Mechanics

COOLANT LEAK

1996 Chevrolet Corsa • 6 cylinder 2WD Automatic • 165,000 miles

Coolant leaking from elbow (under a/c tubes going into cab), doesn't have pressure but will drain out if left to sit for awhile.
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Imalakepapa
May 28, 2011.



AC being operated?


Docfixit
May 28, 2011.
It was overheating at the time it started leaking, but the air was not on.I have a picture of the elbow attached
Thanks


Tiny
Imalakepapa
May 28, 2011.
Believe elbow is drain tube for EVAP the other end is not attached right? If yes then suspect heater core is leaking


Docfixit
May 28, 2011.
Sounds like a heater core. Pressure test the cooling system. If you see no external leaks in engine compartment and coolant is entering the car or leaking out of the a/c drain try bypassing the heater core by removing the heater lines at the firewall (DO NOT DO THIS WHILE ENGINE IS HOT). Most part stores will carry the fitting you need to hook the two hoses together (usually in a flush kit)Then check to see if you are still loosing coolant.


Tiny
89integrals
May 28, 2011.