Quote:
Originally Posted by HYMER DAVE
just checked vacuum pump and is reading 24" pressure, a good reading from what I can see,the problem is the gauge took 20 seconds to get there.
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Did you check the vacuum directly at the pump? If so, then you might have a problem with the check valves inside the pump. Mine would read instantly.
The VCV is adjustable. If it is all the way closed, you should get full vacuum with the handheld pump. There is a thin rubber diaphram inside the vcv. Spraying it with brake cleaner is not a good idea. That is just my opinion. I believe the VCV is NLA.