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Jakg · 10th February 2011, 19:28

I highly doubt a loss of vacuum would cause the engines RPM to drop, when the brakes aren't connected to the engine as it's out of gear.

10th February 2011, 19:28	#4
Jakg This is my second home N/A Join Date: Feb 2010 Location: Suffolk Posts: 6,867 Thanks: 0 Thanked 397 Times in 302 Posts	I highly doubt a loss of vacuum would cause the engines RPM to drop, when the brakes aren't connected to the engine as it's out of gear.