Posted by Dan (NH) [173.245.54.67] on Tuesday, March 01, 2016 at 08:48:30 :
In Reply to: what posted by clueless [108.162.213.203] on Sunday, February 28, 2016 at 22:07:44 :
Used to create more vacuum so the wipers will work when the vehicle starts to go under a load and manifold vacuum dwindles a little.
Not really a pump in my eyes, although they did make vacuum pumps that ran off electricity. At that point though, why not just change the wiper motor.
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