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Where is the pcv valve located for a 2003 buick Lasaber 3800 series ii motor?
Wiki User
∙ 11y ago
If you remove the 3800 series plastic cover, look to the left of the intake manifold directly in front of the alternator. You will see an electrical connection-this is the MAP sensor, which is clipped into place. Remove the MAP sensor by unclipping it and pulling it out, and then twist and remove the PCV valve cover right underneath the MAP sensor. The PCV valve is right underneath that cover. Pop it out and replace it, and put the PCV valve cover back on along with the MAP, and finally replace the 3800 series cover and you're good.
Wiki User
∙ 11y ago
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