Problem Reports
Chevrolet S10 Blazer
Report: Heater Core Under Right Side of Dashboard May Leak Engine Coolant
Chevrolet S10 Blazer Problem
Model Years Affected: 1990, 1991, 1992, 1993, 1994
Average Mileage: 138,641 mi (53,000 mi - 200,000 mi)
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.
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Visitor, 1992 Chevrolet S10 Blazer, 53,000 mi
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~~~~~~~`
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Visitor, 1994 Chevrolet S10 Blazer
Core leak "fixed " by disconnect of hoses to fire wall w/caps, as i live in Fl.
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Visitor, 1991 Chevrolet S10 Blazer, 200,000 mi
No Heat - Large puddle in the passenger side floor.
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Visitor, 1991 Chevrolet S10 Blazer, 199,564 mi
Heater core went out and antifreeze leaked in the passenger side floor board. A new heater core had to be installed
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