Engine/Transmission (1994 - 1998) 47RH operation

[SpencerC]

Can a 47RH run normally, or close to it with no TPS and toggle switches controlling TQ converter lock-up and O/D? Automatic transmissions are still unchartered territory for me...

 

[DBraunig]

The RH has a hydraulic governor, you would have Park, Reverse, and 1st through 3rd would shift out normally. Without a tps, pcm or toggle switches, you would have not overdrive or lock up converter. The trans would function normally with the exception of no O/D or L/U.



Hope this helps,



Dave

 

[SpencerC]

Thanks Alot Dave, that's exactly what I'm looking for.

 

[JoeBioDiesel]

Can a 47RH run normally, or close to it with no TPS and toggle switches controlling TQ converter lock-up and O/D? Automatic transmissions are still unchartered territory for me...

You could put switches in it to get 4th and lockup if you wanted to. Not hard to do at all.



Joe

 

[SpencerC]

Yeah thats what I'm doing, center pin is 12Vpos in, and switch to ground out orange w/black is TQ conv and the other one is O/D correct?

 

[JoeBioDiesel]

Yeah thats what I'm doing, center pin is 12Vpos in, and switch to ground out orange w/black is TQ conv and the other one is O/D correct?

Center pin on what connector? I'd rather make the connections near the PCM. What year/model are you working on?, or are you putting an RH in another vehicle without a PCM?

Joe

 

[SpencerC]

yeah, I'm doing a swap into a '95 Chevy without a PCM

Should be the 3 pin connector on the trans. just above the shift lever correct?

 

[Murphy67]

pinout and wire color

94 2500 4x2



Which wire color and pinout goes from the tps to the pcm? I agree it is easier to hyjack this wire at the pcm than at the tps, especially with a primeloc fuel filter setup.

 

[Joe G.]

If I understand correctly he does not have a PCM so there are no existing wires regardless of color. It's going in a Chevy.

Hopefully you can get a connector from a Dodge wiring harness so you can keep water out. The connector is the one above the throttle lever. Switches will work ok. I suggest that you use a floor mounted dimmer switch for the lockup circuit. Rig it so the center pin of the switch is grounded. One of the other wires goes to the lockup pin in the transmission connector. The other to an LED so you can see the condition of the dimmer switch. Email me if you want to discuss wiring it in detail.