Mechanics

CHEVROLET IMPALA DOOR PROBLEM

2002 Chevrolet Impala • 190,000 miles

My heating system has all of a sudden statrted not getting warm all the time especially if I have it on defrost/floor. I had thermostat changed and system flushed. I have kept the car in great mechanical condition, no other problems. Any ideas?
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Mgflw1960
December 21, 2012.




First of all make sure that the coolant level is correct.

if still no heat, remove the blend door actuator (under dash). turn the "arm" that the actuator fits onto. this will open the heater door. if heat now is available, replace the actuator.

this link will help.

http://www.youtube.com/watch?v=D_GZNbP4mwo
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Freemba
Dec 21, 2012.
Before removing anything I would also make sure both heater hoses going into the heater core at the firewall are getting too hot to hold when the engine is warmed up?Also watch if the blend door is operating.

Saturntech9
Dec 21, 2012.

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