2001 cougar 2.5ltr v6, engine idles rough changed wires,plugs, MAF, scan shows lean P0171; can't find PVC valve, what do you think? Low power in...

Hello and welcome to ExpertHelp.com! My name is Relly De Jesus and I'm going to do everything in my power to answer your question to your full satisfaction!

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Hello Oneal

How are you doing? Below is the PCV valve's location

The PCV valve can dramatically change how the car runs Oneal but if replacing it doesn't resolve the issue. You may need to replace the valve lifters or have the camshaft roller check for damage which can cause the issue. Hope that the pcv replacement resolves the issue. Hope this helps and please let me know if there's anything else I can add or help you with. I'll be standing by for your response.

Thank you

Relly

Hi Oneal

How are you doing? This is a follow up regarding my assistance. Is there anything else I can add or help you with? Let me know if it's been helpful and please keep me posted on the progress. I'll be waiting for your response.

Thank you

Relly

Hi Oneal

How are you doing? This is a follow up regarding my assistance. Is there anything else I can add or help you with? Let me know if it's been helpful and please keep me posted on the progress. I'll be waiting for your response.

Thank you

Relly

Hi Oneal

How are you doing? This is a follow up regarding my assistance. Is there anything else I can add or help you with? Let me know if it's been helpful and please keep me posted on the progress. I'll be waiting for your response.

Thank you

Relly

Hi Oneal

How are you doing? This is a follow up regarding my assistance. Is there anything else I can add or help you with? Let me know if it's been helpful and please keep me posted on the progress. I'll be waiting for your response.

Thank you

Relly

Dear Oneal, It was a pleasure helping you with your Mercury issue today. Here is a summary of the resolution.

Issue identified : Rough idle
Solution Implemented : PCV valve replacement. Provided picture and location of the PCV valve. Solution Accepted
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