maybe the out-side bottom vent door is stuck ,sometimes the don,t open . try pushing it in an open position
we changed radaitor & thermastate , now heater blows cold air
There is no water valve.
you can also put your heater on defrost and this will also operate the fan. sorry this answer was for another question.
No
Yes
Could possibly be the Oxygen sensor. It happened on my old 1999 Dodge Ram Quad.
No, they do not interchange.
Top Left, There is an obvious heater hose running straight towrds it from the bottom left, it's a flat silver square.
Thermostat housing
1991-1993 Dodge pickup fuel filter/heater assembly for 5.9 diesel engine need part number and where can i buy filter assembly, mine is cracked and is leaking fuel on the base bracket. I don't know the part number but the part should be available from the Dodge dealer.
No, they are not interchangeable.
No.