48RE Pressure Controller
Is your performance module causing transmission shudder and clutch slippage? Probably is...
Prevent torque converter shudder and clutch slippage on the 2005-2007 Dodge 5.9L with 48RE transmissions by installing the BD 48RE Pressure Controller. Easily plugs inline with factory sealed connectors to the 48RE TTVA motor on the driver’s side of the transmission making for a clean installation.
Like its predecessors (47RH/47RE), the 48RE transmission’s low mainline pressure at lighter throttle pedal position can cause shudder and slippage. When coupled behind the Common Rail 5.9L Diesel engine with its peak torque at mid-range RPM’s, this potential shudder and slippage can be amplified.
When engaged with the rotary switch mounted on the dash, the Pressure Controller has three different levels that can be selected to increase mainline pressure by mimicking higher throttle positions, preventing mid-range convertor shutter and clutch/band slippage.
The Pressure Controller is designed to almost eliminate all shuttle shifting with light throttle and as an added feature, this unit slightly holds or delays shifting to prevent lugging and improve transmission function – reduces shift flare and gear hunting.
The Pressure Controller ‘s pressure increase is at its greatest during light throttle positions and ramps towards stock pressures as the pedal gets closer to full throttle when the extra pressure is no longer needed.
With performance modules for the 5.9L Diesel engine, the increase in horsepower tends to make the driver apply less throttle to obtain desired vehicle speeds. In turn, the less APPS
applied causes lower mainline transmission pressures to be developed causing potential shudder and slippage. The Pressure Controller compensates for lower APPS
Accelerator Pedal Position Sensor
and brings the pressure up to a level to protect the transmission and converter.
Accelerator Pedal Position Sensor
Compared to some of the competition on the market, the BD 48RE Pressure Controller has higher pressure, more elaborate control and easy factory plug-in installation. Another reason to think BD when looking for your Diesel transmission needs.
- Available Makes
- Available Engines
2005 - 2007 5.9L CR
- Available Transmissions
Nov 30, 2011
2005 Dodge 2500 4X4. Let me start by saying that I am very impressed with BD's products. They deliver what they say, by far. I have worked on quite a few 48 RE's and they have always lacked one thing, good lock-up. Especially when pulling. I have installed a handful of shift kits, which seem to fix the low line pressure shifting issues. But, they are not adjustable once they are installed. They are a one-shot-deal usually. The other issue is that you MUST change your fluid and filter after you drop the pan. This is a one of a kind product that utilizes the electronics to accomplish the same thing and makes it more user friendly by offering different set points. I HIGHLY recommend this product for the 48RE! Very impressive! No programmer on the market allows for adjustment of the shift pressure. Word to the wise...DO NOT run it on set point 3 unless you are racing. It wont hurt the tranny but it shifts very strong and super quick downshifting. My stock pressure was around 6 psi and at set point 2 it's around 18 psi. That's more than sufficient. Thanks for a product that actually works!
Reviewed By: John
Aug 29, 2011
Put this in a 07 5.9 today, the balky shifts are gone! Thanks guys, the 1 setting seems great for just loafing around town, nice tight quick shifts, the usual ca-da-clunk 1-2 , 2-3 is gone, crisp shifts! best money I have spent on this great truck!!
Reviewed By: Reg
1030348 2005-2007 5.9L 48RE Transmission
BD Diesel Challenge Weekend - May 23, '15
May 22nd, 23rd, 24th
Mission, Abbotsford, Monroe
NHRDA Diesels on the Mountai - May 29, '15
Sled Pull May 29th
Jefferson County Fairgrounds
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