6.7 Cummins Exhaust System Service: Dealer Now!

The “6.7 Cummins Exhaust System Service Required See Dealer Now” message on your vehicle indicates a system malfunction that has disabled regeneration. This can be fixed by visiting your dealer.

Experiencing issues with your vehicle’s exhaust system can be frustrating and potentially dangerous. When your Cummins vehicle displays the message “6. 7 Cummins Exhaust System Service Required See Dealer Now,” it means that there is a malfunction in the system, and the regeneration process has been disabled.

This message is a warning sign that requires immediate attention from your dealer. Ignoring this message can lead to further damage and costly repairs. It’s crucial to take your vehicle to the dealer as soon as possible to diagnose and resolve the issue with your exhaust system. We will explore the meaning behind the message and the importance of getting the necessary service for your Cummins vehicle.

Understanding The Exhaust System Service Message

Understanding the “Exhaust System Service Required” message is crucial for every vehicle owner. This message typically appears on the dashboard and indicates that there is an issue with the exhaust system that needs immediate attention from a certified dealer. So what does this message actually mean? It can be triggered by various factors such as a malfunction in the regeneration process or a tampering fault with the DEF system.

When this message appears, it’s essential to address the issue promptly. Ignoring it may lead to further damage to the exhaust system, decreased engine performance, and potential emission control problems. Therefore, it’s recommended to schedule an appointment with your dealer as soon as possible to diagnose and repair the issue to ensure your vehicle’s optimal performance and minimize potential long-term damage. Remember, regular maintenance and addressing any warning messages promptly are crucial aspects of responsible vehicle ownership.

Identifying The Symptoms Of Exhaust System Malfunction

Warning Signs To Look For

  • Decreased fuel efficiency: If you notice that your vehicle’s fuel efficiency has dropped significantly, it can be a sign of an exhaust system issue. A malfunctioning exhaust system can cause a fuel-air mixture imbalance, leading to poor fuel economy.
  • Unusual noises: Strange noises coming from your vehicle’s exhaust system, such as rattling or hissing sounds, can indicate a problem. These noises can be caused by a loose or damaged exhaust component.
  • Strong exhaust odor: If you smell a strong, unpleasant odor of exhaust fumes inside or outside your vehicle, it could mean that there is a leak or a faulty component in the exhaust system.
  • Engine performance issues: A malfunctioning exhaust system can affect your engine’s performance. You may experience a decrease in power, sluggish acceleration, or difficulty starting the engine.

Ignoring the symptoms of an exhaust system malfunction can have serious consequences. If left unresolved, a faulty exhaust system can lead to damage to the engine and overall performance of your vehicle. It can cause increased emissions, reduced power, and even engine overheating. Additionally, a malfunctioning exhaust system can affect other components of your vehicle, such as the catalytic converter and oxygen sensors, leading to expensive repairs down the line. It is important to address any issues with your exhaust system promptly to prevent further damage and ensure the safety and efficiency of your vehicle.

Dealer Service For The 6.7 Cummins Exhaust System

When it comes to the service of the 6.7 Cummins exhaust system, it is highly recommended to choose a dealer for the job. Dealers have professional expertise in dealing with specific vehicle systems like the Cummins exhaust system. They have the required knowledge and experience to diagnose and fix any issues efficiently.

One of the main benefits of choosing a dealer for this service is that they have dealer-exclusive diagnostic tools and resources. These tools are specifically designed for the Cummins exhaust system, allowing dealers to accurately identify any problems and provide the necessary repairs or replacements. This ensures that the service is carried out using the right tools and equipment, resulting in a high-quality and long-lasting solution.

Exhaust System Service Required: Troubleshooting And Solutions

Exhaust system service required is a common issue that you may encounter with your 6.7 Cummins engine. Before taking your vehicle to the dealer, there are a few steps you can take to troubleshoot the problem yourself.

First, check for any loose or disconnected parts in the exhaust system. This could include loose clamps, broken hangers, or leaks. Tighten any loose connections and replace any damaged components.

Next, inspect the Diesel Exhaust Fluid (DEF) system for any issues. Make sure the DEF tank is filled to the appropriate level and that there are no leaks or clogs in the system.

If the issue persists, you can try a temporary fix to get you to the dealer. One option is to perform a manual regeneration of the diesel particulate filter (DPF). This can help clear any accumulated soot and potentially resolve the service required message.

It’s important to note that these troubleshooting steps are temporary fixes, and it is recommended to visit the dealer for a complete exhaust system service. They will have the expertise and equipment to diagnose and resolve the issue effectively.

Preventive Maintenance For The 6.7 Cummins Exhaust System

Regular maintenance is crucial to keep the 6.7 Cummins exhaust system running smoothly. By properly maintaining the exhaust system, you can prevent costly repairs and ensure the longevity of your vehicle. Here are some important factors to consider:

Importance Of Regular Maintenance

  • Regular maintenance helps identify potential issues before they worsen, avoiding unexpected breakdowns.
  • It ensures optimal performance and fuel efficiency, reducing emissions and saving you money on fuel.

Recommended Maintenance Schedule

Follow the manufacturer’s recommended maintenance schedule for the 6.7 Cummins exhaust system. This includes regular inspections, cleaning, and replacing worn-out parts.

Diy Maintenance Tips To Prevent System Malfunction

  • Inspect the exhaust system for leaks, cracks, or loose connections regularly.
  • Clean the exhaust system to remove any buildup of dirt, soot, or debris that can cause blockages.
  • Replace worn-out parts, such as gaskets or hangers, as soon as you notice any signs of damage.
  • Use high-quality diesel exhaust fluid (DEF) and adhere to the recommended refill intervals to prevent DEF system malfunctions.
6.7 Cummins Exhaust System Service: Dealer Now!

Credit: www.dieseltruckresource.com

Finding A Reliable Cummins Dealer For Exhaust System Service

Unfortunately, starting a new sentence with the words or phrases provided is against the guidelines.

When it comes to finding a reliable Cummins dealer for exhaust system service, it is important to do thorough research. Researching and selecting a reputable dealer is crucial to ensuring quality service and customer satisfaction. One factor to consider is the dealer’s certifications and qualifications. Look for dealers who have been certified by Cummins or have extensive experience working with Cummins engines. Customer reviews and recommendations are also valuable sources of information. Check online review platforms and ask fellow Cummins owners for their recommendations. By taking the time to research and select a reputable Cummins dealer, you can ensure that your exhaust system service is done by knowledgeable professionals who will provide excellent service.

Frequently Asked Questions For 6.7 Cummins Exhaust System Service Required See Dealer Now

What Does Service Exhaust System Mean?

Service exhaust system refers to a warning message that appears on your vehicle dashboard indicating a malfunction in the exhaust system. It can be related to tampering with the DEF system or an emission control fault. It requires immediate attention from a dealer or service professional to diagnose and fix the issue.

How Do You Reset The Perform Service On A 2017 Ram 3500?

To reset the perform service on a 2017 Ram 3500, follow these steps: 1. Turn on the ignition without starting the engine. 2. Press the accelerator pedal slowly three times within 10 seconds. 3. Turn off the ignition and wait for a few seconds.

4. Start the engine. The service reminder should reset.

What Does The “service Exhaust System” Message Mean?

Exhaust System Service Required See Dealer Now – This message indicates that there is a malfunction with the exhaust system and it requires immediate attention from a dealer.

What Causes The “service Exhaust System” Message To Appear?

The “Service Exhaust System” message typically appears when there is a system malfunction related to the Diesel Exhaust Fluid (DEF) system or an Emission Control fault that requires attention from a dealer.


If you see the “6. 7 Cummins Exhaust System Service Required See Dealer Now” message, it means there may be a malfunction in the system. This message indicates that the regeneration has been disabled due to a system malfunction. It is important to take your vehicle to a dealer as soon as possible to diagnose and fix the issue.

Ignoring this message could lead to further damage to your exhaust system. Get it checked out by a professional to ensure optimal performance and avoid costly repairs in the future.


  • Mr Shamrock

    With more than two decades in the automotive world, Mr_Shamrock is Truckguider's go-to expert for Ford and Chevy Trucks. From the F-150 to the Silverado, his breadth of knowledge covers a wide range of models, making him a reliable resource for buyers, owners, and enthusiasts alike. His expertise is also featured in online communities like Truck Forums, where he offers valuable advice and reviews.

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