Super Yank 3500 Lock Up Problems
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TECH Apprentice
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Joined: Nov 2001
Posts: 375
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From: Kansas City, MO
Super Yank 3500 Lock Up Problems This is the first full winter I've had the convertor in, and I noticed that it doesn't lock up like normal. So far after 15min or so on the highway, it'll lock. But, before then, it definitely won't lock up. I checked the fluid 2wks ago when I noticed the problem and it is fine. Is this just due to the cold weather? I have not yet made a block off plate for my tranny cooler (smallest b&m one). What's the best material to make the block off plate out of and how would you mount it? Could that be the problem?
This is my daily driver btw.
Thanks.
This is my daily driver btw.
Thanks.
Launching!
Joined: Dec 2001
Posts: 241
Likes: 0
From: Bowling Green, Kentucky
Re: Super Yank 3500 Lock Up Problems Hey this "could" possibly be due to engine temperatures. I "think" that our cars won't lock up until the are at 174 degrees. That's just what I was told so I am not sure, but that could be your problem. What's your operating temperater like when it locks up???
Thread Starter
TECH Apprentice
iTrader: (9)
Joined: Nov 2001
Posts: 375
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From: Kansas City, MO
Re: Super Yank 3500 Lock Up Problems I don't have autotap so I don't know what the engine temp is when it locks, but after the engine temp gauge gets up to its' normal reading, it'll start locking up a min or 2 later.
Re: Super Yank 3500 Lock Up Problems The computer will not allow lock-up below a certain operating temp. I have to go a few extra miles before it will lock, but not 15. 15 minutes = 15 miles and that seems really slow. Just saw that you have a deep trans pan too, so you have more fluid to heat than me.
I'd try a block off plate. I would use a piece of sheet metal or alumimum cut to fit and some wire to attach it.
[ January 16, 2002: Message edited by: Ragtop 99 ]</p>
I'd try a block off plate. I would use a piece of sheet metal or alumimum cut to fit and some wire to attach it.
[ January 16, 2002: Message edited by: Ragtop 99 ]</p>
Joined: Nov 2001
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From: Schiller Park, ILL Member: #317
Re: Super Yank 3500 Lock Up Problems It’s probably temp related. I’ve had my SY3500 for over a year without lockup issues. But I don’t drive it in the winter, so I can’t speak for sub freezing temps...
Re: Super Yank 3500 Lock Up Problems I believe the tranny temperature needs to be 150 degrees before the converter will lock up. If your cooler is dropping the temps below that, that could be your problem.
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2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
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2022 Cadillac Escalade 6.2L A10 S&B CAI, Corsa catback.
2023 Corvette 3LT Z51 soon to be modified.
Custom LSX tuning in person or via email press here.
2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2022 Cadillac Escalade 6.2L A10 S&B CAI, Corsa catback.
2023 Corvette 3LT Z51 soon to be modified.
Custom LSX tuning in person or via email press here.
Staging Lane
Joined: Nov 2001
Posts: 71
Likes: 0
From: Houston, TX
Re: Super Yank 3500 Lock Up Problems Sounds like the tranny temp is still to low for lock up to happen. I have the same problem when it gets real cold down here. I usually just start the car up 10 min before I leave for work, and by the time I am ready to go the car and tranny are up to operating temperature. A block off plate would definately help. Like Ragtop said, use some aluminum or sheet metal and cut it to fit.
