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The mkiv Supra Owners Club

Auto gearbox problem


KamaSupra

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Hey wondering if anybody could please help or have any ideas for my auto box problem. Basically car runs fine when "D" is selected, but when I put it into manual and try to select "L" it's a real struggle to move the gear stick into "L". I have to really pull hard to select "L", feels like something is blocking that gear and when it does go into "L" it cracks in. I've tried going through all the gears up and down through L, 2, D, N, R, and P several times to try and free it up. But it always seems to not like going into "L" only, but when it does get into "L" it drives ok till I move up the gears and try re-selecting "L" again.

 

Any ideas would be appreciated, thanks.

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I take it you are pushing in the button when trying to select L? just checking the simple things as thats the limit of my knowledge.

 

Tried having it just in manual and going through the gears into "L", then tried while in manual pushing main large button in when trying to select "L". Whichever way I do it, it doesn't like "L" :(

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Ive actually never had to adjust one on a supra, I will try and have a look and take some pics to explain it, could be something a bit bent, normally park would play up too as if the linkage is short ie not pushing/pulling enough to get into L then at the other end it should in theory have trouble pulling it out of reverse into park.

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Might be worth visually checking underneath/ around the shift lever in the car, poss aftermarket wiring caught/ fouling shift mechanism?. Or control rod linkage underneath the car between the shifter & Park Neutral Position Switch on the drivers side of the Autobox.

 

See if it is fouling anything underneath the car when shifting in to "L" range, or check for "witness marks" caused by the adjusting nut possibly working loose on the shift controll rod (shift lever end), becoming slightly misaligned.

 

If nothing is obvious mark position of the nut of the shift lever on the shift control rod (shift lever/ rear end of transmission end), disconnect it and see if the shift lever in the car selects "L" range, if ok, it eliminates the shifter, meaning either adjustment of the "shift control rod" is required or an issue with the "Park Neutral Position Switch".

 

Just a thought though.

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Ive actually never had to adjust one on a supra, I will try and have a look and take some pics to explain it, could be something a bit bent, normally park would play up too as if the linkage is short ie not pushing/pulling enough to get into L then at the other end it should in theory have trouble pulling it out of reverse into park.

 

I prob have a complete shifter if you need one, just cover the postage.

 

I understand what your saying there, was mainly "L" I noticed it being a pain. But at times it has been a pain putting into "P" in the past too like you say thinking about it. Yeah that would be a great help if you have a complete shifter :) Is it relatively simple to replace? As I may have trouble doing it as I'm recovering from a dislocated shoulder and can't move arm properly yet and don't have lots of strength as it's still healing :( Either that or to book it in with you at AFR :D Cheers for all your help.

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Might be worth visually checking underneath/ around the shift lever in the car, poss aftermarket wiring caught/ fouling shift mechanism?. Or control rod linkage underneath the car between the shifter & Park Neutral Position Switch on the drivers side of the Autobox.

 

See if it is fouling anything underneath the car when shifting in to "L" range, or check for "witness marks" caused by the adjusting nut possibly working loose on the shift controll rod (shift lever end), becoming slightly misaligned.

 

If nothing is obvious mark position of the nut of the shift lever on the shift control rod (shift lever/ rear end of transmission end), disconnect it and see if the shift lever in the car selects "L" range, if ok, it eliminates the shifter, meaning either adjustment of the "shift control rod" is required or an issue with the "Park Neutral Position Switch".

 

Just a thought though.

 

Just seen your post mate, I'll pm you :)

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I understand what your saying there, was mainly "L" I noticed it being a pain. But at times it has been a pain putting into "P" in the past too like you say thinking about it. Yeah that would be a great help if you have a complete shifter :) Is it relatively simple to replace? As I may have trouble doing it as I'm recovering from a dislocated shoulder and can't move arm properly yet and don't have lots of strength as it's still healing :( Either that or to book it in with you at AFR :D Cheers for all your help.

 

Its prob something very simple, especially if you have access to a ramp, I doubt you will need a shifter but if so we have a couple im sure.

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Its prob something very simple, especially if you have access to a ramp, I doubt you will need a shifter but if so we have a couple im sure.

 

Cool nice one Dude, cheers for your advice and offer for the shifter. Jon / GreaseMonkey is going to come and have a look maybe this Saturday, if I need a shifter I'll be in touch. Thanks again :)

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Big thanks to Jon / GreaseMonkey for coming up and sorting out my gearbox problem earlier. Simple problem in the end, there was a bit of broken plastic inside which had come away. And everytime I selected "L" and "P" it would catch on the shifter stopping it from going into gear :rolleyes: So cheers for sorting it Jon and my 10sec repair on my bonnet too :) Sure you've your more detailed way of telling everyone how you repaired the gearbox ;)

 

P.S- Thanks for taking me out in the Starlet, that thing is cool :cool:

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Big thanks to Jon / GreaseMonkey for coming up and sorting out my gearbox problem earlier. Simple problem in the end, there was a bit of broken plastic inside which had come away. And everytime I selected "L" and "P" it would catch on the shifter stopping it from going into gear :rolleyes: So cheers for sorting it Jon and my 10sec repair on my bonnet too :) Sure you've your more detailed way of telling everyone how you repaired the gearbox ;)

 

P.S- Thanks for taking me out in the Starlet, that thing is cool :cool:

 

Glad I could help you Dave, and that it was an easy/simple repair. ;)

 

As Dave described above , it was just a thin strip/bit of plastic under the PRND2L Cover (on the drivers side of the shifter), that guides the sliding dust cover for the gear shift, had been bent/ snapped and was fouling a catch on the shifter, removed the offending item, Smooth gearshift operation resumed, and one happy Dave lol!:D

 

Glad you enjoyed the Starlet, no problem mate. lol! :cool:

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