Rick's Free Auto Repair Advice

P0171 on Ford Focus

Fix code P0171 on Ford Focus

Fords are notorious for P0171 vacuum leaks. This model is now different. It’s hard to find a P0171 leak on these newer cars because of the plastic intake manifolds. The whooshing sound is conducted by the plastic manifold, making it harder to listen for a leak. However, the most common failure on these vehicles is the positive crankcase ventilation (PCV) hose or the PCV elbow. That should be the first thing you check/replace.

 

© 2012 Rick Muscoplat

Posted on by Rick Muscoplat

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