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by Old School on January 14th, 2008
Another possibility is that the self-adjusting clip on the temperature control cable is faulty.
Perhaps when you first move the temperature lever, it holds the temp door open properly then over time it shuts and allows cold air to come in.
Here's a repair procedure:
http://www1.autozone.com/az/cds/en_us/0900823d/80/12/75/99/0900823d80127599/repairInfoPages.htm
by csimme01 and Ninja Cooper UNMASKED on January 14th, 2008
Sounds like you may have a bad thermostat. When you are parked there is little airflow throught the radiator so the engine can warm up to provide heat to the heater core. Once you start driving the failed thermostat allows the coolent to flow through the radiator where it is quickly cooled by the airflow leaving no heat for the heater core. A thermostat is not difficult to do on your own or expensive to have done. Hope this helps.
98 grand marguis heater is blowing cold air off and on.
by reneelowder on January 3rd, 2011
| 1 person likes this
Does the dash have to come out in replaceing a heater core in a 1992 pontiac transport?
by rickangel on October 24th, 2011
| 1 person likes this
How hard is it to change a heater core on a 96 ford escort? And what does it involve as far as removal of dash components?
by bigandy94 on November 4th, 2010
| 1 person likes this
Whom do you thank when something wonderful happens to you?
by GibsonGuy on September 22nd, 2011
| 1 person likes this
my 95' honda civic has white smoke coming out of tailpipe, and there is no coolant circulating in the lower radiator hose
by superman on May 1st, 2011
| 1 person likes this
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