Question about 1993 Pontiac Grand Am

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Coolant leak close to firewall from 90 degree rubber elbow. 93 pontiac 2.3 liter. It looks like there is a hose missing. Is this an overflow or am I missing a hose? If I am where does it lead?

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Hoses at the firewall connect the heater core inside the car to the engines coolant system.there are 2 heater hoses.the hose may have deteriorated or if the90* elbow has a clamp at the firewall end and is loose,the inlet tube of the heater core may be broken.use a flashlight for closer inspection.rapid coolant loss will result either way.

Posted on Sep 29, 2009

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If the leak looks like it's coming out the 90 degree black rubber elbow then, this is a common problem.

check out

http://www.hotrodders.com/forum/coolant-leak-y2k-impala-169816.html

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That drain line is for the box that holds the air conditioner evaporator and the heater coil. It seems that your heater coil has sprung a leak and the leaked fluid is coming out the drain. You have to replace the heater coil, which on most cars involves removing a lot of the interior equipment, including the dash board on many cars. A job best left for the repair shop unless you're very adventurous and patient. Even then you will have to take it to a shop to have the air conditioning system recharged.

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1 Answer

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The hose you are referring to is the drain from the heater box...gets rid of condensation from the a.c. don't connect it to anything. But, If any antifreeze (not plain water) is coming out of there, then you likely have a heater core leak. That said, if the engine is not running hot and you aren't loosing antifreeze, the level sensor in the tank is bad.

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1 Answer

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