200-4r torque converter lock up switch

[adrianMCmoreno]

Hello all! I am currently removing all the smog components out of my 86 Monte Carlo ss and removing the wire harness. In doing so, I'm finding out that I need a lock up switch for the transmission.
Of all the ones I've found, I prefer the external wired version. which consists of putting a oil pressure switch on the fourth gear plug on the outside and wiring it to the electrical plug to engage the lock up. My question is, does anyone know a part # to which pressure switch would be used here. Or are they all generic. I know there's kits out there available, but I'm not too keen on paying a 100 plus dollars for a plug and a pressure switch. Lol any help is greatly appreciated. Thanks, fellas.

 

[64nailhead]

I'm not familiar with using a pressure switch for lock up. A vacuum switch, yes but not a pressure switch.

 

[Sweet_Johnny]

I too am unfamiliar with the use of a pressure switch in this application. I've read of toggles or vacuum, but this intrigues me.

 

[-dw-]

20$ for a pressure switch kit seems like an ok deal. I see no specs on the switch. Naturally normally open and a minimum amount of pressure to close.

When my 700 was built in 03 I had it setup for hydraulic lockup which came in 3rd and always stayed locked in 4th. After quite a few yrs the 3rd gear lockup cause some issues so I switched to electric lockup. I hook up a pressure switch in 4th gear pressure port. I added switched 12v and a timer delay relay (don’t want 3-4 shift the same time as lockup) it works better than expected. My 700 shifts into 4th around 45mph and the rpm isn’t low enough to ever lug.

 

[ELCAM]

Pressure switch is a Chrysler part 5234188; 4221346. Rostra 501448 ($4.65 @ rock auto), standard motor products PS-182 ($17 @ rock auto) or WVE 1S6619 (out of stock @ rock auto).

Connector is WVE 1P1149 or Dorman 15182 (Both about $9 @ rock auto).

 

[Clone TIE Pilot]

You are better off keeping the computer. It locks up the TC better than anything the aftermarket offers.