Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
System Testing
Check PCV hose, grommet, breather hoses, and connections for cracks, damage, deterioration, and obstructions. Ensure that all connections are tight.
With engine idling, remove PCV valve from breather chamber (from valve cover on Accord). Listen for clicking noise while blocking and unblocking end of PCV valve with finger. If no clicking noise is heard, replace PCV valve and retest.
Inspect blow-by filter and replace if it is clogged with dirt and dust, or if it is stuck and dripping oil.
NO RELATED
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.