Is a 45RFE the same as a 545RFE?
The 45RFE later became the 5-speed 545RFE. Gear Ratios: 1st 3.00:1. 2nd 1.67:1.
What is a solenoid block?
Air suspension solenoid valve blocks are responsible for distributing air from the compressor to air struts or air springs. Over time its O-rings can dry rot, causing damage to the compressor via air leaks and overworking, along with moisture damage to the electrical solenoid components.
Can you bypass shift solenoid?
To bypass the shift and TCC solenoids, you simply need to connect standard 194 light bulbs to these individual circuits coming from the PCM and then connect the other side of the bulbs to ignition B+. The light bulbs will then serve as a “load” which will simulate the solenoids.
What is a transmission solenoid pack?
Specifically, in an automatic transmission, we mean the flow of automatic transmission fluid into and through the transmission. In modern transmissions, the transmission solenoid generally comes in a pack which is installed in the transmission control unit, the transmission control module, or a transmission valve body.
What vehicles have a 45RFE transmission?
The 545RFE made its way into Chrysler’s entire fleet of rear-wheel drive trucks, save for sedans and coupes: the Jeep Liberty, Dodge Ram, Dodge Dakota, Dodge Durango, and Jeep Commander.
What does 545RFE stand for?
The ’45’ refers to its torque rating, i.e., ‘5,’ while ‘4’ represents the number of forward gears. ‘RFE’ refers to the ‘rear-wheel-drive application and full electronic controls. ‘ But by 2001, the 545RFE transmission was produced due to a taller, extra overdrive ratio and programming changes.
What causes a transmission solenoid to go bad?
Common causes of transmission solenoid failure include: Electrical issues (e.g. applying incorrect voltage to the coil) Dirty transmission fluid, which may cause the shift solenoid to become stuck open or closed.
Can a bad solenoid cause transmission slip?
As the engine or transmission control unit signals the solenoids, the valves will open or close to regulate the movement of transmission fluid. Should that process begin to slow down or fail, the pressurization of the transmission clutch and bands will cause the shifting of gears to slow, slip, or possibly fail.
Is the 545RFE a good transmission?
it’s a fairly reliable transmission, although it can stand to be tuned for better performance. its good to around 400-450 horsepower before you would need to upgrade it. just do your normal maintenance on it and you should be fine as long as you own it.
What are the signs of a bad transmission solenoid?
Signs of a Bad Transmission Shift Solenoid
- Delay shifting upon acceleration and deceleration.
- Your transmission is stuck in neutral.
- Rough shifting.
- Engine revs loudly even when you apply the brakes.
- Your transmission cannot downshift and the engine is loud.
What are the symptoms of a transmission solenoid going out?
You experience delayed gear shifting and a sense of pulling or slipping when trying to shift between gears. The vehicle will not downshift as you slow down. An inability for the solenoid valve to operate may prevent your car from downshifting, and the engine will continue to rev as you attempt to brake.