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Cruise Control - Vacuum Switch Testing - Hose Routing--Pump Test
Posted by Garret Hurd [Email] (more from Garret Hurd) on Sun, 3 Jun 2001 17:09:52
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I am using a handheld vacuum pump w/guage to try and get the cruise control working on my 87 spg. I am not sure if the vacuum switch is good. (to be honest I dont know it's function). Anyway, the switch will not hold a vacuum. Applying any vacuum to the switch makes a ticking sound (switching on an off), and the vacuum bleeds off in about 2 seconds. Is it working properly? Is this a good way to test it?
--Hose Routing & Pump Test--
The vacuum pump has two ports. One (black plastic) is connected to the switch and the line that runs into the dash to the vacuum actuator. The other (white plastic) port is open. Should it be? The pump will not hold vacuum(tested by sucking with the handheld pump on the black port) unless I cover the white port with my finger. Is the pump good? I have applied power to the pump and it does develop vacuum on the black port.
Thanks to anyone who responds.
-G-
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