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 Pontiac Grand Am
Average mileage: 130,664 (38,000–182,654)
26 people reported this problem
7 people shared problem details
1992 Pontiac Grand Am182,654Visitor
hearter does not blow warm air.heater core has been bypassed
1996 Pontiac Grand Am130,000Visitor
leak....Firestone did pressure test and said heater core leaking
1997 Pontiac Grand AmVisitor
126000 k heater core leaking is their a drain on the back of heater core/
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.
1997 Pontiac Grand Am160,000Visitor
i have replaced the heater coil on this car two times and just went out again why,,,,,
we had a gas leak and asked if we had engine work done on car. so my questions is does the mec...
The collant is leaking inside of the car of a pontaic grand am 1995 what is the problem.
OIL LEAKED ON PASSENGER SIDE. MECH FOUND NO "LEAK", YET CAR ALMOST STALLED AND a burst of SM...
This began years ago, and has taken me nearly 3 years to determine where the leak is coming in....
black rubber elbow in the back of the engine. The heater core connections are dry. any ideas?