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Does your vacuum pump sound like this? - compression test / vaccum pump - VIDEO
I'm checking the compression in all my cylinders. While under the hood, I've noticed the vacuum pump makes a distinct "honk honk honk" sound. I changed it out with a Cardone Re-manufactured pump, this one: http://shop.advanceautoparts.com/web...rm=vaccum+pump
...the sound is still occurring.
Does everyone else has this issue or is it normal? Do I need to buy a OEM pump instead?
Here is a video performing my compression test; you can clearly hear the vacuum pump.
Any help is greatly appreciated. Thanks, E