Hi, I am planning on replacing the EGR valve on my Venture. The part came with instructions to clean the intake manifold before intalling the valve, to prevent repeated failures. How do I go about doing this? With a vaccum, or by scraping with a screwdriver, or some other method? Thanks!
Replacing EGR Valve on 2001 Chevrolet Venture
by kurkevan in Lakewood, NJ on August 16, 2009
ANSWER by dandd on August 16, 2009
You can spray some carb cleaner in the EGR passages and then use a shop rag to wipe out the passages, though sometimes you have to remove the manifold ( in severe cases ) and clean it out. Some GM manifolds get really carboned up and cause repeated EGR problems, especially on the 4.3 liter V6, at least in my experience.