ManwithSupra Posted July 26, 2018 Share Posted July 26, 2018 Hi All, Trying to find the source of a small fluid leak on my PAS pump and noticed that the air control valve on the pump has two hose connections, only of which one is connected. I cant imagine this is the cause of the leak as only air should be in those lines however I just wanted to get a second opinion. Any help would be great. Quote Link to comment Share on other sites More sharing options...
ManwithSupra Posted July 26, 2018 Author Share Posted July 26, 2018 Quote Link to comment Share on other sites More sharing options...
evinX Posted July 26, 2018 Share Posted July 26, 2018 You pretty much answered your own question. Theres 2 vacuum lines and only 1s connected. Sort that first. Then clean and recheck for leaks. Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted August 2, 2018 Share Posted August 2, 2018 When the PAS pump loads up the valve opens and allows air to be bled into the plenum from in front of the throttle valve. I rebuild PAS pumps and supply new ones at a good price. I have a source for none Toyota ones that work well, unlike those on ebay that disintegrate internally more often than not, (but given their price it's probably not surprising.... ) Quote Link to comment Share on other sites More sharing options...
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