Hello again, I found a clogged tube on the side of the egr valve when I was inspecting it, so I removed the egr valve, and cleaned it with carb cleaner and brushes. I also checked and cleaned the different hoses one by one, and the egr modulator I opened and blew out the filter, and then put it all back together. My check engine light has not come back on, but I read that to do a check that you remove the hose from the top of the egr valve and hook up a hand vacuum pump and that when it opens, the engine should hesitate or stall and if it doesnt that it is no good and needs to be replaced. I did that and nothing happened, so my question is, is that test true and or accurate?
Thursday, January 19th, 2012 AT 3:26 AM