2500 stall unlocking/locking
Thread Starter
Teching In
Joined: Feb 2017
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2500 stall unlocking/locking picked up a 4l60e and threw in a 2500 stall/servo. stock 5.3/4l60e been driving it to work and have about 100 highway miles on it lockup functions fine. when driving around 40-45mph at crusing speed (around 10% tps and around 1300-1500 rpms) it will constantly lock/unlock every 3-5 secs and fluctuate about 100 rpms . any more tps over 12% or speed (over 45) it will lockup and act fine. I can touch my brakes (tcc switch) it will remain unlocked fine. is possibly a tuning issue?
I read the stickeys but didnt see any with this particular issue since this works fine except for the speeds i listed
I read the stickeys but didnt see any with this particular issue since this works fine except for the speeds i listed
Last edited by Outoftime; Jun 27, 2017 at 05:25 AM.
TECH Enthusiast
Joined: Sep 2016
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From: North Jersey
I'm going to GUESS that it might require a tune.
"Maybe" the computer is "seeing" the new converter as slip vs the old stock (tighter) converter or something else and making it do that?
Like I said, it's a guess.
"Maybe" the computer is "seeing" the new converter as slip vs the old stock (tighter) converter or something else and making it do that?
Like I said, it's a guess.
Thread Starter
Teching In
Joined: Feb 2017
Posts: 5
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Yea I had seen that somewhere as long as you stayed under 3k you should be fine. But then the only complaints from people that have gone bigger without a tune is it going to limp mode or hitting the limiter before it shifts. Which mine does neither of those
Thread Starter
Teching In
Joined: Feb 2017
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Guess I'll drop it off with frost for a mail order tune... link dosent work for me but most of the people I see saying this say it's doing it all the time over 40mph. I log my on a edge insight and it's only during those %tps and speed. Didn't wanna spend money on the tune just yet since I wanted to pull the motor back out and do cam/springs etc. I just slapped it all togeather to make sure my donor motor,trans,cooling all worked but the trans didn't come with a converter so i stuck the acc 2500 in there
