FORD Explorer Crankcase ventilation system repair
Engine, Fuel & Emissions system·2003–2005 · FORD repair guide
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Crankcase ventilation system repair
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FORD Explorer — What to know
The Explorer is Ford's mid-size SUV with a broad service network. The 3.5 EcoBoost V6 (2011–2019) is the most popular engine and is generally reliable. Known issues include cabin exhaust fume intrusion on 2011–2017 models and carbon buildup on EcoBoost direct injection engines.
What is this repair?
Plain-English overview
The PCV (positive crankcase ventilation) valve routes blow-by gases from the crankcase back into the intake to be burned rather than vented to atmosphere. A stuck or clogged PCV valve causes oil leaks, rough idle and increased oil consumption.
Warning signs
How to tell your FORD Explorer needs this repair
- Rough or fluctuating idle
- Oil leaks from gaskets or seals (increased crankcase pressure)
- Increased oil consumption
- White or grey smoke from the exhaust under certain conditions
- Check engine light with lean or vacuum-related codes
Common causes
Why FORD Explorer vehicles need this repair
- 1.Normal component wear over high mileage
- 2.Oil maintenance quality and adherence to change intervals
- 3.Operating temperature and thermal cycling over time
- 4.Age degrading seals, gaskets and rubber components
What affects the price
Why your quote may differ
- PCV valve location (some are integrated into the valve cover, making them more expensive)
- Whether associated hoses and the breather filter also need replacing
- Diesel-specific crankcase systems may differ significantly
At a glance
Key facts about this repair
Labour time
1–4 hours
at a typical garage
DIY difficulty
Moderate
Risks of ignoring this
What happens if you delay
- A minor issue becoming a significantly more expensive repair if ignored
- Secondary damage spreading to related components
- Possible roadside breakdown or sudden failure
- Failed roadworthiness inspection or MOT
Full repair guide
Everything you'd want to ask a trusted mechanic
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Get the exact price for your FORD Explorer
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Estimates in seconds · Always confirm with a qualified mechanic
Example estimate
Crankcase ventilation system repair
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