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Yes, you can clean the PCV valve. Take off the PCV valve and get a spray can of carb cleaner. Just spray into the valve and just enough to clean out any gunk that might be in there. You should hear it rattle when you shake the valve.

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โˆ™ 2015-07-15 18:46:44
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Q: Can you clean the PCV valve on a 1991 Chevy Silverado Diesel 6.2 Liter or do you have to replace it with a new one?
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