02
Oct
Vw Vacuum Pump Leaking Oil. See all problems of the 2007 Volkswagen Jetta. - Volkswagen Beetle question. I noticed that the oil was leaking out of the back of the vacuum pump running down the wiring harness and dripping on the top of the oil pan. Hey all my jetta is currently at the vw dealer receiving some unrelated electrical work.
The vacuum pump sounds weak. If you notice oil is dripping from the left or right side of your engine it may be coming from the vacuum pump. If you cant get it tested and are sure there are no system leaks all you can do is to change the pump. When the 25l vacuum pump fails it will cause an engine oil leak. 25 Vacuum pump used. I would start with a leak test using a hand operated vacuum pump which you wont have and then I would measure the vacuum using a vacuum gauge which you wont have.
The vacuum pump requires oil to maintain proper lubrication and to reduce internal temperature due to its frequent use.
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