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Can no longer move the Auto Shift knob on R32 GSTS

Strexx
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Strexx Enthusiast

Strexx

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So I just bought the car as a project - Have driven it successfully a couple of times but now I cannot move the auto shift stick out of Park - Foot on the brake turn the steering wheel and still no go. Quick Google search would imply the issue is electrical - Could I assume a connection/plug is faulty or I may have popped a fuse? Can you give me any advice how I may got the car to drive again or identify where the fault may be?

GTSBoy Grand Master

GTSBoy

Posted
Posted

Download the R32 GTR service manual and look for the GTS4 auto wiring in the wiring diagrams (will be the same as what you have). Look for the shift interlock and start tracking it down from there.

There is a manual release on these things, I think. Don't remember where it is though.

Time and excuse enough for a manual conversion if you ask me!

Strexx Enthusiast

Strexx

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It seems that none of the fuses have popped... A bit more digging around and it seems that there are two contact closure switches atop of the brake pedal, one for brake light the other for the shift lock.. However when I got under to take a look - I found the Shift Lock Release Button hidden out of sight on the lower back of the shift knob. So now at least I can drive the car - I'll get a torch under the dash tomorrow. Thanks

gem_ute Newbie

gem_ute

Posted
Posted

Had a similar issue on my 34. There is small black plastic clip in things that the plunger of the switch contacts with that break fall out. (There are a number of posts about brake lights staying on - same issue) I had both fail within a week and i just put 2x 1/4 inch zenith bolts in as the head thickness of the bolt just happened to be the same as the plastic thing.

Might not be the same issue but worth a look. 

  • 1 month later...
Strexx Enthusiast

Strexx

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Still have this problem - But I have found out more info.  So to recap, the shift lock was not allowing me to move the Tbar - this was very frustrating as I had to use the unlock button every time.  Then I left the car for about two weeks whilst I replaced the steering rack and when I lowered it down to the ground the TBar worked - In fact it worked for about 3 days then it locked again....It remained locked but today I jumped in the car and it remained unlocked all day - been pushing it back and forth and it will not fault.  I did jump under the dash and took a look and fiddled with the switch above the brake pedal (Mind you my brake light are fine) and found nothing.. So the fault remains intermittent - Can anybody tell me what it possibly could be that is causing this issue. Doing my head in!

  • 3 weeks later...
Strexx Enthusiast

Strexx

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Update - Replaced the switch on the brake pedal and the t-bar remained unlocked - I could hear a clicking sound at t-bar but that sound has since gone and the T-Bar remains locked up again - This is doing my head in - any ideas?

Strexx Enthusiast

Strexx

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I know I've posted this before but I'm struggling to get a solution - I have an intermittent fault whereby the T-Bar shift remains locked and the only way to allow me to place it in a gear is to use the front manually shift lock button.  Sometimes it works fine and sometimes it doesn't.  I've replaced the switch atop of the brake pedal and thought that that fixed it but it did not. After replacing that switch I remember hearing a click on the solenoid at the T-Bar but that has since stopped and the T-Bar remains locked continuously.

I've checked the fuses and nothing has blown.

Today I opened it all up and did not find the solenoid stuck (See photo (with hook)) so I simply unscrewed it from the mechanism and taped it aside. Now it never locks - it can't. So I made the assumption that this particular solenoid must be broken and I should go buy a replacement. I'll try to buy both solenoid (3470 Select lock - Shift lock) & switch (34980 Switch Assembly - Park Position) - This seemed the most appropriate way forward. However, whilst search through E-Bay tonight I came across a Shift Lock (2854001U02) and I'm trying to understand where this fits in and the likely hood that this item may also be part of the problem. Where is it located?

So although the issue is resolved it not a true fix - and that's what I'm aiming to achieve.

Any ideas would be appreciated.

20191125_094742.thumb.jpg.e3548abfb26c0c4d0e86a3760355c045.jpg1603916885_DSC_7343Medium_zpstbendzff.jpg.24000fb86178c4a0d2d3849beeb2f0b2.jpg

GTSBoy Grand Master

GTSBoy

Posted
Posted (edited)

The shift lock is the control box and beeper. It sits above your left knee/shin.

As soon as you f**k off the auto trans and convert to manual you can unplug it, like I did.

Have you considered spraying the inside of the solenoid with some brake-kleen or similar solvent, followed by some silicone or teflon spray lube?

Edited by GTSBoy

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