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Installing the CCV (Crankcase Ventilation) filter on the 6.7 Cummins engine is a crucial maintenance task. However, users often encounter common issues in practice.

Through a thorough analysis of user experiences, we explore the rationale behind the CCV reroute kit as a solution, providing supporting evidence.

Why Choose to Maintain the CCV Filter?

CCV System Issues

User experiences indicate that unusual oil smoke odor and observed oil or oil mist spray when removing the fuel cap are potential indicators of CCV system problems.

These symptoms may suggest severe blow-by issues that require prompt attention.

The primary goal of the CCV filter is to capture oil mist from the engine blow-by, preventing it from entering critical components such as the turbocharger and intake, thereby preserving engine performance.

Users actively engage in proactive preventive maintenance, such as changing brake fluid and power steering fluid, with these experiences being validated by other forum users.

Cleaning and replacing the CCV filter are deemed essential tasks.

What is the Specific Process of Deleting the CCV Filter and Venting to the Atmosphere?-1

During the cleaning process, users draw conclusions based on experience:

1.Emphasis on removing adhesive to avoid engine oil contamination.

2.Cleaning the filter can extend its lifespan, reducing the frequency of replacements.

3.Removing Aggregated Filter Media

Some users suggest removing aggregated filter media as a solution. For instance, a user provided an example where a new filter triggered a CCV filter restriction code after only 20,000 kilometers. This led many users to prefer removing the aggregated filter media instead of replacing the entire filter.

For details, visit: CCV Filter Gutting

ome users share experiences of successfully cleaning and reusing CCV filters after 50,000 miles, while others opt for replacement when the filter becomes heavily loaded at 60,000 miles.

However, many users, based on their experiences, prefer more frequent replacements (every 40,000 miles) and consider the cost of a new CCV filter (approximately $70-$100) justified for the benefits it provides within a certain mileage.

For further details, refer to: CCV Filter Replacement

What is the Specific Process of Deleting the CCV Filter and Venting to the Atmosphere?-2

Why Choose to Delete the CCV Filter?

Users express concerns that a dirty CCV filter might lead to turbocharger failures and expensive repairs. Deleting the internal filter is seen as a way to eliminate potential failure points and prevent pressure buildup or clogging.

Alternative Solution - CCV Reroute

CCV reroute has proven to be an effective alternative, reducing maintenance costs and maintaining a clean engine environment.

It not only eliminates blow-by coating issues on the turbocharger and intercooler but also eliminates the need for CCV filter replacement.

1.Deleting the CCV filter and venting to the atmosphere.

2.Removing the CCV filter and rerouting the CCV line to the frame.

The goals of both approaches are to reduce or eliminate CCV system oil mist emissions in the engine compartment, minimizing potential impacts on the engine and other components.

While these methods are similar, they are not entirely identical.

What is the Specific Process of Deleting the CCV Filter and Venting to the Atmosphere?-3

What is the Specific Process of Deleting the CCV Filter and Venting to the Atmosphere?

This typically involves redirecting the ventilation port of the CCV system to discharge oil mist directly into the atmosphere without passing through a filter.

Some users suggest adding a venting tank when deleting the CCV filter to prevent any oil residue under the truck, emptying the tank during every oil change to avoid overfilling.

Others mention extending the exhaust hose downwards to the bottom of the engine without encountering any oil residue.

The presence of oil residue may indicate excessive blow-by, signaling potential engine issues.

Most users prefer the former method, emphasizing proactive prevention. They believe the venting tank should have a capacity ranging from 7-9 ounces to 1 quart.

Users share their setups, such as using a vacuum pump on high-performance vehicles and observing less than an ounce of oil after driving 1-2000 miles.

What is the Specific Process of Deleting the CCV Filter and Venting to the Atmosphere?-4What is the Specific Process of Deleting the CCV Filter and Venting to the Atmosphere?-5

Users question whether emitting to the atmosphere might have adverse effects?

The majority affirm that atmospheric emission is common and can be done without triggering codes or affecting performance.

Emitting CCV to the atmosphere does not cause issues with sensors or the ECM.

Changing CCV configuration does not negatively impact the turbocharger, and there is no need to worry about excessive blow-by.

Users prefer keeping the system in its stock configuration or using a catch can.。

In conclusion, based on shared user experiences, deleting the CCV filter and venting to the atmosphere is considered a viable option that does not negatively impact engine performance.

For more details, visit: CCV Filter Delete - What Size Vent Tank

What are the Specific Steps for Removing the CCV Filter and Rerouting the CCV Line to the Frame?

Users share their experiences with removing the 6.7L crankcase filter through DIY modifications, separating the filter housing, cleaning internal filter components, and reassembling it under the valve cover to achieve CCV reroute.

Some provide more convenient summaries, simplifying the CCV reroute process.

What is the Specific Process of Deleting the CCV Filter and Venting to the Atmosphere?-6

CCV Reroute Categories

  1. DIY Approach: Users can design and adjust the layout of the CCV system themselves, including changing pipes, adding new connectors, and relocating the CCV line to the vehicle's frame or chassis.

This method may require more customization, be relatively complex, and, most importantly, necessitate user expertise, as adjustments need to align with the vehicle and preferences.

2.CCV Reroute Kit: This is a commercially available product, usually including redesigned connectors, pipes, and possible accessories designed to alter the CCV system layout.

The goal of CCV reroute kits is to reduce or avoid oil mist accumulation in the engine compartment by moving the emission point to the vehicle's bottom or another location away from the engine bay.

These kits are designed to simplify installation and provide a set of pre-designed components. CCV reroute kits are typically available at SPELAB stores for various engine models, such as the l5p delete kit,with prices ranging from $36-$329.

In summary, CCV reroute kits generally offer a more standardized and simplified solution, while removing the CCV filter and rerouting the CCV line to the frame may require more user customization.

When choosing a method, users should balance their technical expertise, budget, and expectations for system changes.

What is the Specific Process of Deleting the CCV Filter and Venting to the Atmosphere?


Through an in-depth analysis of user experiences and relevant evidence, CCV reroute kits emerge as a well-supported solution to address CCV filter 6.7 Cummins issues.

This choice not only resolves common installation and maintenance problems but also garners positive reviews within the user community.

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