1994 Chevrolet Corsica

Engine Cooling problem
1994 Chevy Corsica 6 cyl Front Wheel Drive Automatic 10,000 miles

1994 chevy corsica that leaks water from the firewall near the heater core hoses there a rubber elbow but no hose attachs to it.
August 8, 2008.

I have replaced a heater core in my corsica about 9 months ago. The heater core has a plastic liner/tub hannging underneath it which collects moisture-leaks and does have a small elbow which passes thru the firewall to dump the water onto the ground. If you are leaking thru that elbow quite a lot chances are your core is bad. The oem core was a dim witted design it has two plastic tubes press fit onto the aluminum core in my case the core was fine but the plastic tube cracked in half causing a leak.

Car tom
Aug 27, 2008.