torque converter locking at the wrong time.
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Joined: Jul 2011
Posts: 232
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From: massachusets
Car: 87 z28 stock
Engine: 305 tpi
Transmission: 700r4
torque converter locking at the wrong time.
for some reason my TC is locking up in low speeds in the wrong gears. if i unplug the 4 pin plug from the trans it wont do this but then im not getting tc lock up when i should. any ideas?
Joined: Apr 2005
Posts: 7,736
Likes: 14
From: Not in Kansas anymore
Car: 82 Z28
Engine: 383 SP EFI/ 4150 TB
Transmission: T400
Axle/Gears: QP 9" 3.73
Re: torque converter locking at the wrong time.
you might have a short on the control wire back to the computer operating the lockup
If the control wire gets grounded the lockup will operate
Put a DVM on the tan / blk wire at the trans plug and see if it goes to ground ,
shake wire while you are doing it , may be a intermittent ground somewhere
Thread Starter
Member
Joined: Jul 2011
Posts: 232
Likes: 0
From: massachusets
Car: 87 z28 stock
Engine: 305 tpi
Transmission: 700r4
Re: torque converter locking at the wrong time.
that does seem most likley. ill check it for shorting. the PO had it disconnected, i hooked it bakc up and found out why he disconnected it. i really dislike the PO of my car at this point.
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