help please...trans problem

Green7mgte · 03-16-2010, 08:29 PM

to loose yes. to tight, not really. the tighter it is the harder your trans will "kick it" into gear. <- i can do puns too! the kickdown cable should be located next to the throttle linkage. IIRC ill dig for a diagram later.
I found this thread too.
http://www.automotiveforums.com/vbulletin/t280785.html
talks about acouple tranny issues.

MA70-3.0GT · 03-19-2010, 08:27 PM

I'd have to disagree with that statement, the kd cable can be to tight & has nothing to do with how hard it slams into gear. All it does is drop back a gear when you "kick down" the throttle and as such needs to be set so it operates at the last bit of pedal travel, or youll be running in 2nd everywhere drinking fuel and killing the motor. To be honest though i think the fault is more likely a sticking valve internally and this usually means a rebuild. You could try adjusting the actual cable/link from the shifter but i'd get a specialist to do that even since doing it wrong can mean the car can slip into gear unexpectedly or even be started in reverse. If the specialist says it is internal you could try changing the fluid before spending out (assuming the level is correct now, make 100% with a hot check first of all before jnything else)

2genfun · 03-22-2010, 02:58 AM

fixed it...throttle position sensor was stuck...

cre · 03-23-2010, 01:36 AM

Gotta love the simple fixes...

You know, had ya checked that would have shown a code 51 and told you the source of the problem right away.

<---- Just a reminder for everyone here... even me.

MA70-3.0GT · 03-24-2010, 07:46 AM

Ahaha, just gotta laugh. Definitely a worthwhile reminder that the cel/eml is there for a reason. Tbh i'm surprised it caused those symptoms, would have expected a lot of stalling and low idle but then by stuck do you mean a permanent idl signal? Thats not too common and not sure it would even throw a code, either way glad its fixed and cheaply!

cre · 03-25-2010, 12:53 AM

Quote:

Originally Posted by MA70-3.0GT

Ahaha, just gotta laugh. Definitely a worthwhile reminder that the cel/eml is there for a reason. Tbh i'm surprised it caused those symptoms, would have expected a lot of stalling and low idle but then by stuck do you mean a permanent idl signal? Thats not too common and not sure it would even throw a code, either way glad its fixed and cheaply!

No, the tabs would have to be broken for the TPS not to move when the throttle does. What happens is that the TPS gets gummed up to the point that you press the throttle and after you let off the TPS is stuck indicating a higher throttle level than actual and there is no IDL signature. You will at least get a code 51 in this case.

2genfun · 03-25-2010, 01:06 AM

now that thats fixed try helping my other problem...refer to the new thread on dead spot in throttle plz and thank you

03-16-2010, 08:29 PM	#1
Green7mgte Supra Forum Moderator Join Date: Nov 2009 Location: Green-Ohio Posts: 1,297	to loose yes. to tight, not really. the tighter it is the harder your trans will "kick it" into gear. <- i can do puns too! the kickdown cable should be located next to the throttle linkage. IIRC ill dig for a diagram later. I found this thread too. http://www.automotiveforums.com/vbulletin/t280785.html talks about acouple tranny issues. __________________ 92 Ma71 7mGTE Auto. SafcII Supra FAQ Supra MKIII FAQ Classified Section guidelines :

03-19-2010, 08:27 PM	#2
MA70-3.0GT 12psi boost Join Date: Oct 2009 Location: Crewe, England Posts: 356	I'd have to disagree with that statement, the kd cable can be to tight & has nothing to do with how hard it slams into gear. All it does is drop back a gear when you "kick down" the throttle and as such needs to be set so it operates at the last bit of pedal travel, or youll be running in 2nd everywhere drinking fuel and killing the motor. To be honest though i think the fault is more likely a sticking valve internally and this usually means a rebuild. You could try adjusting the actual cable/link from the shifter but i'd get a specialist to do that even since doing it wrong can mean the car can slip into gear unexpectedly or even be started in reverse. If the specialist says it is internal you could try changing the fluid before spending out (assuming the level is correct now, make 100% with a hot check first of all before jnything else) __________________ '89 MA70 Supra GT aero 3.0turbo JDM, Rebuilt motor, K&N intake, 3" stainless turbo-back. New turbo and braided line kit... '89 Honda NC27 400, NC23 cams, open pipe, PC36a shock & possibly Showa USD forks... '83 Yamaha 29R XJ750E-II, number 69 off the line, only runner in the country? Original except Koni shocks '95 Honda PC26 CB500R, Winter hack, hateful, trying to sell it I'm not paranoid, they really ARE after me!!!

03-22-2010, 02:58 AM	#3
2genfun 3" Exhaust Join Date: Feb 2010 Location: Orlando, FL Posts: 65	fixed it...throttle position sensor was stuck... __________________ 88 targa. H&R springs, koni adustable shocks, 18" wheels, d&s rotors, goodrich brake lines, 7mgte in progress...

03-23-2010, 01:36 AM	#4
cre Toyota Racing Development Join Date: Apr 2007 Posts: 5,038	Gotta love the simple fixes... You know, had ya checked that would have shown a code 51 and told you the source of the problem right away. <---- Just a reminder for everyone here... even me. __________________ If something breaks or you need to contact a member of the administration please post HERE. Unless it's a private or administration matter please post it on the forum. It benefits no one else if car related questions aren't posted for future users and takes away from the time I'm able to spend helping on the rest of the forum. If you're so inclined I'm always more than happy to accept tips via PayPal. Tip Jar --->

03-24-2010, 07:46 AM	#5
MA70-3.0GT 12psi boost Join Date: Oct 2009 Location: Crewe, England Posts: 356	Ahaha, just gotta laugh. Definitely a worthwhile reminder that the cel/eml is there for a reason. Tbh i'm surprised it caused those symptoms, would have expected a lot of stalling and low idle but then by stuck do you mean a permanent idl signal? Thats not too common and not sure it would even throw a code, either way glad its fixed and cheaply! __________________ '89 MA70 Supra GT aero 3.0turbo JDM, Rebuilt motor, K&N intake, 3" stainless turbo-back. New turbo and braided line kit... '89 Honda NC27 400, NC23 cams, open pipe, PC36a shock & possibly Showa USD forks... '83 Yamaha 29R XJ750E-II, number 69 off the line, only runner in the country? Original except Koni shocks '95 Honda PC26 CB500R, Winter hack, hateful, trying to sell it I'm not paranoid, they really ARE after me!!!

03-25-2010, 01:06 AM	#7
2genfun 3" Exhaust Join Date: Feb 2010 Location: Orlando, FL Posts: 65	now that thats fixed try helping my other problem...refer to the new thread on dead spot in throttle plz and thank you __________________ 88 targa. H&R springs, koni adustable shocks, 18" wheels, d&s rotors, goodrich brake lines, 7mgte in progress...

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