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Heater only works when radiator indicator light is on

721 views 5 replies 3 participants last post by  Katblackbass 
#1 ·
I just had my radiator fixed and it immediately overheated and then never overheated again. I think it was the overflow tank that had a crack. Since then my heater blows cold air out unless the radiator light comes on. Mechanics are scratching their heads. Anyone know what it could be?
 
#2 ·
Radiator light = low coolant level. Heater gets water thus lowering the fluid level of the cooling system since you have air trapped in it. Bleed cooling system correctly and heater will work all the time and the radiator light wont come on at all.
 
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