Chrysler Repair: chrysler concorde heater help (1997 LX), chrysler concorde, coolant recovery


Question
Recently my heater wasnt working, i would turn the dial over to the red for heat and all it would do is blow air. i checked everything (SO i thought) the fuses, the hoses, the thermastat, and the panel. well i got to looking around and i noticed two plugs under the dash on the driver side. one of those plugs were unplugged. i plugged it in and presto. My heat started working. NOW I HAVE ANOTHER PROBLEM. THE HEAT WILL BLOW FOR A GOOD 10 TO 15 SECONDS THEN BLOW JUST AIR AND REPEATS. ALSO I NOTICE THE TEMP. STARTS TO GET HOT. WHAT WOULD CAUSE THIS? HOW COULD I FIX IT?

Answer
Hi Shaun,
The tie-in between the loss of heat in the cabin and the build-up of temp on the gauge may be that you have air trapped in the cooling system. I would try draining down the radiator a few quarts and then refilling it with the captured coolant following the procedure:
On the way to get air out:
It would be good to start with only a partially filled system, so drain off three quarts from the radiator drain.
Then notice that the thermostat housing has a bleed valve and a nipple from which you can drain fluid. Put a 4' length of clear plastic hose on the nipple and direct the hose over the front of the car to a clean container to catch the coolant. Then open the bleed valve. Then slowly fill the coolant recovery bottle until fluid starts to flow out of the clear hose. The gently squeeze on the top radiator hose until all the air is exhausted from the system. Close the bleed valve and fill the system the rest of the way until it reaches the to of the overflow on the bottle. Remove the hose from the bleeder valve nipple.
See if that solves the problem.
Roland
PS I see you had a repeat of the question which I will reply to perfunctorily. Sorry for the delay, your question just appeared in the 'pool' this morning.