Exhaust brake

[Badgerx]

Old topic im sure but need y'all non the less. I have a 2007 w9 with a 500 hp cm870. Truck had 1.4 million miles and the engine has roughly 900k. Its all intact emissions wise and egr valve is 4 months old. Truck runs fine no major issues but my Jake! I have had a cam replaced (1 not both) a good over head ran, new harness under the valve cover and the Jake harness on the outside. I replaced both switches in the cab. I can hear them come on but they don't do anything at all. My oil pressure is around 35 and oil temp around 200-225 depending on if im in PA or AZ lol. I average 4.8- 5 mpg and do my PMs every 12-15k miles. Not sure what other info y'all would need but ill provide what you ask for. [/size]