2006 Chevy Impala 6 cyl Front Wheel Drive Automatic 77,800 miles
At operating temp, with blower on while moving, heater air is hot and "normal." When stopped and idling, the warm air turns cool. When RPM's increase from 700 to 1000 in neutral, stopped, the heat returns to normal.
Thermostat replaced 3 weeks ago and sufficient heat was confirmed with laser thermometer while in the shop. Now, its doing the same thing again. Where should I look next to resolve this issue?
have the same problem?
Monday, April 6th, 2009 AT 6:56 AM