Originally Posted by sailfish1982
I got no dash heat , hoses to heater core are not hot. Can someone inform me how to fix ? Is there a valve somewhere
On my Cummins 5.9 in my 2000 Bounder there are two valves which control coolant flow up front to the heater core.
One is on top of the engine by the valve cover, accessed from under the bed.
The other valve is under the engine on the drivers side near the oil filter.
Both have handles that look like the standard garden hose valves on a house.
Open both of those and your heat should return.