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Paul Merolla · 04-20-2010, 01:47 PM

Every time I've seen that happen, it's ended up being a vacuum leak...one time it was the wrong gasket between the throttle plate and carb body, one time a bad PCV valve, another time worn out throttle shaft bushings, etc., but all vacuum leaks just the same.

04-20-2010, 01:47 PM	#2
Paul Merolla Senior Member Join Date: Dec 2001 Location: Papillion, NE Posts: 611 Likes: 243 Liked 293 Times in 65 Posts	Re: Carb. Question Every time I've seen that happen, it's ended up being a vacuum leak...one time it was the wrong gasket between the throttle plate and carb body, one time a bad PCV valve, another time worn out throttle shaft bushings, etc., but all vacuum leaks just the same.