48RE Solenoid Kit 1994-1999, new and ready to install. Fits the 48RE. Ships fast from the USA.
When a late-1990s Ram with an automatic begins taking off in second, hangs in a gear, skips overdrive, or never seems to lock the converter on the highway, the electrical parts on the valve body are where most of those complaints start. This kit puts every one of them in one box together with the service parts you need once the pan is down. The photo shows the overdrive/converter clutch solenoid block on its braided harness with the round case connector, a governor pressure solenoid, a governor pressure sensor with the early style plug, the governor body gasket, a transmission filter, a pan gasket, two springs and a retaining clip. The listing says 48RE, but for these years the transmission in your truck is a 46RE (gas V8) or a 47RE (Cummins diesel and V10). The 48RE that came afterward kept the same governor and solenoid arrangement.
ATSG sums up the design: first, second and third are controlled by an electronic governor solenoid on the valve body, while fourth gear and converter lockup each have a separate solenoid. The governor solenoid takes line pressure in and bleeds it down to whatever governor pressure the PCM wants; the more current the PCM sends, the lower the pressure. The sensor, which also contains the fluid temperature thermistor, tells the PCM what pressure actually arrived. When either piece drifts, the shift valves move at the wrong road speed. When the overdrive or converter coil fails, you lose fourth or lockup outright.
Start with the basics: fluid level checked hot in Neutral, then codes read with the engine running. The solenoids get their power through a transmission control relay that only turns on with the engine running, so a key-on-engine-off test can mislead you. On a scan tool, governor pressure should sit near zero at a stop and rise with road speed; a reading that will not follow the PCM's request points at the solenoid, while a gauge that disagrees with the scan tool points at the sensor. Our governor solenoid diagnosis guide and Ram 3500 common problems guide lay out the sequence.
The governor solenoid and sensor only exist on electronic-governor RE transmissions; technical references cover those trucks from 1996 on. If you have a 1994 or 1995 Ram and there is no governor solenoid and sensor on the valve body transfer plate, your unit has the older hydraulic governor and this kit is not the part for it. The sensor in this kit is the early style; Sonnax notes the plug changed to a rectangular connector for 2000, so a 2000-up truck needs our 2000 solenoid kit. Hold your old sensor and filter next to the photo before installing, or send the year and VIN and we will confirm. More RE parts are on the 48RE collection page.
The Chrysler service manual sequence is filter off, governor sensor and solenoid unplugged, governor body and retainer plate unbolted from the transfer plate, sensor released by its M-shaped clip, solenoid pulled straight out. The overdrive/converter block unbolts from the valve body after you remove the small shoulder bolt holding its case connector at the 3-4 accumulator housing. Reassemble with the new gasket, tighten the governor body screws to 35 in-lb, the filter screws to 35 in-lb and the pan to 13 ft-lb, and perform the line and throttle pressure adjustments. Fill with ATF+4. If the valve body is worn, pair this with a remanufactured valve body.
| Fits | 48RE 1994-1999 |
| Part type | Solenoid Kit |
| Condition | New |
| Brand | OEM |
| Ships | From the USA |
| Warranty | 1-year |
Doing this repair right usually means replacing these at the same time. Same transmission, ships together.
Yes, as long as the sensor plug matches. The 47RE in Cummins and V10 trucks uses this electronic governor and dual solenoid layout. The 48RE name came later.
Only if that truck has a governor solenoid and sensor on the valve body. Earlier hydraulic-governor units do not use them. Look at the transfer plate, or send us the VIN.
From the photo: overdrive/converter solenoid assembly with harness, governor pressure solenoid, governor pressure sensor, governor body gasket, filter, pan gasket, two springs and a retaining clip.
When the PCM sees a governor or solenoid circuit fault it shuts off the governor solenoid, which leaves the truck in a fixed gear. Read codes first; the cause can be a sensor, a solenoid, wiring or the relay.
Chrysler lists about 3.8 L (4 qt) for a pan and filter service. Add, start the engine, then check the level hot in Neutral and top up with ATF+4.
