Where is pvc valve located on 1999 BUICK lesabre and how do you install. 3.8
have the same problem?
Friday, April 15th, 2011 AT 9:37 PM
It is at the very end of upper black intake plenum, passenger side, there is a MAP sensor mounted on top of the housing, unplug MAP sensor, rotate 1 inch to unlock, pull cover up and off, use needle nose pliers to grab pcv valve, dont forget to install new o-ring on new pcv valve.