Transmissions and Drivetrain Need help with your trans? Problems with your axle?

What Sensors?

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Old Oct 7, 2007 | 10:31 PM
  #1  
Orinackra's Avatar
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From: Pittsburgh, PA
Car: 06 SRM M6 GTO, 98 Grand Prix GTP
What Sensors?

on a 91 automatic, I have 2 sensors. One of which being the vss.... question is which of the 3 different ones do I need? I dont have the rpos, whats different about them?
And two, what is the square 4 prong sensor? And how important is that?
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Old Oct 7, 2007 | 11:24 PM
  #2  
Toehead's Avatar
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From: North Central Mass.
Car: 1985 Berlinetta
Engine: Megasquirted TPI
Transmission: Transgo 700R4
Axle/Gears: 3.42
Re: What Sensors?

The square p;lug is:

4th gear indicator switch
+12v (for the tcc lockup solenoid)
tcc lockup
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Old Oct 7, 2007 | 11:38 PM
  #3  
Orinackra's Avatar
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From: Pittsburgh, PA
Car: 06 SRM M6 GTO, 98 Grand Prix GTP
Re: What Sensors?

thanks. I actually think I have my rpos after all, so I'm cool with the vss..

But what about the tcc lockup? What will happen if I dont have it hooked up?
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