545RFE Pressure Control Solenoid 2004, remanufactured and ready to install. Fits the 545RFE. Ships fast from the USA.
If a 2004 Ram 1500, Durango or other Chrysler truck with the 545RFE five-speed has started throwing line pressure codes, dropping into limp mode, or banging into gear when hot, the pressure control solenoid is one of the first parts on the list. On this transmission that solenoid is not a loose part you can buy alone. It is built into the solenoid and pressure switch assembly that bolts to the side of the valve body, so the replacement is the whole pack. This listing is a remanufactured Mopar pack for 2004, the 23-pin round connector style shown in the photo.
The 545RFE has no throttle cable or modulator. Line pressure is set entirely by the pressure control solenoid, a variable force solenoid that Sonnax lists at about 3.5 ohms, working against the main regulator spring. Chrysler runs it in a closed loop: a line pressure sensor reports actual pressure, the computer compares it to a target based on engine torque, and it changes the solenoid duty cycle to close the gap. The service information is specific about the direction: roughly 5 percent duty cycle means the solenoid is off and pressure is at maximum, about 62 percent means minimum pressure. During shifts and in Park and Neutral the target is held at a preset 120 or 135 psi. The same pack also carries the six 1.3 ohm clutch solenoids and the pressure switches, and on a 2004 that still includes the overdrive solenoid that Chrysler dropped from the 2010 and later pack.
Line pressure codes have more causes than the solenoid. Chrysler's P0868 list includes low fluid, a cracked or plugged primary filter, a loose spin-on cooler return filter, a sticking main regulator valve and a bad line pressure sensor or connection. Start with the fluid level and filters, then compare desired and actual line pressure on a scan tool and back it up with a mechanical gauge on the case port. Our pressure control solenoid and line pressure testing guide walks through those readings. If shift solenoid codes are in the mix too, the 45RFE shift solenoid guide covers the resistance checks at the connector.
This pack is listed for the 2004 545RFE. The 545RFE and 45RFE share the same pack family, but Chrysler revised the pack and its connector over the production run, and later packs lose the overdrive solenoid circuit, so a pack from a different year is not automatically interchangeable. Compare the connector and the part number stamped on your old pack with the photo before ordering, or send us your year and VIN and we will check it. Browse the rest of the 45RFE and 545RFE parts if you need a different year.
| Fits | 545RFE 2004 |
| Part type | Pressure Control Solenoid |
| Condition | Remanufactured |
| Brand | Mopar |
| Ships | From the USA |
| Warranty | 1-year |
Doing this repair right usually means replacing these at the same time. Same transmission, ships together.
No. On the 45RFE and 545RFE the pressure control solenoid is part of the solenoid and pressure switch assembly, so the pack is replaced as one unit. That is what this listing is.
Do not assume it will. Later packs dropped the overdrive solenoid and Chrysler changed the pack over the years. Match the connector and the part number on your old pack, or send us your year and VIN.
P0868 line pressure low and P0869 line pressure high are the usual ones. Rule out low fluid, a plugged primary filter, a loose spin-on filter and the line pressure sensor first, since Chrysler lists all of them as causes.
ATF+4 only. Fit new filters at the same time so debris from the old pack does not stay in circulation.
Yes. Chrysler calls for the Quick Learn procedure with a scan tool after a solenoid pack replacement. Shift quality can be poor until it is done.
