convertor lockup?
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Instructor
Joined: Sep 2003
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convertor lockup?
Time for another dumb one(but I'm probably not alone on this one, I hope) How do I know if my convertor is lockedup or not? What is the 'feeling'(?) or what are the 'signs' that it is engaged? This is basic I'm sure but hey this is how you learn. Thanx
Team Owner
Joined: Dec 2000
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From: SE NY
Cruise-In II Veteran
Re: convertor lockup? (SJLJ)
While rolling along at around 20-30mph pop the accelerator and notice the tach movement vs the speed; the TCC should not be locked and so the tach will jump before the speed can move much.
Then go up to say 60mph or so and again pop the accelerator; the TCC should be locked and so the tach should not jump but rather move up in unison with the speedo.
Then go up to say 60mph or so and again pop the accelerator; the TCC should be locked and so the tach should not jump but rather move up in unison with the speedo.
Intermediate
Joined: Nov 2003
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Re: convertor lockup? (SJLJ)
Sam, here's how I check it on my '94,LT1,A(all stock): cruseing while in 4th OD, and holding throttle steady, with ya left foot apply slight pressure to the brake (only takes 'bout 1" of pedal travel) the 'lock-out should disengage i.e. ya feel and note an increase in RPM. It's alway disengaged at WOT. When its "locked" as when in OD, there is no slippage hince 'super MPH'.
Hope this helps. Edit:should read 'super MPG'
[Modified by abtanner, 12:39 AM 12/17/2003]
Hope this helps. Edit:should read 'super MPG'
[Modified by abtanner, 12:39 AM 12/17/2003]
Thread Starter
Instructor
Joined: Sep 2003
Posts: 120
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Re: convertor lockup? (1990CORVETTE)
Thanks for the replys. This place(forum) always comes thru and doesn't make you feel like an idiot. (and it's nice to know I wasn't the only one wondering) Have a corvette kinda day!
Race Director
Joined: Oct 2000
Posts: 16,477
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From: Enter Post Count Here
Re: convertor lockup? (abtanner)
Sam, here's how I check it on my '94,LT1,A(all stock): cruseing while in 4th OD, and holding throttle steady, with ya left foot apply slight pressure to the brake (only takes 'bout 1" of pedal travel) the 'lock-out should disengage i.e. ya feel and note an increase in RPM. It's alway disengaged at WOT. When its "locked" as when in OD, there is no slippage hince 'super MPH'.
Hope this helps. Edit:should read 'super MPG'
Hope this helps. Edit:should read 'super MPG'
:seeya
