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Vacuum Harness/Vacuum Pump 1

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Avi586

Automotive
Nov 14, 2010
1
Could anyone advise me how vacuum harness and vacuum pump works with bypass valve/EGR valve?

i have been asked to start a new project on Vacuum Hose but i am not familiar with this subject could any expertise advise me or guide me please



 
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um, we might need a better starting point than that. what _do_ you know? what are you trying to do?

Some EGR valves are vacuum actuated - they have a diaphragm which is exposed to manifold vacuum on one side and air on the other. Vacuum hoses connect from the manifold to a solenoid, and then from the solenoid to the valve. When the solenoid opens, the vacuum sucks on the diaphragm and opens the valve to let EGR into the intake manifold.

 
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