Having problems with your 1998 Chevrolet Blazer ?

The blower on the heater works but no heat comes out just cold air, already changed the themostart and plenty of antifreeze, I had the system flushed and had a new heater core and nw radiator put in and it still justsblows cold air . Any suggestions would be helpful.

Posted / edited by AnonymousUser on : 14-06-2021

Answers :

Sounds like all key components have been replaced, so I think the blend door in your air box is not switching, if you can switch selector and get air at defrost, panel and floor, but all cold, the blend door connected to the heat / cool control is not actuating. DW Mylin
Repair Help & Product Troubleshooting for 1998 Chevrolet Blazer

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