m38a1 Posted September 6, 2016 Share Posted September 6, 2016 Hi, My fire dept has a 1983 Mack ladder truck with an inline 6, 675 CID, the engine brake comes on electrically but does not slow the truck at all. I can hear a change in the exhaust when I toggle switch on and off. Can you give me sugestions on trouble shooting Please and Thank You Quote Link to comment Share on other sites More sharing options...
alex g Posted September 6, 2016 Share Posted September 6, 2016 Possibly need valves adjusted. Your engine brake and valves work together and if there out of adjustment it will affect it. Sent from my SM-G386W using Tapatalk Quote Link to comment Share on other sites More sharing options...
Swishy Posted September 6, 2016 Share Posted September 6, 2016 Try the engine brake in 1st gear They should slow much the same way they accelerate cya Quote Link to comment Share on other sites More sharing options...
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