What is your question?
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What is your question?
5.3 l engine TrailBlazer overheating. Heater blows cold and doesn't blow at all on max. I hear water swishing in dash. And fogged windows, coolant inside passenger floor. heater core hoses are underneath and behind AC condenser, I fixed a cracked hose ( no leaks ) which already has a flush kit installed. I need a video or pictures, someone to walk me thru how to flush heater core?
What makes this problem better or worse?
Worse longer I drive it
How long has your 2006 Chevrolet Trailblazer EXT had this problem?
Nearly 6 mos
1 Reply
Hello, it sounds like you need to replace the heater core for verified leakage inside the passenger floor. Unclogging does not appear to be a concern. Additionally, it sounds like you have an air pocket in your cooling system from doing repairs. Lastly, your air not blowing on maximum speed is a blower motor or related circuit issue that should be tested. Use this link to find some shops near you that can help with your concern: www.repairpal.com/repair-shops