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Changed the pcv valve. It fixed my p171 code on my 2001 escort. Have to get the PVC valve from the Ford place. They are the only one that carry the right one.

PCV valve is available at AutoZone part # PCV 1001 for 2001 Escort SOHC 2.0L

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Q: In your 2001 Ford Escort the check engine light came on P 171 and fuel filter was changed as well a vacuum leak was fixed and a tuneup done but for the third time light and code came on what to do?
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