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4L80s & a manual control box

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Old Sep 1, 2013 | 09:13 PM
  #1  
Unstang's Avatar
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From: Waukee, Iowa
Default 4L80s & a manual control box

I have a Mustang with an 80 in it & I have the Rossler Little Black Box, everything worked fine on it, until last night. Made a few 2nd/3rd gear pulls unlocked, I slowed down & locked the converter, then the converter wouldn't unlock, the toggle switch was inop. I looked at the wiring & 1 wire was off of a terminal on the switch. I hooked it back up and nothing, still locked.

We ended up unhooking the lock up function from the box & when I moved the car the converter came unlocked.

Before we got it fixed I drove the car a few miles with it locked in all gears, did it probably tear something up? The trans/converter felt & performed normal after getting the converter unlocked & I drove it home, but now I'm wondering what the deal is. The fluid level is good, fluid looks & smells new.

Has anyone had this happen with these boxes?
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Old Sep 3, 2013 | 02:49 PM
  #2  
maddoglou454's Avatar
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From: Cumming GA
Default 4L80E FM box

We run a lot of his boxes never had any issues with them run 12 V to red wire of course, and when you activate the brown wire the converter will lockup.

You can call us and talk to a live person. Up until 10 PM Eastern standard time , Monday through Sunday.

Thank You,
"Mad Dog" Lou

Mad Dog Transmissions
Phone 770-781-0949
Fax 770-781-0969 maddoglou454@aol.com

Web: www.maddogtransmissions.com
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Old Sep 3, 2013 | 02:55 PM
  #3  
Jake's Performance's Avatar
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Trans is probably fine if the problem is the box.
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