3020 CAB HEATER HELP NEEDED!!!!

brandonbina

New User
I INSTALLED A CAB HEATER YESTERDAY BUT DO NOT SEEM TO BE GETTING HOT COOLANT TO IT. I PUT 2 TEES IN COOLANT LINES, ONE ON DRIVERS SIDE BY WATER PUMP, AND ONE AFTER THERMOSTAT ON TOP OF MOTOR. SHOULDNT COOLANT FLOW THROUGH THE HEATER THE SAME AS THE MOTOR OR AM I MISSING SOMETHING? ITS 8 DEGREES HERE THIS MORNING SO IM COLD LOL!! ANY HELP WOULD BE GREATLY APPRECIATED TO UNDERSTAND WHAT I AM MISSING.
THANKS!
BRANDON
 
I installed many of these . come out of the block drain and return thru the bypass pipe to the water pump . You are dead headed the way you have it .
 
The coolant will flow to path of least resistance. If you put tees in the coolant it is going to circulate pretty much as it did without the tees. You are going to have to plumb it in directly to a plug in the head near the thermostat housing so the water pump will push the hot water to the heater and return it to a plug close to where the water pump draws coolant from the radiator.
 
donmyeil is correct on where to plumb it. I have also installed a circulation pump to help push moor coolant through the heater core too, but you must first plumb is correctly or the circulation pump will not work.
 
can you give me little more info as to how to go intonthese spots and where they are exactly located?
thanks so much for allmthe help already!
 

First of all. Typing in all capitals is not a good idea.
Supply the heater from the highest pressure area of hot coolant. Return the coolant to the lowest pressure area of the system.
Thus this would be just prior to the thermostat(S) and just prior to the coolant pump's impeller .
 

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