'96 Discovery won't shift out of park

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D

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Guest
The members of this forum have been very helpful in the past. Maybe you
can help with this one. My '96 Disco won't shift out of park. The
sunroof was leaking slightly and some water dripped into the shift
linkage. The shifter was somewhat stiff, but still shifted. Last
weekend, it shifted into park and then that was it.

I have checked the archives about the brake switches.

I see that there are two switches on the brake pedal. I have removed
and tested the combinition electric/vacuum switch. It seems to be
working OK. Switch open/closes and vacuum open/closes, although there
is no vacuum on the line coming down from the dash. The vacuum line
does not seem to be attached on the other side of the firewall. Does
anyone know where this goes and what it does?

Vehicle is in park. I see there is another switch on the pedal (Brake
lights?) , I have removed the switch and it tests OK, but is somewhat
stiff. There are two circuits both are closed at rest and open when
the plunger is pushed. The switch does seem stiff.

Can anyone tell me the interaction between the two switches & the
vacuum switch on the pedal with the interlock with the shifter. I am
unsure if the shifter has failed in the shifter column (because it was
stiff prior) or one of the interlock switches on the pedal has failed.

Any insight would be appreciated.

Thanks.
..

Thanks.

 

<[email protected]> wrote in message
news:[email protected]...
> The members of this forum have been very helpful in the past. Maybe you
> can help with this one. My '96 Disco won't shift out of park. The
> sunroof was leaking slightly and some water dripped into the shift
> linkage. The shifter was somewhat stiff, but still shifted. Last
> weekend, it shifted into park and then that was it.
>
> I have checked the archives about the brake switches.
>
> I see that there are two switches on the brake pedal. I have removed
> and tested the combinition electric/vacuum switch. It seems to be
> working OK. Switch open/closes and vacuum open/closes, although there
> is no vacuum on the line coming down from the dash. The vacuum line
> does not seem to be attached on the other side of the firewall. Does
> anyone know where this goes and what it does?
>
> Vehicle is in park. I see there is another switch on the pedal (Brake
> lights?) , I have removed the switch and it tests OK, but is somewhat
> stiff. There are two circuits both are closed at rest and open when
> the plunger is pushed. The switch does seem stiff.
>
> Can anyone tell me the interaction between the two switches & the
> vacuum switch on the pedal with the interlock with the shifter. I am
> unsure if the shifter has failed in the shifter column (because it was
> stiff prior) or one of the interlock switches on the pedal has failed.
>
> Any insight would be appreciated.
>
> Thanks.

Hi, do you mean the selector lever won't move, or the transmission itself is
staying in park when you move the selector?
Badger.


 
Badger,

The selector itself won't move. I was getting a click when I pushed in
the knob on the selector, but the selector wouldn't move. That's when
I started checking the brake interlock switches.

After pushiing and pulling on the selector for about an hour, I'm now
no longer getting the click when I push in on the selector knob.

Both switch assemblies on the pedal seem to be functioning. I took
them off and tested them. There is a total of three switches in the two
assemblies on the pedel shaft.

One assembly contains 2 electrical switches. The other contains 1
electrical switch and 1 vacuum switch.

I realize one of these switches is the brake light. That leaves 2
electrical switches and vacuum switch with their function unknown.

FOUR switches open/closing every time the brake pedal is pushed? I'm
surprised it lasted this long.

Any insight into the funtion of the remaining switches, or how they
work with the selector knob is appreciated.

Thanks!

 

<[email protected]> wrote in message
news:[email protected]...
> Badger,
>
> The selector itself won't move. I was getting a click when I pushed in
> the knob on the selector, but the selector wouldn't move. That's when
> I started checking the brake interlock switches.

That would have been my next move also.

> After pushiing and pulling on the selector for about an hour, I'm now
> no longer getting the click when I push in on the selector knob.

Could be you've fecked it???

> Both switch assemblies on the pedal seem to be functioning. I took
> them off and tested them. There is a total of three switches in the two
> assemblies on the pedel shaft.
>
> One assembly contains 2 electrical switches. The other contains 1
> electrical switch and 1 vacuum switch.
>
> I realize one of these switches is the brake light. That leaves 2
> electrical switches and vacuum switch with their function unknown.
>
> FOUR switches open/closing every time the brake pedal is pushed? I'm
> surprised it lasted this long.
>
> Any insight into the funtion of the remaining switches, or how they
> work with the selector knob is appreciated.

One set will be for cruise control inhibit, to cancel cruise if you brake,
one set will be for the brake lights, one possibly for the shift interlock,
god knows about the others!
next move wouild be to remove the trim around the selector to gain access to
the interlock plunger solenoid and try applying 12v across it and see if it
physically operates, if it does, you have 2 choices....
1. remove it completely to do away with the electrical interlock, or
2. trace the wiring and fix it.
Badger.


 

"Badger" <[email protected]> wrote in message
news:[email protected]...
>
> <[email protected]> wrote in message
> news:[email protected]...
>> Badger,
>>
>> The selector itself won't move. I was getting a click when I pushed in
>> the knob on the selector, but the selector wouldn't move. That's when
>> I started checking the brake interlock switches.
>
> That would have been my next move also.
>
>> After pushiing and pulling on the selector for about an hour, I'm now
>> no longer getting the click when I push in on the selector knob.
>
> Could be you've fecked it???
>
>> Both switch assemblies on the pedal seem to be functioning. I took
>> them off and tested them. There is a total of three switches in the two
>> assemblies on the pedel shaft.
>>
>> One assembly contains 2 electrical switches. The other contains 1
>> electrical switch and 1 vacuum switch.
>>
>> I realize one of these switches is the brake light. That leaves 2
>> electrical switches and vacuum switch with their function unknown.
>>
>> FOUR switches open/closing every time the brake pedal is pushed? I'm
>> surprised it lasted this long.
>>
>> Any insight into the funtion of the remaining switches, or how they
>> work with the selector knob is appreciated.
>
> One set will be for cruise control inhibit, to cancel cruise if you brake,
> one set will be for the brake lights, one possibly for the shift
> interlock, god knows about the others!
> next move wouild be to remove the trim around the selector to gain access
> to the interlock plunger solenoid and try applying 12v across it and see
> if it physically operates, if it does, you have 2 choices....
> 1. remove it completely to do away with the electrical interlock, or
> 2. trace the wiring and fix it.
> Badger.
>

According to the parts manual, there are no electrical switches associated
with the gear shift on the auto. The button on the side of the stick lifts a
catch down in the housing below the lever. Maybe more water than you thought
got in and the thing has seized.

Peter.


 

> >> After pushiing and pulling on the selector for about an hour, I'm now
> >> no longer getting the click when I push in on the selector knob.
> >
> > Could be you've fecked it???
> >
Possible. When it was working you could hear a relay-like click when
you pushed in on the selector.


> > One set will be for cruise control inhibit, to cancel cruise if you brake,
> > one set will be for the brake lights, one possibly for the shift
> > interlock, god knows about the others!
> > next move wouild be to remove the trim around the selector to gain access
> > to the interlock plunger solenoid and try applying 12v across it and see
> > if it physically operates, if it does, you have 2 choices....
> > 1. remove it completely to do away with the electrical interlock, or
> > 2. trace the wiring and fix it.
> > Badger.
> >

Any tips on removing the center console panels? I've never had them
apart before. Does the shift selector come apart? Looks like it may
be glued or the screws hidden.

My next step is to try and determine where the vacuum line goes and
re-intall the functioning pedal switches.

After that, opening up the center console and trying to determine any
interlocks that may have failed in there.

The comment from Peter suggests there is no electrical interlock on the
automatic tranny. It sure sounded like a relay click when it was
functioning.

Thanks for your help so far!

-Darin


>
> According to the parts manual, there are no electrical switches associated
> with the gear shift on the auto. The button on the side of the stick lifts a
> catch down in the housing below the lever. Maybe more water than you thought
> got in and the thing has seized.
>
> Peter.

 

"Pete S" <[email protected]> wrote in message
news:[email protected]...
>
> "Badger" <[email protected]> wrote in message
> news:[email protected]...
>>
>> <[email protected]> wrote in message
>> news:[email protected]...
>>> Badger,
>>>
>>> The selector itself won't move. I was getting a click when I pushed in
>>> the knob on the selector, but the selector wouldn't move. That's when
>>> I started checking the brake interlock switches.
>>
>> That would have been my next move also.
>>
>>> After pushiing and pulling on the selector for about an hour, I'm now
>>> no longer getting the click when I push in on the selector knob.
>>
>> Could be you've fecked it???
>>
>>> Both switch assemblies on the pedal seem to be functioning. I took
>>> them off and tested them. There is a total of three switches in the two
>>> assemblies on the pedel shaft.
>>>
>>> One assembly contains 2 electrical switches. The other contains 1
>>> electrical switch and 1 vacuum switch.
>>>
>>> I realize one of these switches is the brake light. That leaves 2
>>> electrical switches and vacuum switch with their function unknown.
>>>
>>> FOUR switches open/closing every time the brake pedal is pushed? I'm
>>> surprised it lasted this long.
>>>
>>> Any insight into the funtion of the remaining switches, or how they
>>> work with the selector knob is appreciated.
>>
>> One set will be for cruise control inhibit, to cancel cruise if you
>> brake, one set will be for the brake lights, one possibly for the shift
>> interlock, god knows about the others!
>> next move wouild be to remove the trim around the selector to gain access
>> to the interlock plunger solenoid and try applying 12v across it and see
>> if it physically operates, if it does, you have 2 choices....
>> 1. remove it completely to do away with the electrical interlock, or
>> 2. trace the wiring and fix it.
>> Badger.
>>
>
> According to the parts manual, there are no electrical switches associated
> with the gear shift on the auto. The button on the side of the stick lifts
> a catch down in the housing below the lever. Maybe more water than you
> thought got in and the thing has seized.

I was assuming (maybe wrongly?) a non-Uk spec vehicle, it is a mandatory
requirement in some countrys that you cannot move the gear selector on an
auto unless your foot is on the brake.
Badger.


 

<[email protected]> wrote in message
news:[email protected]...
>
>
> Any tips on removing the center console panels? I've never had them
> apart before. Does the shift selector come apart? Looks like it may
> be glued or the screws hidden.

Sorry, never dismantled those bots myself, not recently enough to remember
how, anyway!
get hold of a manual and it ought to tell you.

Badger.


 
Vehicle is in the US. I do not have an assembly manual. I was not
sure which one to get. Does anyone have a name/source for the best
one? I see CDs on Ebay, but was always skeptical.

Thanks again.

-Darin

 
In message <[email protected]>
"Pete S" <[email protected]> wrote:

>
> "Badger" <[email protected]> wrote in message
> news:[email protected]...
> >
> > <[email protected]> wrote in message
> > news:[email protected]...
> >> Badger,
> >>
> >> The selector itself won't move. I was getting a click when I pushed in
> >> the knob on the selector, but the selector wouldn't move. That's when
> >> I started checking the brake interlock switches.
> >
> > That would have been my next move also.
> >
> >> After pushiing and pulling on the selector for about an hour, I'm now
> >> no longer getting the click when I push in on the selector knob.
> >
> > Could be you've fecked it???
> >
> >> Both switch assemblies on the pedal seem to be functioning. I took
> >> them off and tested them. There is a total of three switches in the two
> >> assemblies on the pedel shaft.
> >>
> >> One assembly contains 2 electrical switches. The other contains 1
> >> electrical switch and 1 vacuum switch.
> >>
> >> I realize one of these switches is the brake light. That leaves 2
> >> electrical switches and vacuum switch with their function unknown.
> >>
> >> FOUR switches open/closing every time the brake pedal is pushed? I'm
> >> surprised it lasted this long.
> >>
> >> Any insight into the funtion of the remaining switches, or how they
> >> work with the selector knob is appreciated.
> >
> > One set will be for cruise control inhibit, to cancel cruise if you brake,
> > one set will be for the brake lights, one possibly for the shift
> > interlock, god knows about the others!
> > next move wouild be to remove the trim around the selector to gain access
> > to the interlock plunger solenoid and try applying 12v across it and see
> > if it physically operates, if it does, you have 2 choices....
> > 1. remove it completely to do away with the electrical interlock, or
> > 2. trace the wiring and fix it.
> > Badger.
> >
>
> According to the parts manual, there are no electrical switches associated
> with the gear shift on the auto. The button on the side of the stick lifts a
> catch down in the housing below the lever. Maybe more water than you thought
> got in and the thing has seized.
>
> Peter.
>
>

PRC9677 & PRC9859 micro switches for interlock, but perhaps more
significantly from the later comment about the "relay" sounding
noise there is gear change lock solenoid FTC3283.

Richard

--
www.beamends-lrspares.co.uk [email protected]
Running a business in a Microsoft free environment - it can be done
Powered by Risc-OS - you won't get a virus from us!!
Boycott the Yorkshire Dales - No Play, No Pay
 
In message <cffd22cb4d%[email protected]>, beamendsltd
<[email protected]> writes
>In message <[email protected]>
> "Pete S" <[email protected]> wrote:
>
>>
>> "Badger" <[email protected]> wrote in message
>> news:[email protected]...
>> >
>> > <[email protected]> wrote in message
>> > news:[email protected]...
>> >> Badger,
>> >>
>> >> The selector itself won't move. I was getting a click when I pushed in
>> >> the knob on the selector, but the selector wouldn't move. That's when
>> >> I started checking the brake interlock switches.
>> >
>> > That would have been my next move also.
>> >
>> >> After pushiing and pulling on the selector for about an hour, I'm now
>> >> no longer getting the click when I push in on the selector knob.
>> >
>> > Could be you've fecked it???
>> >
>> >> Both switch assemblies on the pedal seem to be functioning. I took
>> >> them off and tested them. There is a total of three switches in the two
>> >> assemblies on the pedel shaft.
>> >>
>> >> One assembly contains 2 electrical switches. The other contains 1
>> >> electrical switch and 1 vacuum switch.
>> >>
>> >> I realize one of these switches is the brake light. That leaves 2
>> >> electrical switches and vacuum switch with their function unknown.
>> >>
>> >> FOUR switches open/closing every time the brake pedal is pushed? I'm
>> >> surprised it lasted this long.
>> >>
>> >> Any insight into the funtion of the remaining switches, or how they
>> >> work with the selector knob is appreciated.
>> >
>> > One set will be for cruise control inhibit, to cancel cruise if you brake,
>> > one set will be for the brake lights, one possibly for the shift
>> > interlock, god knows about the others!
>> > next move wouild be to remove the trim around the selector to gain access
>> > to the interlock plunger solenoid and try applying 12v across it and see
>> > if it physically operates, if it does, you have 2 choices....
>> > 1. remove it completely to do away with the electrical interlock, or
>> > 2. trace the wiring and fix it.
>> > Badger.
>> >
>>
>> According to the parts manual, there are no electrical switches associated
>> with the gear shift on the auto. The button on the side of the stick lifts a
>> catch down in the housing below the lever. Maybe more water than you thought
>> got in and the thing has seized.
>>
>> Peter.
>>
>>
>
>PRC9677 & PRC9859 micro switches for interlock, but perhaps more
>significantly from the later comment about the "relay" sounding
>noise there is gear change lock solenoid FTC3283.
>
>Richard
>
If there is a locking solenoid then there will probably be a mechanical
override - to enable the vehicle to be moved in the event of electrical
failure. There is on all my other (non-LR) automatics.

My 1998 Defender 90 auto doesn't have any lock on it - either that or it
doesn't work!!
--
hugh
Reply to address is valid at the time of posting
 

"hugh" <hugh@[127.0.0.1]> wrote in message
news:[email protected]...
> In message <cffd22cb4d%[email protected]>, beamendsltd
> <[email protected]> writes
>>In message <[email protected]>
>> "Pete S" <[email protected]> wrote:
>>
>>>
>>> "Badger" <[email protected]> wrote in message
>>> news:[email protected]...
>>> >
>>> > <[email protected]> wrote in message
>>> > news:[email protected]...
>>> >> Badger,
>>> >>
>>> >> The selector itself won't move. I was getting a click when I pushed
>>> >> in
>>> >> the knob on the selector, but the selector wouldn't move. That's
>>> >> when
>>> >> I started checking the brake interlock switches.
>>> >
>>> > That would have been my next move also.
>>> >
>>> >> After pushiing and pulling on the selector for about an hour, I'm now
>>> >> no longer getting the click when I push in on the selector knob.
>>> >
>>> > Could be you've fecked it???
>>> >
>>> >> Both switch assemblies on the pedal seem to be functioning. I took
>>> >> them off and tested them. There is a total of three switches in the
>>> >> two
>>> >> assemblies on the pedel shaft.
>>> >>
>>> >> One assembly contains 2 electrical switches. The other contains 1
>>> >> electrical switch and 1 vacuum switch.
>>> >>
>>> >> I realize one of these switches is the brake light. That leaves 2
>>> >> electrical switches and vacuum switch with their function unknown.
>>> >>
>>> >> FOUR switches open/closing every time the brake pedal is pushed? I'm
>>> >> surprised it lasted this long.
>>> >>
>>> >> Any insight into the funtion of the remaining switches, or how they
>>> >> work with the selector knob is appreciated.
>>> >
>>> > One set will be for cruise control inhibit, to cancel cruise if you
>>> > brake,
>>> > one set will be for the brake lights, one possibly for the shift
>>> > interlock, god knows about the others!
>>> > next move wouild be to remove the trim around the selector to gain
>>> > access
>>> > to the interlock plunger solenoid and try applying 12v across it and
>>> > see
>>> > if it physically operates, if it does, you have 2 choices....
>>> > 1. remove it completely to do away with the electrical interlock, or
>>> > 2. trace the wiring and fix it.
>>> > Badger.
>>> >
>>>
>>> According to the parts manual, there are no electrical switches
>>> associated
>>> with the gear shift on the auto. The button on the side of the stick
>>> lifts a
>>> catch down in the housing below the lever. Maybe more water than you
>>> thought
>>> got in and the thing has seized.
>>>
>>> Peter.
>>>
>>>
>>
>>PRC9677 & PRC9859 micro switches for interlock, but perhaps more
>>significantly from the later comment about the "relay" sounding
>>noise there is gear change lock solenoid FTC3283.
>>
>>Richard
>>
> If there is a locking solenoid then there will probably be a mechanical
> override - to enable the vehicle to be moved in the event of electrical
> failure. There is on all my other (non-LR) automatics.
>
> My 1998 Defender 90 auto doesn't have any lock on it - either that or it
> doesn't work!!

Neither does my Disco2, or a friends D1, or the P38 in the workshop -
because they are all UK spec vehicles. My BMW 330 had it, and there was NO
mech. override. As I said, it's only mandatory in certain markets and the UK
isn't one of them, but some manufacturers will make one spec (the higher,
obviously) for all markets.
Badger.
> --
> hugh
> Reply to address is valid at the time of posting


 
The saga continues.

I re-intalled the functioning brake pedal switches and turned my
attention to the shifter itself. After spending a considerable amount
of time removing various levels of trim / center console parts. I was
able to access the shifter mechanism. The shifter mechanism sits
inside an aluminum box that had about 1/2 inch of standing water in it.

I suprised a vehicle with a sunroof would not have some type of drain
mechanism in a critical location. My guess is they were protecting it
from water from below.


>>>PRC9677 & PRC9859 micro switches for interlock, but perhaps more
>>>significantly from the later comment about the "relay" sounding
>>>noise there is gear change lock solenoid FTC3283.

Richard,

You were dead on. Two micro-switches and a gear change lock solenoid.
The solenoid was under water and stuck blocking the selector. I am
drying it out now to see if it will function again.

Initially, when trying to get it to shift out of park I also bent the
hollow selector rod itself and caused the shift selector button to bind
inside the rod.

Can the individual sub-components be ordered, like the shifter tube
itself or should I just replace the entire shifter mechanism.

Richard, any part numbers would be again appreciated.

Thanks all for the help so far.

By pushing the solenoid aside manually, I was at least able to move the
vehicle.

Thanks again.

 
In message <[email protected]>
"[email protected]" <[email protected]> wrote:

> The saga continues.
>
> I re-intalled the functioning brake pedal switches and turned my
> attention to the shifter itself. After spending a considerable amount
> of time removing various levels of trim / center console parts. I was
> able to access the shifter mechanism. The shifter mechanism sits
> inside an aluminum box that had about 1/2 inch of standing water in it.
>
> I suprised a vehicle with a sunroof would not have some type of drain
> mechanism in a critical location. My guess is they were protecting it
> from water from below.
>
>
> >>>PRC9677 & PRC9859 micro switches for interlock, but perhaps more
> >>>significantly from the later comment about the "relay" sounding
> >>>noise there is gear change lock solenoid FTC3283.
>
> Richard,
>
> You were dead on. Two micro-switches and a gear change lock solenoid.
> The solenoid was under water and stuck blocking the selector. I am
> drying it out now to see if it will function again.
>
> Initially, when trying to get it to shift out of park I also bent the
> hollow selector rod itself and caused the shift selector button to bind
> inside the rod.
>
> Can the individual sub-components be ordered, like the shifter tube
> itself or should I just replace the entire shifter mechanism.
>

Unfortunately you've managed to bend about the only bit not avaiable
seperately - so it's FTC3908 I'm affraid - there's a Wabco part, or
Genuine available.

> Richard, any part numbers would be again appreciated.
>
> Thanks all for the help so far.
>
> By pushing the solenoid aside manually, I was at least able to move the
> vehicle.
>
> Thanks again.
>

Richard
--
www.beamends-lrspares.co.uk [email protected]
Running a business in a Microsoft free environment - it can be done
Powered by Risc-OS - you won't get a virus from us!!
Boycott the Yorkshire Dales - No Play, No Pay
 
To close out the post.

The shifter is now working. It was not any of the 3 foot pedal
switches, but the interlock plunger solenoid in the shifter itself.
The sunroof was leaking and flooded the shifter mechanism. The
interlock plunger solenoid was under about 1/2 inch of water. The
interlock is buried inside the shifter console and after removing all
the trim and bezels, etc. I could see it was not moving out of the way
when the brake was applied.

I could have just replaced the interlock plunger solenoid, but I had
bend the shifter itself slightly, and the shifter button itself was
sticking as well.

I replaced the entire shifter mechanism with a replacement from a used
Rover parts supplier. It runs like a champ now.

Thanks again for all the help.

-D

 
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