Quote:
Originally Posted by BR3W CITY
^correct, that diagram was the only thing I could find lol, my LQ4 repair manual doesn't have a vacuum diagram, wtf.
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Probably doesn't have a diagram because there are no vacuum lines on some trucks. If it's returnless fuel rail it wont have a vacuum line to the fuel pressure regulator, and if it had hydroboost then no vacuum power brake hose. What others are there? All HVAC are electric servos now too so nothing there. We've come a long way since the 80's when there was about 6 miles of vacuum hose on a car! Lol
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