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International Automotive Technicians Network
Re: VW GTI intermittent loss of crankcase vacuum
Posted to Technical Discussion Forum on 1/14/2021

Injectors unplugged, T8 plug just under the intake manifold on the driver's side. Battery charger connected. Wide open throttle. Compression check. If you have more than a 10% variance, perform a cylinder leak down test. This will cover any engine damage or ex... Login to read more.