After replacing EGR, DPFE sensor, cpv valve, I have checked all vacuum lines and elbows and found no leaks. I am going to pull the intake manifold off and clean the EGR ports. What I don't know is if there is enough room on my van to get the intake manifold off. I also wonder if I need to take both upper and lower intake manifolds off to clean the EGR ports. Any help would be appreciated.
Bobalua