48RE Governor Pressure Solenoid 2000, new and ready to install. Fits the 48RE. Ships fast from the USA.
If your Dodge Ram with an RE-series four-speed automatic suddenly holds first gear, shifts late and hard, or will not downshift when you stop, and the scan tool shows P1756 or P1757, the governor pressure solenoid is one of the first parts to look at. This listing is a new Borg Warner governor pressure solenoid matched to the 2000 model year design. That year sits before the 48RE existed (the 48RE arrived with the 2003 Ram heavy duty Cummins trucks), but the 46RE, 47RE and 48RE all share the same electronic governor layout, which is why the part is cataloged under the whole family.
Older Chrysler four-speeds used a spinning mechanical governor on the output shaft. The RE family replaced that with an electronic governor bolted to the underside of the valve body transfer plate. Inside the governor body sit two parts: this solenoid and a governor pressure sensor held in by an M-shaped spring clip. The transfer plate feeds line pressure into the solenoid, and the solenoid bleeds that down to the governor pressure the shift valves need.
The factory service manual describes it as a duty-cycle solenoid with an inverse relationship: about one amp of average current gives zero governor pressure, and zero current gives maximum governor pressure. The PCM supplies 12 volts through the transmission control relay and switches the ground side. The sensor reads what the solenoid actually produced and feeds it back so the PCM can correct it. Governor oil then pushes on the 1-2 and 2-3 governor plugs, so a solenoid that cannot hold its target moves every upshift and downshift with it.
Sensor-side codes are different. P1762, P1763 and P1764 flag the governor pressure sensor signal (offset, voltage too high, voltage too low). Those usually point at the sensor or its wiring rather than the solenoid itself.
Start with fluid level and condition, since the solenoid sits in the pan and a clogged inlet screen on the solenoid acts just like a dead one. Then pull codes and watch governor pressure on a scan tool. The factory gauge test puts a 100 psi gauge on the governor port: with the truck in Drive, brakes on and the engine at idle, governor pressure should read no more than 3 psi, then rise smoothly by roughly 1 psi per mph up to 30 mph and fall back when you stop. Pressure that is high at idle points at the solenoid system; pressure low at every speed points at the solenoid, the sensor or the control module. Our 48RE Ram 2500 Cummins shift problems guide walks through separating a governor fault from a valve body or band problem, and the 48RE Cummins failure points guide covers the governor plug wear that can mimic a bad solenoid.
This part is listed for 2000. The governor electronics changed for the 2000 model year, and the 2000-up pressure sensor uses a black square connector instead of the round gold sensor used on 1996-1999 units, so a late-style solenoid and sensor should be matched to a 2000-or-later transmission and harness. Before ordering, pull the pan and compare the sensor and solenoid connectors in your governor body with the product photo, or send us your year, transmission model and VIN and we will confirm it. If you have an earlier truck, see the other governor solenoid versions on our 48RE parts page.
| Fits | 48RE 2000 |
| Part type | Governor Pressure Solenoid |
| Condition | New |
| Brand | Borg Warner |
| Ships | From the USA |
| Warranty | 1-year |
Doing this repair right usually means replacing these at the same time. Same transmission, ships together.
It is listed for the 2000 design, which carries over to the 47RE and later 48RE. Confirm your governor sensor has the black square connector, or send us your VIN and we will check it before it ships.
Not as a direct swap. 1996-1999 units use the earlier round gold governor pressure sensor and harness. Look at our 1996-99 governor solenoid listings for those years.
P1756 and P1757 are governor pressure control faults that commonly involve the solenoid. P1762, P1763 and P1764 are sensor signal codes and usually point at the sensor or wiring first.
ATF+4. Chrysler warns that a non-specified fluid can cause poor shift quality and converter shudder. Check the level with the fluid hot, engine idling and the selector in Neutral.
Yes. The governor body is on the valve body transfer plate inside the pan. The factory procedure has the valve body out, so plan on a pan drop, valve body removal, new gaskets and a fluid refill.
There is no clutch relearn on these four-speeds, but clear the codes, then verify governor pressure on a scan tool or gauge and set the line and throttle pressure adjustments per the service manual.
