The magnum is fine but my 3.1L '96 Buick has an EGR issue I can't figure out, and dont want to spend a fortune fixing. Does anyone know why there would be a moisture/water buildup in the port running from the valve to the intake?? I have removed a carbon blockage in the port and can blow air through. Drive for a while and the water is back, I think blocking flow, hence the engine light. Is there a good means of clearing this passage (a wire will not go through, I dont think its a straight shot) Any chemicals??? HELP HELP PLEASE.