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#CHANGE MOPAR DODGE RAM PRESSURE SENSOR 545RFE TRANSMISSION DRIVER#
#CHANGE MOPAR DODGE RAM PRESSURE SENSOR 545RFE TRANSMISSION MANUAL#
#CHANGE MOPAR DODGE RAM PRESSURE SENSOR 545RFE TRANSMISSION PC#

I recommend not replacing the round seal, if not properly sealed, it will cause the transmission to burn up. This kit comes with a gasket and a round seal as well. The advanced auto 4wd part number is FK-319. The advanced auto 2wd part number is FK-330. The main sump filter is different for 2wd and 4wd. Both filters are accessed after the trans pan is dropped. There are 2 filters in this unit, the main sump filter, and a cooler return line filter (looks like an oil filter).

The 4.7L and the 5.7L HEMI use the same transmission, so it should also be the same filter part numbers for both engines. For more information, you should look at the Jeep section of Consumer Reports or similar to see if what the reliability rating is for the Hemi and tranny.Īs for the 545 services, the same tranny casing is used on the 45RFE, 5-45RFE, and 68RFE, so this procedure is the same for these transmissions as well, but check part numbers and fluid capacities.

#CHANGE MOPAR DODGE RAM PRESSURE SENSOR 545RFE TRANSMISSION DRIVER#

The biggest difference between the RE and the RFE is that the later does not have support for driver interactive shifting ( sport shifting mode).Īs for reliability, the RFE is generally considered above average, but a number of people have had problems after installing an aftermarket computer programmer. Like the RE, the RFE comes out of the Jeep parts bin and has been used in Jeeps since at least 2004. In fact, the 545RE would have been the first widely available production 6-speed auto, except the engineers used the 6th gear as an extra overdrive gear. The 545RFE is based on the 545RE tranny which has been around since 1999. The torque converter and the planetary gear sets are the two main components of an automatic unit. Inside the unit is the planetary gear sets, which are responsible for providing different gear ratios. The bell housing is the place where the tranny connects to the motor.

#CHANGE MOPAR DODGE RAM PRESSURE SENSOR 545RFE TRANSMISSION MANUAL#

To get a better understanding of how an AT unit works, the best place to start is the bell housing, which contains a torque converter as opposed to a clutch found in manual vehicles.

Planetary gearsets in the unit create different gear ratios, allowing the car to shift between different gears based on the communication from the torque converter.

The torque-converter connects your motor to the unit and puts pressure on AT fluid to communicate speed.

The bell housing contains a torque-converter, which replaces the clutch used in a manual system vehicle

The engine connects to the unit at the bell housing.

At its simplest, automatic transmissions function as follows:

#CHANGE MOPAR DODGE RAM PRESSURE SENSOR 545RFE TRANSMISSION PC#

AT units contain mechanical frameworks, water powered frameworks, electrical frameworks, and PC controls, all cooperating in immaculate agreement which goes for all intents and purposes unnoticed until there is an issue.Īutomatic transmissions use gears to make the most effective use of an engine’s torque, allowing the engine to operate at an appropriate speed while providing a wide range of output speeds for the car.