1999 cummins 5.9 Jake brake
I have a 1999 Discovery with the cummins 5.9 and Allison 3000 6 speed automatic and what is labeled as a Jake brake. Last trip with no warning the brake quit working. I am not familiar with exhaust ...
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My exhaust brake is very accessible in the engine compartment of my 94 Bounder with the 5.9 cummins. Mine has a small air compressor with a solenoid and an air line going to the valve on the exhaust pipe right after the turbocharger. I have a switch in the dash to activate or turn off.
If mine stopped I would first look at the voltage supplying the solenoid, check the air line, physically check for free movement at the valve and ensure switch is good. It is also connected to the transmission and there is a wire that connects both. Hope that is a start. Doug
If mine stopped I would first look at the voltage supplying the solenoid, check the air line, physically check for free movement at the valve and ensure switch is good. It is also connected to the transmission and there is a wire that connects both. Hope that is a start. Doug
