hatleyn wrote:My jeep has a heater mounter up under where a passenger would put his/her legs, looks like there is a gas line going to it. Thanks
it isn't a gas powered heater. It's a hot water heater. There should be a hot water feed pipe going from the area around the water pump...to the heater, then back to the engine. There are brass spigots at the engine end which must be opened to allow water to flow around the heater unit when the system gets hot.
The drum-shaped unit on the left hand side of the heater is the blower motor. There should be a switch on the dash to operate the blower (it says Hi-Off-Low).
If you don't know how the system works, you must get yourself a tech manual otherwise you'll end up doing some damage.
As a minimum, get the Driver's TM (TM9-2320-218-10)