Introduction
For diesel truck operators, an efficient and reliable exhaust brake system is crucial for managing speed on steep or long descents. The EasyJake exhaust brake switch has become a popular aftermarket modification for diesel trucks, particularly in models such as the Peterbilt and Kenworth. This device allows drivers to toggle exhaust brake functionality without needing to physically engage the clutch pedal, streamlining operation and reducing fatigue. Based on user experiences and installation methods shared in trucking forums, the EasyJake system is typically wired into the clutch pedal switch circuit. This setup not only enables the exhaust brake to be activated independently but also provides a convenient way to cancel cruise control by momentarily engaging the EasyJake switch.
This article draws from firsthand accounts shared by diesel truck operators who have successfully installed the EasyJake system on their 2011 Cascadia and 2019 Coranado models. The insights provided are based on practical installation techniques and user-reported outcomes. Although these methods are not officially documented by the manufacturer, they represent the most common and functional approaches used by experienced truckers. The discussion focuses on wiring configurations, switch placement, and operational benefits, offering a detailed overview of how the EasyJake system can be integrated into existing truck control systems.
Understanding the EasyJake System
The EasyJake exhaust brake switch is an aftermarket device designed to simplify the operation of an engine’s exhaust brake system. In most diesel trucks, the exhaust brake is activated by engaging the clutch pedal, which breaks the circuit and signals the truck’s computer to deactivate the exhaust brake. The EasyJake switch functions by mimicking the action of pressing the clutch pedal. When the EasyJake switch is activated, it tricks the truck’s control system into believing the clutch pedal has been engaged, thereby turning the exhaust brake on or off.
This system is particularly useful for long-haul drivers who frequently navigate hilly or mountainous terrain. By eliminating the need to physically depress the clutch pedal to engage the exhaust brake, the EasyJake switch allows for more fluid and safer operation, especially in situations where frequent braking is required. The switch is typically a two-stage or single-stage toggle, depending on the model of the truck and the specific exhaust brake system it is equipped with.
Key Components of the EasyJake System
- Toggle Switch: The primary interface for the driver. It is usually mounted in a location that allows for easy access while driving.
- Wiring Harness: Connects the switch to the truck’s clutch pedal switch circuit. Proper wiring ensures the truck’s computer correctly interprets the signal from the EasyJake switch.
- Mounting Bracket or Housing: Depending on the switch type, a bracket may be used to secure the switch in place.
Installation and Wiring Techniques
The installation of an EasyJake system typically involves splicing into the existing clutch pedal switch circuit. This method allows the EasyJake switch to control the exhaust brake independently of the clutch pedal. According to user reports from trucking forums, the most common installation approach is to wire the EasyJake switch in series with the clutch pedal switch. When activated, the EasyJake switch interrupts the circuit in the same way as the clutch pedal, causing the truck’s computer to deactivate the exhaust brake. This method has been reported to work reliably in both 2011 Cascadia and 2019 Coranado models.
Step-by-Step Installation Guide
Locate the Clutch Pedal Switch:
The clutch pedal switch is typically found near the base of the clutch pedal. It is a small electrical switch that opens and closes the circuit when the pedal is pressed.Disconnect the Battery:
Before beginning any electrical work, disconnect the negative terminal of the truck’s battery to prevent accidental short circuits or electrical shocks.Access the Clutch Pedal Switch Circuit:
Use a multimeter to identify the correct wires connected to the clutch pedal switch. The switch usually has two wires: one for power and one for the signal that triggers the exhaust brake.Splice in the EasyJake Switch:
Cut the wire that leads from the clutch pedal switch to the truck’s control system. Connect the EasyJake switch in series with the wire so that it can control the circuit.Mount the EasyJake Switch:
Choose a mounting location that is easily accessible while driving. Some users prefer to mount the switch in a position that can be activated with a thumb rather than a pinky for better ergonomics.Reconnect the Battery and Test the System:
Once the wiring is complete, reconnect the battery and test the EasyJake switch. When activated, the exhaust brake should engage as if the clutch pedal had been pressed.
Common Installation Challenges
Switch Compatibility: Some users have reported that their EasyJake switch only activates the low side of the exhaust brake system, even though the switch is labeled as a two-stage model. This issue may be related to incorrect wiring or incompatibility with the truck’s control system.
Switch Placement: Finding the optimal location for the EasyJake switch can be challenging, particularly in trucks with limited dashboard space. Users have experimented with different mounting positions, including the area near the shifter or the steering wheel.
Wiring Errors: Incorrectly splicing into the clutch pedal switch circuit can lead to unintended behavior, such as the exhaust brake activating or deactivating unexpectedly. It is important to double-check the wiring connections before testing the system.
Operational Benefits and User Experiences
One of the most significant advantages of the EasyJake system is its ability to simplify exhaust brake control. By eliminating the need to physically engage the clutch pedal, the system reduces driver fatigue and improves overall safety. Users have reported that the EasyJake switch also doubles as a cruise control cancel button. When the switch is activated, it momentarily interrupts the clutch pedal circuit, which causes the truck’s cruise control to disengage. This feature is particularly useful in situations where a driver needs to quickly cancel cruise control without removing their hands from the steering wheel.
Real-World Use Cases
Mountain Driving: Users frequently navigate mountainous regions and have found the EasyJake switch to be invaluable for managing speed on long descents. The ability to toggle the exhaust brake without pressing the clutch pedal allows for smoother and more controlled deceleration.
Cruise Control Management: The dual functionality of the EasyJake switch—activating the exhaust brake and canceling cruise control—has been praised for its convenience. Users have reported using this feature to quickly adjust speed when approaching traffic or entering construction zones.
Ergonomic Improvements: Some users have modified the switch placement to accommodate their preferred hand position while driving. For example, one user mounted the switch in a position that can be activated with a thumb rather than a pinky, making it more intuitive to use.
Troubleshooting and Common Issues
Despite its benefits, the EasyJake system can sometimes encounter issues, particularly if the installation is not done correctly. Based on user reports, the following are some of the most common problems and their potential solutions.
Issue 1: Exhaust Brake Only Activates in Low Mode
Some users have reported that their EasyJake switch only activates the low side of the exhaust brake system, even though the switch is supposed to support both high and low settings. This issue may be caused by incorrect wiring or incompatibility with the truck’s control system.
Solution:
Check the wiring connections to ensure that the EasyJake switch is correctly spliced into the clutch pedal switch circuit. If the wiring appears to be correct, test the switch with a multimeter to verify that it is functioning as intended. In some cases, replacing the switch with a different model may be necessary to achieve the desired functionality.
Issue 2: Exhaust Brake Does Not Disengage
If the EasyJake switch is activated but the exhaust brake does not disengage, it may indicate a problem with the wiring or the truck’s control system.
Solution:
Use a multimeter to test the circuit and ensure that the EasyJake switch is correctly interrupting the clutch pedal signal. If the circuit appears to be intact, check the truck’s diagnostic system for any error codes related to the exhaust brake or clutch pedal switch. In some cases, a software update or calibration may be required to resolve the issue.
Issue 3: Cruise Control Does Not Cancel
If the EasyJake switch is used to cancel cruise control but the cruise system remains active, it may indicate that the switch is not correctly wired into the clutch pedal circuit.
Solution:
Verify that the EasyJake switch is wired in series with the clutch pedal switch. If the wiring is correct, test the cruise control system independently to ensure that it is functioning properly. In some cases, recalibrating the cruise control system or adjusting the wiring may be necessary.
Safety and Compliance Considerations
While the EasyJake system is a popular modification among diesel truck operators, it is important to consider safety and compliance requirements. The installation of any aftermarket device should be done with care to ensure that it does not interfere with the truck’s normal operation or safety systems. In particular, modifications to the clutch pedal switch circuit can affect the truck’s ability to detect when the clutch is engaged, which may have implications for other systems such as cruise control and automatic transmission shifting.
Manufacturer Warnings and Guidelines
Although the EasyJake system is not officially endorsed by truck manufacturers, it is important to follow any warnings or guidelines provided in the truck’s manual. Some manufacturers may caution against modifying the clutch pedal switch circuit, as it can potentially void warranties or lead to unexpected behavior in the truck’s control systems.
Legal and Regulatory Compliance
Depending on the state or region, there may be legal requirements for modifications to vehicle control systems. It is important to ensure that the EasyJake system does not violate any local or federal regulations related to vehicle safety or emissions. In some cases, modifications may require certification or approval from regulatory agencies such as the National Highway Traffic Safety Administration (NHTSA).
Conclusion
The EasyJake exhaust brake switch offers a convenient and effective way to control an engine’s exhaust brake system without the need to engage the clutch pedal. By splicing into the clutch pedal switch circuit, the EasyJake system allows for independent activation of the exhaust brake, providing greater flexibility and control for diesel truck operators. Based on user experiences shared in trucking forums, the installation process is relatively straightforward, and the system has been reported to function reliably in a variety of truck models.
While the EasyJake system is not officially endorsed by manufacturers, it has gained popularity among truckers due to its ease of use and practical benefits. However, it is important to approach installation with caution and to follow safety and compliance guidelines to ensure that the system does not interfere with the truck’s normal operation. By understanding the wiring requirements and operational characteristics of the EasyJake system, users can make informed decisions about whether it is a suitable modification for their vehicle.