EGR Valve Clean Flow Diagram - Dodge Cummins Diesel Forum

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Old 11-12-2009, 02:53 PM   #1 (permalink)
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EGR Valve Clean Flow Diagram

When the dealer *cleans* the EGR is it the valve or the entire cooling unit? And by blocking/Removing the EGR Cooler have any effects on the Exhaust Brake? When I first used the exhaust brake I could barly hear it, towed a 10k lb trailer every time I used the truck, now have been using the truck for 1000 miles without trailer and exhaust brake sounds louder? Is this caused by soot buildup.
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Last edited by supersharki; 11-12-2009 at 03:02 PM.
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Old 11-13-2009, 12:30 AM   #2 (permalink)
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As per chrysler they now only clean the valve and cross over tube. We used to clean the whole thing, and if a customer requests it and is willing to pay for it, we will still clean the entire EGR system. I wish I had a camera at work, you can eat off my EGR clean outs :P As for the exhaust brake, EGR blocking will have no effect on it. The newest flash seems to be pretty aggressive with the exhaust brake. Every one that I have done seems to really wake the brake up.
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Old 11-13-2009, 12:06 PM   #3 (permalink)
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Looks like you know your 6.7l engines, what exactly does the EGR valve do, open and close under certain conditions, and does it stay closed when the exhaust brake is on?
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