How To Do Regen On Freightliner Automatic?

How to Do Regen on a Freightliner Automatic

If you drive a Freightliner truck with an automatic transmission, you may have heard of the term “regen.” Regen, short for regeneration, is a process that helps to clean the diesel particulate filter (DPF) on your truck. The DPF traps harmful soot particles from the exhaust, and regen helps to burn off those particles so that they don’t build up and damage the filter.

Regen is a necessary process for maintaining your DPF, but it can also be a bit confusing. In this article, we’ll walk you through the steps of doing a regen on a Freightliner automatic truck. We’ll also explain what regen is and why it’s important.

So if you’re ready to learn how to do a regen on your Freightliner automatic truck, keep reading!

Step	Action	Notes
1	Depress the cruise control stalk.	This will put the truck into regen mode.
2	Accelerate to 55 mph.	The truck will begin to regen.
3	Maintain a speed of 55 mph for 5 minutes.	This will complete the regen cycle.

Diesel engines in Freightliner trucks use a process called regeneration to clean the diesel particulate filter (DPF). The DPF traps soot from the exhaust, and regeneration burns off the soot so that it can be released through the exhaust. Regeneration is a necessary process to keep the DPF working properly, and it should be performed according to the truck’s maintenance schedule.

This guide will show you how to do a regeneration on a Freightliner truck with an automatic transmission. The procedure is relatively simple, but it is important to follow the steps carefully to avoid damaging the DPF.

Prerequisites

Before you begin, you will need to gather the following materials:

• A Freightliner truck with an automatic transmission
• Diesel exhaust fluid (DEF)
• A clear area to perform the regen

Procedure

1. Park the truck in a clear area.
2. Turn off the engine and allow it to cool down.
3. Open the hood and locate the DEF tank.
4. Add DEF to the tank until the level is full.
5. Close the DEF tank and secure the cap.
6. Start the engine and allow it to warm up to operating temperature.
7. Shift the transmission to neutral.
8. Press the brake pedal and hold it down.
9. Press the regen button on the instrument panel.
10. The regen process will begin. The engine will run at a higher RPM and the exhaust will be blacker than normal.
11. The regen process will take several minutes to complete.
12. When the regen process is complete, the engine will return to normal operation.
13. Turn off the engine.

Regeneration is a necessary process to keep the DPF working properly. By following the steps in this guide, you can safely and effectively perform a regen on your Freightliner truck.

Additional Information

• If the DPF is too full, the regen process may not be able to complete. In this case, you will need to have the DPF cleaned or replaced.
• If the regen process does not complete successfully, you may need to have the truck diagnosed by a qualified technician.
• It is important to follow the truck’s maintenance schedule to ensure that the DPF is properly maintained.

Resources

• [Freightliner Website](https://www.freightliner.com/)
• [Diesel Exhaust Fluid (DEF) Website](https://www.dieselexhaustfluid.org/)
• [How to Do a Regen on a Freightliner Truck with an Automatic Transmission](https://www.youtube.com/watch?v=4m59-2-74-E)

How To Do Regen On Freightliner Automatic?

Regeneration, or DPF cleaning, is a process that removes soot from the diesel particulate filter (DPF) of a Freightliner truck. It is an important maintenance procedure that helps to keep the DPF functioning properly and prevents it from becoming clogged.

There are two ways to do a regen on a Freightliner automatic truck:

• Manual regen: This is the traditional method of regeneration, and it is done by driving the truck at a steady speed for a period of time. The regen will begin automatically when the DPF reaches a certain temperature.
• Forced regen: This is a newer method of regeneration that can be done at any time, regardless of the DPF temperature. It is done by using the truck’s onboard computer to command the DPF to regenerate.

In this article, we will discuss how to do a forced regen on a Freightliner automatic truck.

Step 1: Prepare the truck

Before you begin the regen process, there are a few things you need to do to prepare the truck:

• Make sure that the truck is in good working order. This means that all of the fluids are topped off, the tires are properly inflated, and the brakes are working properly.
• Park the truck in a safe location where it will not be disturbed for the duration of the regen process.
• Turn off all of the accessories, such as the radio, air conditioner, and lights.
• Put the truck in park and set the parking brake.

Step 2: Start the truck and let it idle for a few minutes

Once the truck is prepared, start the engine and let it idle for a few minutes. This will allow the engine to warm up and the DPF to reach a temperature where it can be regenerated.

Step 3: Shift the transmission to neutral

Once the engine is warm and the DPF is at the proper temperature, shift the transmission to neutral. This will allow the truck to idle without moving.

Step 4: Start the regen process

To start the regen process, you will need to use the truck’s onboard computer. The exact steps for starting the regen process will vary depending on the model of truck you have. However, the general steps are as follows:

1. Press the “Menu” button on the instrument cluster.
2. Use the arrow keys to scroll to the “Service” menu.
3. Press the “Enter” button.
4. Use the arrow keys to scroll to the “Regeneration” option.
5. Press the “Enter” button.
6. The truck will begin the regen process.

Step 5: Monitor the regen process

The regen process will take a few minutes to complete. During this time, you will need to monitor the truck to make sure that it does not overheat.

The truck’s instrument cluster will display a number of messages and indicators during the regen process. These messages and indicators will vary depending on the model of truck you have. However, some of the most common messages and indicators include:

• “DPF Regeneration in Progress”
• “Engine Coolant Temperature”
• “Engine Oil Temperature”

If the engine coolant temperature or engine oil temperature rises too high during the regen process, the regen process will be automatically aborted. If this happens, you will need to let the truck cool down before you can try again.

Step 6: Complete the regen process

Once the regen process is complete, the truck will display a message indicating that the DPF has been regenerated. You can then resume driving the truck as normal.

Regeneration is an important maintenance procedure that helps to keep the DPF of your Freightliner truck functioning properly. By following the steps in this article, you can easily perform a forced regen on your truck.

How do I do a regen on my Freightliner automatic?

1. Make sure your truck is in Park and the engine is running.
2. Press and hold the Regen button on the dash for 5 seconds.
3. The regen will start and you will see a message on the dash indicating that the regen is in progress.
4. The regen will take about 15 minutes to complete.
5. Once the regen is complete, you will see a message on the dash indicating that the regen is successful.

What does a regen do?

A regen regenerates the diesel particulate filter (DPF) by burning off the soot that has accumulated inside the filter. This is necessary to keep the DPF from becoming clogged and to prevent it from malfunctioning.

How often do I need to do a regen?

The frequency of regens will vary depending on your driving conditions. If you do a lot of stop-and-go driving or if you drive in dusty conditions, you will need to do more regens than if you do mostly highway driving. In general, you should do a regen every 5,000 to 10,000 miles.

What if I can’t do a regen?

If you can’t do a regen because your truck is not in Park or the engine is not running, you can try to do a forced regen. To do a forced regen, press and hold the Regen button and the Accelerator pedal at the same time for 5 seconds. The regen will start and you will see a message on the dash indicating that the regen is in progress.

What if I get a message on the dash that says “Regen Required”?

If you get a message on the dash that says “Regen Required”, it means that the DPF is clogged and needs to be regenerated. You can do a regen yourself or you can take your truck to a qualified diesel mechanic.

What are the signs of a clogged DPF?

The signs of a clogged DPF include:

• Reduced engine power
• Black smoke from the exhaust
• A check engine light on the dash
• A message on the dash that says “Regen Required”

If you notice any of these signs, it is important to have your DPF checked and cleaned or replaced as soon as possible.

performing a regen on your Freightliner automatic transmission is a relatively simple process that can help to extend the life of your transmission. By following the steps outlined in this article, you can safely and effectively perform a regen on your own, without having to take your truck to a mechanic.

Here are a few key takeaways to remember:

• Regens should be performed regularly, according to the manufacturer’s recommendations.
• The regen process can take several hours, so it’s important to plan accordingly.
• If you have any questions or concerns about performing a regen, consult your owner’s manual or a qualified mechanic.

By following these tips, you can help to keep your Freightliner automatic transmission running smoothly for many years to come.