Replacing a bad pressure sensor is relatively easy on the 545RFE transmission, as the pressure sensors are located in an easily accessible location on the side of the transmission. If the pressure sensor has completely gone bad, the transmission may stall or overheat. If it is just starting to go bad, you may notice that your transmission takes too long to get into gear. ![]() The 545RFE transmission occasionally has problems with the pressure sensor, which is mounted on the side of the transmission. Be sure to match the color-coded wires on your new solenoid to the wires on the old solenoid. All you need to do is remove the fluid container, pop out the old solenoid, and pop in the new solenoid. Thankfully, it is relatively simple to replace a bad solenoid pack. If this happens, you have to replace the solenoid packs. It may even fail to engage gears entirely. If this happens, your vehicle may go into a safety mode that limits the vehicle to very slow speeds. If your transmission is old and has a lot of miles on it, the solenoid pack may go bad. It instead relies on a solenoid switch pack to send the fluid to the right clutch pack. The 545RFE transmission is electronically controlled, so it doesn't have any transmission bands. The hard part of this job is taking apart and reassembling the transmission. Once you have located the problem checkball, you can replace it fairly easily. This requires you to take the transmission apart and locate the checkball in the valve body. You must replace the #2 checkball to solve this issue. These harsh shifts are usually caused by a worn checkball that allows fluid to get by and engage the underdrive clutch. If your vehicle hesitates when making these shifts and then jerks into gear, your transmission likely has a problem with its valve body. Harsh or Delayed Shifting IssuesĪnother common problem with the 545RFE transmission is harsh or delayed shifting, especially when shifting from third to fourth gear and from fourth gear to fifth gear. ![]() Most remanufactured 545RFE pumps will be modified to deal with this issue, as it is very well-known. The newer transmission pumps were redesigned to deal with this issue by simply removing the screws and casting the holes shut. ![]() If you have the skills and the equipment, you can replace the transmission with either a newer pump or a remanufactured pump. This issue, like many of the issues with this vehicle, is difficult to fix on your own. When this happened, the pressure in the main line fell significantly. More specifically, the pump spacer plate had two screws that tended to come loose or fall out. The issue has been investigated thoroughly, and the culprit is the pump spacer plate. Many drivers with pump issues have noticed that their vehicles either creep forward or won't move at all. The best-known issues with the Chrysler 545RFE transmission are definitely problems with the transmission pump.
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