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interior heat

D

dlk

New member
Does anyone have any suggestions on where to start looking for problem with heating system on an 04 grand prix. I had the cooling system flushed about
2 months ago. It seemed to work fine, then one day I have heat and now it is barely warm. Any help or suggestions would really be appreciated. I changed
the thermostat about a month ago. Any ideas on how to back flush heater core would be great.
 


take the 2 heater core hoses off the alt bracket on the back of the engine, put a garden hose to one of the open hoses, and flush it, then do the other hose, fill the core, and hoses with water, put them back on the car.
 
clr would help a little but make sure you have it all flushed out before you put it back together.
 
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