Causes of CCV Filter Clogs
1) Constipation and Deposits
Over time, crankcase ventilation filters can become clogged with dirt, debris, and other debris. These particles build up and restrict airflow, causing the filter to lose its effectiveness in relieving pressure and filtering blow-by gases.
2) Faulty Seals and Seal Rings
A clogged CCV filter can be caused by damaged or worn seals and seal rings. These components are important for maintaining proper pressure levels in the crankcase and preventing oil leaks.
3) Vacuum Leaks
Vacuum leaks can also lead to a clogged crankcase filter. A leak in the vacuum system can cause the engine to run harder, idle irregularly, and crankshaft speed to increase. This situation can occur because a clogged or damaged crankcase filter restricts the airflow in the crankcase, causing a vacuum leak.
Prevention and Maintenance
Regular Inspection and Cleaning
Regularly inspecting and cleaning your crankcase breather filter is the best way to remove dirt, debris, and other debris that can cause blockages. Get into the habit of checking the filter during your vehicle’s scheduled maintenance, such as: A. When you take the time to change your oil or check your spark plugs. If it’s dirty or has visible damage, clean or replace it as needed.
Air Filter
The air filter plays a vital role in keeping your engine running cleanly and efficiently (including the breather filter). Inspect and replace as needed, typically every 12,000 to 15,000 miles or as recommended by your vehicle manufacturer.
Oil Collection Container
Installing an oil catch canister is a great preventative measure for your crankcase ventilation filter. The oil catch container acts as an oil separator, catching excess oil before it clogs the filter.
Collecting oil not only extends the life of your crankcase filter, but also improves the overall performance of your engine. Empty and clean your collection bin regularly to ensure it is always functioning properly. What does a defective crankcase ventilation hose indicate?
How often should I change my breather filter?In most cases, CCV filters should be changed every 50,000 to 125,000 miles. However, be sure to follow the specific maintenance recommendations for your vehicle as outlined in your owner’s manual.
For example, the official filter change interval for a 6.7L Cummins engine is 67,500 miles, but you should still monitor the condition of the filter and clean it when necessary.
Can a clogged breather filter cause engine damage? Yes, a clogged breather filter can cause engine damage. A clogged filter can restrict airflow and create vacuum leaks. Over time, this can lead to increased engine wear, oil leaks, and even engine damage.
