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.
Coolant Leak From Heater Core on Chevrolet Blazer
Average mileage: 121,166 (50,000–261,000)
12 people reported this problem
1998 Chevrolet Blazer 133,000 mi, Visitor
I took the Blazer in to the shop and 860 dollars later I got the car back, that was 7 months ago. Now I am having the leaking problems again, but not in the inside of the car. Its leaking on the outside under where the heater core is placed. I am getting tired of this nickle and dimming of a rig!!!
1995 Chevrolet Blazer 50,000 mi, Visitor
heater core leak on right side. Repaired pan.
1995 Chevrolet Blazer 60,000 mi, Visitor
leaked, cost $1000 BECAUSE THE DASHBOARD HAD TO BE TAKEN COMPLETELY OUT
1999 Chevrolet Blazer 261,000 mi, Visitor
smell of coolant in cabin