work out very expensive.
Title: Re: Worrying Autobox problem
Post by and11 on Mar 22nd, 2009, 12:21pm

on 03/22/09 at 07:42:54, Snoopy wrote:
You definitely need to get the fault codes read. It could be ony one of a number of faults or several .. from wiring to something as simple as the vss not working correctly .. just trying to guess at it will not help The box itself my also be faulty.. i.e. worn brake bands or a faulty torque converter... most garages these days can read codes as well some of the members on here. BUT without the fault codes you are in the guessing game and THAT can work out very expensive.

Thanks very much for advice, i will contact local garage tomorrow, Andy.
Title: Re: Worrying Autobox problem
Post by Dave2302 on Mar 22nd, 2009, 4:57pm
I doubt this is electrical. ;)  If you can find a real good auto box man a valve chest change may cure it if they are prepared to try it. (the pressure reg valves suffer on these boxes).  However it could just be a wear issue causing low pressure in the trans.  Maybe replacement / rebuild time. Ive seen loads of them knacked at less miles than yours these particular boxes dont do loadsa miles when compared to say a ZF transmission.
HTH regards Dave (autobox specialist)
Title: Re: Worrying Autobox problem
Post by and11 on Mar 23rd, 2009, 5:41pm
Yeah, well i got a diagnostic test booked on wednesday, i topped up with oil as the dipstick appeard low and when i move gearstick to one it always pops back into gear, but when stopped in 1 it wont move but if i move stick back and forward, to drive back down 2 and 1 it goes into gear again
Title: Re: Worrying Autobox problem
Post by and11 on Mar 25th, 2009, 2:55pm
UPDATE > Kwik Fit computer is not compatible with my Scorpio, they say only ford will do it. Anyway, turns out the the leaking pipe under radiator is not power steering fluid as i was told, but it is autobox oil, so she been low on oil, i put a liter in and the gears were much better but not perfect. Can anyone tell me how much the autobox holds? 1996 2.3
Title: Re: Worrying Autobox problem
Post by Jonnycab on Mar 25th, 2009, 3:30pm
The transmission holds 10.3 litres  :)......http://www.fordscorpio.co.uk/manual/autotrans/A4LDESpecs.pdf
Title: Re: Worrying Autobox problem
Post by scorpio_man on Mar 25th, 2009, 3:36pm

on 03/25/09 at 15:30:09, Jonnycab wrote:
The transmission holds 10.3 litres  :)......http://www.fordscorpio.co.uk/manual/autotrans/A4LDESpecs.pdf


hi there

that's for a fully empty system. more like 5 litres+ if it's not emptied the system, which i wouldn't think it has as it still goes. just add a litre at a time and check it carefully using the correct procedure.

hth
Title: Re: Worrying Autobox problem
Post by and11 on Mar 25th, 2009, 3:49pm
Expensive stuff to be leaking, £10 a liter from halfords. The metal pipes below the radiator appear to have had a few inches cut out and replaced with rubber ones with circlips at each end, i'm thinking i could replace these but not sure what size to use, if anyone can direct me to this info it would be appreciated. Andy.
Title: Re: Worrying Autobox problem
Post by and11 on Mar 25th, 2009, 11:17pm

on 03/25/09 at 15:49:18, and11 wrote:
Expensive stuff to be leaking, £10 a liter from halfords. The metal pipes below the radiator appear to have had a few inches cut out and replaced with rubber ones with circlips at each end, i'm thinking i could replace these but not sure what size to use, if anyone can direct me to this info it would be appreciated. Andy.

But saying that,,, box probs had it ???
Title: Re: Worrying Autobox problem
Post by tonker on Mar 26th, 2009, 3:25am
Hi Andy. I think i know what your on about. My 2.9i done the same sort of thing at a roundabout waiting for the lights to change, they did i tried to move off and nothing excect high revs >:( and a bit of a burning smell from the clutch as i revved it like a complete loony. :-[
All i did was take my foot off the accelorator and limped off the lights, went home and tested the oil level in the gearbox as it was warm i could get a better reading. it was low. Touch wood it has never happened since.  ::)
Title: Re: Worrying Autobox problem
Post by and11 on Mar 26th, 2009, 10:10pm

on 03/21/09 at 15:43:37, Highlander wrote:
You say its jumping in and out of gear and going in to neutral

Are you having to reselect the gear to get it to move again??

Actually it does find gear when selection 1 or 2 if nothing happens in D. 90% sure its oil though as top up showed a marked improvement, hope all is well when i get leak fixed but feel it could be a combination of poor maf sensor too.
Title: Re: Worrying Autobox problem
Post by and11 on Apr 6th, 2009, 5:21pm

on 03/26/09 at 22:10:31, and11 wrote:
Actually it does find gear when selection 1 or 2 if nothing happens in D. 90% sure its oil though as top up showed a marked improvement, hope all is well when i get leak fixed but feel it could be a combination of poor maf sensor too.

Leaks fixed and oil and correct oil level now, when i select drive it takes 3 seconds to engage but if i select 1 or 2 it will engage right away usually with a slight thump in 2 though. When i pull away i just put it back into D but the original problem is still their when it changes in 3rd, revs go too high and you sometimes get a clutch slip type feeling like in a manual so looks like a trip to ford dealers for codes. Reverse selects fine


Ford Scorpio Forum » Powered by YaBB 1 Gold - SP 1.3.1!
YaBB © 2000-2003. All Rights Reserved.