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Author Topic: Runs rough with air cleaner on  (Read 2198 times)

Offline boondocker

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Runs rough with air cleaner on
« on: June 25, 2013, 01:44:21 PM »
I rebuilt my quadrajet (from a '76 olds for a '72 cutlass rocket 355) 800cfm. I purchased Cliff's setup, ran excellent for some time now runs rough with the air cleaner on (runs as it should without air cleaner), this is a recent air cleaner K&N...it didn't need to be cleaned but I cleaned it. I don't suspect the air cleaner itself because it started running rough after I was fiddling with the carb...don't ask me what I did, as I don't remember. Any insights would be appreciated :)
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Offline boondocker

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Re: Runs rough with air cleaner on
« Reply #1 on: June 26, 2013, 03:14:08 PM »
Fixed the problem, removed the PCV valve and gave it a shake...appeared to be stuck. Works great now...thanks for all the feedback ;)
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Offline Cliff Ruggles

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Re: Runs rough with air cleaner on
« Reply #2 on: June 27, 2013, 04:52:55 AM »
PCV valves can be cleaned with brake or carb cleaner, they get gummed up sucking out all those crankcase vapors for many years.....Cliff
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