SKU: 30024986628

ATS Diesel 601-900-8320 42Rle Co-Pilot Transmission Controller Fts 2007-2011 3.8L Jeep

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Description

ATS Diesel 601-900-8320 42Rle Co-Pilot Transmission Controller Fts 2007-2011 3.8L JeepCoPilot Pressure Controller 2007 2011 Jeep 42RLE. The ATS Co Pilot for the Jeep 42 RLE (2007 to 2011 only) is a Must, it commands line pressure and internal clutch timing within the transmission to improve the reliability of the 42 RLE transmission by adding holding force of the clutch packs and converter clutch. Any Jeep that has over sized tires or a modified engine Needs the assistance of the Co Pilot transmission controller to increase the line

CoPilot Pressure Controller - 2007-2011 Jeep 42RLE. The ATS Co-Pilot for the Jeep 42-RLE (2007 to 2011 only) is a Must, it commands line pressure and internal clutch timing within the transmission to improve the reliability of the 42-RLE transmission by adding holding force of the clutch packs and converter clutch.

Any Jeep that has over sized tires or a modified engine Needs the assistance of the Co-Pilot transmission controller to increase the line pressure of the transmission to adjust for higher power levels or oversized tires. The Co-Pilot will work on any transmission stock or modified, when used in conjunction with an ATS transmission or valve body maximum line pressure is achieved providing the best in transmission performance and reliability.
The 42-RLE is plagued by small clutch packs, weak hard parts, a constant slip torque converter lock-up, and inadequate line pressure. Typically, these issues can result in the failure of the stock transmission with just a mild tune or larger tires. The Co-Pilot addresses these concerns.
What is the ATS 42-RLE Co-Pilot
The Co-Pilot consists of a controller and wiring harness. The harness plugs into the TCM connector on the main computer located in the engine compartment. The harness is completely plug and play for easy installation. The controller mounts in the cab and allows the driver to view critical transmission and engine inputs such as line pressure and commanded engine load. To view the different sensor inputs all you do is depress the up or down arrows. These changes can be made on-the-fly or with the vehicle stopped.
What Does the ATS 42-RLE Co-Pilot Do
The Co-Pilot controls line pressure, clutch timing and more aggressively applies the converter clutch under high torque situations. Line pressure is limited in a stock 42-RLE to 90 PSI. Unfortunately, this is not high enough to reliably prevent clutch slippage at higher power levels. The Co-Pilot senses throttle position to quickly take control of line pressure when it is needed. However, when the vehicle is driven lightly, line pressure is near stock for comfortable shifts and lower transmission temperatures. This is all done automatically in the controller.

Line pressure is increased more dramatically and lubrication pressure is increased with the addition of an ATS Valve Body. While the ATS valve body installation isn't necessary, it will increase the performance of the Co-Pilot to its fullest potential. We recommend installing one of our modified valve bodies to fully address all of the internal hydraulic issues with the stock 42-RLE Valve body.

The Co-Pilot has a huge advantage over TCM programing on 2007 to 2011 Jeeps because of the way the factory TCM is designed. We have found when aftermarket tuning for higher line pressures are done to the ECM/TCM to command higher line pressure in the transmission many if not all aftermarket TCM tuning will cause a radical pressure variation that spikes line pressure causing lots of problems. For this reason, you will find TCM tuning is not desired on the 3.8L and when TCM tuning is used many tuners do not allow for full line pressure increases like the Co-Pilot does, the Co-Pilot utilizing its dynamic closed loop control addresses this with an averaging circuit that provides a very smooth and controllable line pressure rise up to 155PSI. Clutch timing is programmed into the Co-

Pilot to increase clutch pack life. On any 42-RLE transmission, clutch timing is optimized to reduce wear on clutch packs, efficiently transfer power and increase reliability.
The torque converter lock-up apply on a stock 42-RLE leaves a lot to be desired. The factory TCM will command lock-up at a very low apply rate when at light throttle, this causes a slipping condition that damages the converter clutch especially when behind a modified engine or when running over sized tires. The ATS 42-RLE Co-Pilot will more firmly lock the converter clutch during apply, this allows the inherent torque of the 3.8L engine to be used for better efficiency and performance.
Modes Available in Co-Pilot
Setting 1 (down or all the way to the right)
This mode shows you what the position of the TPS is. No Lights-0 percent and 5 lights -100 percent 
Setting 2 (Two positions from the right)
This mode shows you what the actual transmission line pressure is No Lights -70 PSI line pressure and 5 lights-155 PSI Line pressure.
Features:

  • 2007-2011 JK/JKU/TJ
  • Jeep HEMI
  • Diesel
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SKU: 30024986628

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Houston, US
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Freedom. At last!
Format: Hardcover, Format: Hardcover
Amazing! This book put everything into with great perspective. Stop chasing getting things done that you can have someone else with their genius tackle. It will free your soul and time in ways you can’t imagine. Thank you for the brilliance!
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Reviewed in the United States on January 25, 2026
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Asim Ghaffar
West Palm Beach, US
★★★★★ 4
Unlocking Success Beyond Self-Reliance
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Dan Sullivan’s book “Who Not How” is a transformative guide that redefines the way we approach challenges and goals. Rather than asking “How can I do this?” the book challenges readers to ask, “Who can help me achieve this?” This shift in thinking opens up the potential for exponential growth, efficiency, and success. Sullivan’s core premise is that the path to achieving your ambitions isn’t about taking on everything yourself but rather identifying the right people who can help you get there. This insight is particularly valuable for those who find themselves caught in a cycle of overwork and frustration when trying to handle every aspect of their projects or responsibilities alone. Although, the main idea of the book is inspiring and powerful, the book does come across as promotion of Sullivan’s Strategic Coach program, which might be off-putting for some readers. While the book is relatively short, it still feels somewhat wordy and could have been more concise. Many chapters follow a predictable pattern: a story about Mr. X who faced a challenge, found a “Who,” achieved success, and then helped the “Who” in return. This repetition can make the narrative feel formulaic at times. Additionally, there are numerous one-liners throughout the book that seem disconnected from the surrounding text. While these sentences are mostly quotable, their placement can feel abrupt and unrelated to the passage before or after. Despite these critiques, the book is filled with examples that showcase how leaders and entrepreneurs have leveraged this mindset. By engaging with the right “Who,” you not only save time and energy but also unlock a level of creativity and collaboration that propels your goals further than you could imagine on your own. For readers seeking to achieve more while doing less, Sullivan’s book is a great read. It offers a liberating perspective that not only boosts productivity but also enhances personal fulfillment by allowing you to focus on what you do best and rely on others for the rest. I would rate it 4/5 for its mostly thought-provoking content.
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Paul Gustavson
Carnegie, US
★★★★★ 5
The Goto Resource for every Leader
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The title says it all — Who Not How — and the content brings it to life. At its core, this book reminds us that our greatest calling is rooted in relationships. It’s also where our greatest assets are found. We don’t need to do everything ourselves—we need Whos in our lives, and we need to be a Who in the lives of others. This is a must-have resource for every leader.
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lucaberta
Houston, US
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An important book to read, and whose concepts MUSTbe put into practice
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As an admirer of the work that Dan Sullivan and Benjamin Hardy have done individually, I was sure that a collaboration, two “whos” getting together, would be a good hit. And a good it it is! The issue with these kind of books is what happens immediately after one has finished reading them. The issue is to put things into practice, and change the way we do things. This requires thinking, and thinking is hard, and in most cases we do NOT dedicate time to thinking, so the concepts slide into the past, and no change happens. Time for me, and everyone, to change this default state. This review is just the start of a written reflection, a “thinking on paper” exercise, like my friend and great thinker Jean Moroney calls it. For me, it’s time to shift to my journal. For you, dear readers, it’s time to get this book and read it. Make Dan and Ben your “whos”. Now.
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Drew Lipold
Phoenix, US
★★★★★ 5
A must read
Format: Kindle
Every entrepreneur should read this book at the beginning of their journey. “Who Not How”, provides valuable insight needed to allow you to grow your business.
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Reviewed in the United States on January 20, 2026

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