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					Originally Posted by ThoR294  Vacuum leaks can be intermittent.  A gash in a hose might just need the right twist of the motor in order to spring a small leak.  Did you do a thorough check of all the vacuum lines?  Wiggle and spray lol |  True.. but then if it's stuck and I'm in neutral and do nothing but brake smoothly to a stop, why would it come all the way back down to a normal idle? 
 
I should also note on one occasion coasting on the highway at 60mph in neutral same thing happened BUT the rpms bounced between 2000-2300 which is odd.
		 
				__________________1997 Camaro Z28  - 355 LT1, T56, CC503, LTs, ORY, Bald Eagle-back exhaust, !emissions, Lingenfelter CAI, EWP, !CAGS, BMR LCAs, UMI PHB, Koni Str.t/Koni SA, C5 Z06 front / LS1 F-body rear brake swap, factory hurst with short stick   2014 2LT Cruze 2.0  Turbo Diesel |