Pontiac Grand Am Problem Report

Pontiac Grand Am Coolant Leak From Heater Core

(24 reports)

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.

hearter does not blow warm air.heater core has been bypassed -
Both hose was leaking and needed new heater core, huge puddle appeared and car made horrible noise, could see coolant pumping out when running, was able to drive to repair shop but needed to fill coolant and made a real mess. -
Smelled coolant; defroster would not work. Had heater core replaced. -
i have replaced the heater coil on this car two times and just went out again why,,,,, -
not yet fixed!! -
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