Chevrolet S10 Blazer Problem Report
Chevrolet S10 Blazer Coolant Leak From Heater Core
The heater core under the right side of the dashboard may leak engine coolant which can puddle on the passenger front floor. The loss of coolant may cause an engine overheating condition. Our technicians tell us that removal of the dash board is necessary to replace the heater on these vehicles.
Replaced the heater core and installed a ground wire from the heater core to the chassis ground. Blazer now has 247000 miles and haven't replaced the heater core or the radiator since. Electrolysis is a terrible thing. - Visitor
Core leak "fixed " by disconnect of hoses to fire wall w/caps, as i live in Fl. - Visitor
heater core started leaking on right front carpet; tied off hoses,plugged one with wooden dowl and clamp.have been driving w/o heater....during tolerable winter conditions~~~~~~~` - Visitor
Coolant leaked into the passenger side floor. Replacement of heater core was needed - vog984
Coolant Leak at passenger side foot area. has to replace heater core - Visitor
No Heat - Large puddle in the passenger side floor. - Visitor
Heater core went out and antifreeze leaked in the passenger side floor board. A new heater core had to be installed - Visitor
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