545RFE Pressure Control Solenoid 2009, new and ready to install. Fits the 545RFE. Ships fast from the USA.
A 545RFE that bangs into drive, slips on the 2-3 or 3-4 shift, or drops into limp mode with a line pressure code is usually pointing at the pressure control system. On the 45RFE and 545RFE that system is two parts working together: the pressure control solenoid inside the solenoid pack, and the line pressure sensor (transducer) that reports back to the computer. This listing replaces both at once. It is a new Mopar solenoid pack with the line pressure transducer, two filters for a 2WD (4x2) truck and a pan gasket, listed for 1999 through 2009 Dodge Ram 1500, Durango and Dakota and Jeep Grand Cherokee, Commander and Liberty applications.
There is no throttle cable or vacuum modulator on an RFE transmission. Line pressure comes entirely from the pressure control solenoid, a variable force solenoid bolted into the solenoid pack on the side of the valve body. The main regulator spring is set for high pressure and the solenoid works against it, so Chrysler's service information describes about 5 percent duty cycle as maximum pressure and about 62 percent as minimum. The loop is closed through the transducer: the computer reads actual pressure from the sensor, compares it with a target calculated from engine torque, and adjusts the solenoid. During shifts and in Park and Neutral it holds a preset of roughly 120 to 135 psi. Because the solenoid and the sensor check each other, a fault in either one shows up as a pressure complaint, which is why replacing them together is the cleaner repair on a high-mileage truck.
Scan for codes and compare desired versus actual line pressure on a scan tool. Then put a mechanical gauge on the external line pressure port and compare it with the transducer reading. Chrysler's test calls for the two to agree within about 10 psi. If the gauge is good and the sensor reading is not, the transducer is the problem. If both are low, check fluid level and the filter before blaming the pack, because a worn pump or regulator valve can also cause low pressure. Our 45RFE pressure control solenoid testing guide walks through the duty cycle readings and the 3.5 ohm solenoid check, and the valve body testing guide covers the cases where the bore, not the solenoid, is the leak.
The listing covers 45RFE and 545RFE transmissions from 1999 to 2009 in rear-wheel-drive and 4x4 trucks and SUVs, but the filters in this kit are the 2WD versions. A 4x4 truck uses a different primary filter, so 4x4 owners should plan to buy that filter separately or reuse only the pack and sensor. Solenoid packs also changed connector and design over these years. Compare the connector shape and the part number on your old pack with the photo before ordering, or send us your year and VIN and we will check it. The pack in this kit is listed as Mopar 68002342AD. Every 45RFE and 545RFE part we stock is on the 45RFE/545RFE collection page.
If the valve body bores are worn, a new pack will only mask the leak for a while. In that case a complete 545RFE valve body is the better fix, and on trucks with harsh 2-3 or 4-5 shifts the billet accumulator piston kit is worth installing while the pan is off.
| Fits | 545RFE 2009 |
| Part type | Pressure Control Solenoid |
| 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.
The pressure control solenoid is built into the solenoid pack and is not sold as a loose part. This kit includes the complete new pack, which contains the pressure control solenoid, the shift solenoids and the pressure switches, plus the line pressure transducer, two 2WD filters and a pan gasket.
The pack and transducer are listed for 1999-2009 45RFE and 545RFE applications, but the filters included are the 2WD style. A 4x4 needs its own primary filter. Send your year and VIN if you want us to confirm the pack and connector.
It is the usual repair for P0868 and P0869 line pressure codes, P0932 and P0934 sensor circuit codes and solenoid circuit codes from the pack, as long as the gauge test shows the valve body and pump are holding pressure.
Yes. Chrysler requires the Quick Learn procedure after a solenoid pack replacement. It needs a scan tool, the brakes applied, the engine above 500 rpm and the throttle closed.
ATF+4 only. A pan-drop service with filters takes roughly 5 to 6 liters depending on 2WD or 4x4, so check the level hot after the Quick Learn.
