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.&Quot; 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?
Monday, April 6th, 2009 AT 6:56 AM