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hello,have a question the air management valve on the back of the pullution pump the car has to be at normal operating tempature for it to suck air through it for the vacum line that runs off of it? because right now i can not feel it sucking no air, the line that runs off the pelium is getting vacum to the solenoid on the fender well but i am not getting any vacum to my egr valve i need help i am trying to get nox fixed so i can pass the echeck thank you
 

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Remove any valves you can and blast them with some carb or brake cleaner. Don't spray inside the pump- there are bearings in there that really need to remain lubricated. Try swapping out the vacuum hose, too- original hose can be hard and brittle and crack in places you can't see/reach.
 
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