I have heat. Fog for approx 2mins and clears up for about 1min and 30 sec and continues to do this. It starts when the outside temerature gets below 30. Heater core is not leaking anywhere.
Could be a blend door problem. You would need fresh air from the outside to keep the windows from fogging up. If the blend door that controls outside air gets stuck or fails to open, you may not get fresh air. The ac compressor would also need to run every few minutes to dry the air hitting the windshield.
SOURCE: I want to replace the fog lights for my wife's
You can reach below the front bumper, behind each of the fog lights and turn counter-clockwise to remove each bulb, then simply un plug the harness. This done from outside the car not under the hood. Once you removed the 2 bulbs go to your auto parts supplier and puchase the bulbs. Reverse this procedure to install the bulbs. Try not to touch the actuall glass part of the bulb because the acid/oil on your skin will in fact decrease the life of the bulbs. You do not need any tools for replacing the fog light bulbs.. Just patience...
SOURCE: We have a heating problem on the inside of the
normaly sign that pollen filter needs renewing
SOURCE: my 2001 oldsmobile silhouette keeps over heating.
Hi!
I have and 98 Intrepid 3800 motor, and had same problem.
I tried a few things, but what finally worked was when I took the car for a complete cooling system flush, they opened the radiator and cleaned every single passage line, flushed motor and heater core,
It cost me about $100 but I havent had a problem since. I recommend you do the same.
There is a screw on the thermostat housing that is used to purge the air out of the cooling system. On your owner's manual are detailed instruccions of this procedure.
If helpful, click below. Good Luck
SOURCE: The silhouette has no heat and the heater core is
thermostat or heater control valve or vacuum line bad
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