noise in engine when first sart it around air pump area

Asked by Jan 30, 2015 at 12:34 PM about the 2000 Lincoln Town Car Signature

Question type: Maintenance & Repair

it is a knocking noise on pass. side of car comes from around air pump for converter to cool it. first heard noise when i pulled pcv valve out to replace it.i put my finger over the pcv valve the noise goes away????? help!!!!       MIKE

2 Answers

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is there a pcv leak

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SORRY HAVEN'T BEEN ON COMPUTER FOR A FEW DAYS .PCV VALVE ISN'T LEAKING WHEN I REPLACED IT AND I HAD MY FINGER OVER THE OPENING ON END OF PCV VALVE AND I CUT THE AIR FLOW THE NOISE STOPPED.IT SOUNDS LIKE IT IS COMMING FROM THE AIRPUMP THAT COOLS THE CONVERTER??? THANK YOU FOR TRYING TO HELP MIKE

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