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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 converter 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(Accelerator Pedal Position Sensor) 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.
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.
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I have a 2007 Dodge 5.9 and I purchased your Tranny performance enhancer. The directions are too small to see and vague. Do you have a better direction packet or a video to access for this install??
Sure thing I will email a set over to you!
I have an 04.5 with the engine mounted apps, will this product work with the transmission in my truck??
This product will work on the 2004.5+ trucks with the TTVA motor on the drivers side of the transmission. Here is a link to the install instructions that shows where the TTVA motor is and what it looks like. Not all of the 04 trucks had the TTVA motor. file:///C:/Users/Tyler/Downloads/(I-00226)%201030348%2048%20RE%20Pressure%20Enhancer.pdf
So if I were to purchase this and install it will help my shuttle shift. 2-3-2-3-2 at around 35 mph? And what would be a good set for daily driving around town? I have decent tranny build billet single disc T/C and reworked valve body and billet accum and strut band and running the edge evolution 85400 on economy level thank you?
It is supposed to take care of that yes. But your valve body work should take care of it also. Most will run in pos. 2 for daily.
Would you email me installation instructions??
May i have the install directions? thanks?
I sent them to you.
it feels like my engine is screaming and I'm not going anywhere until the torque converter locks up in 4th gear will this help my problem on my 06 ram 3500?
A convertor issue is likely the culprit, installing this would be a band-aid. We would recommend having the transmission fixed and diagnosed before adding controllers. - AW
I have a 2005 5.9L Cummins with a fair amount of performance enhancers matched up to an ATS transmission. With NO load on the back, I have no issues with the transmission at all. However, when I hook up to a load, my transmission will NOT shift into high gear without backing off the accelerator and returning to the top of the foot feed. Then it shifts UP and I can return to applying power to the ground. Will this product fix this issue??
Is this while in Tow/Haul mode? Does it shift three times or twice? DppSands