Question about 1993 Pontiac Grand Am

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Antifreeze leaking on firewall out of rubber elbow?

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  • swm0925 Aug 04, 2008

    antifreeze pooled onto the floor underneath dash.

  • koop1265 Nov 08, 2008

    I have the same problem...once I turn on the heat...I smell antifreeze...I have been told it is the heater coil...and a ***** to replace..

  • info67 Nov 16, 2008

    1994 Pontiac Grand Am water coming in inside on the floors inthe front and one side in the back

  • OWNLEYSGIRL Nov 22, 2008

    MY FLOOR BOARD IS REALLY WET. i AM TRYING TO FIGURE OUT WHY? i HAVE TAKEN IT TO A FEW PLACES AND EVERYONE SAYS DIFFERNT THINGS? WHAT IS THE CAUSE OF THIS?

  • Anonymous Dec 13, 2008

    i have the same problem does any1 know where the elbow leads to?

  • Anonymous Mar 11, 2009

    do not know where the elbow leads. 1991 grand am

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I had the same problem and it is the heater core. Hope the info below helps.

The heater core is inside the firewall under the center of the dash. It requires removing the center console to reach the plenum cover.

Drain the coolant. Be Prepared for a few skinned nuckels. First dissconnect your battery You will be working around wiring harness' so just tobe on the safe side I would disconnect the battery.The easy part is removing both glove boxes, remove the console remove the covers under the steering wheel remove the cover surrounding the the radio and heater controls, now remove the first plastic cover it will have two ports going into the center console, you might have pull back the carpet on both sides to get it out. After you remove that cover you have to remove the next cover that hides the heater core. When that is removed you should see the heater core there are four bolts two top two bottom holding silver bands remove these and the heater core will be loose. When removing everything make sure you get all the screws I missed two hidden screws and broke the cover. Some are torx some are nut heads.Now that is the easy part the hard part is removing the heater hoses from the back fo the engine. If the You are sure the heater core is shot usually coolant on the carpet is a good indicator just snap the two plastic pipes going to the heater core. This will make it easier to access the hoses. There is no easy way to remove these is is a matter of determination and patience. I would never change a heater core without changing the hosesyou will see that it will be worth new hoses because you will not want to repeat this procedure again.

Posted on Nov 22, 2008

  • len golanowski Oct 01, 2012

    thank you very much syetsko

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  • Master
  • 335 Answers

The Heater Core is leaking the fluid you see is being caught on a tray below the heater core inside the vehicle.

Posted on Jul 21, 2008

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  • 277 Answers

SOURCE: My 1991 pontiac sunbird is leaking antifreeze. It

Age of vehicle determines that you get a replacement hose and clips first. Drain down the Coolant into a container, replace the hose, and refill, remembering you are going to loose coolant by spillage on the drain down.
Regards, DT

Posted on Sep 06, 2009

honeymokey
  • 3113 Answers

SOURCE: leaking antifreeze from an

Time for a heater core honeymokey_0.jpg

Posted on Nov 16, 2010

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1 Answer

Leaking antifreeze inside car. i want to bypass heater core if could until we can get it fixed. how do i do it?


Trace the 2 water hoses going into the firewall from the engine. Remove 1 and measure the inside diameter, most but not all GM heater hose is 1/2 inch. Go to the hardware store and get a plastic 90 degree plumbing elbow the same size and a couple screw hose clamps. Remove the heater hose from the firewall and connect them to the elbow with the hose clamps. Make sure they can't rub on the exhaust manifold and top up the rad and you are good. Hope this helps.

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The coolant leaks right back out from a rubber elbow hose on firewall by the heater core. should it be conected somewhere or have a clamp?


if that elbow is very low on the firewall it is a condensation drain for A/C if coolant pours out of there I believe your heater core may be leaking. Do you smell coolant in the cabin? feel free to reply, I should be around most of the day...MK

Oct 02, 2010 | 1996 Oldsmobile Achieva

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Water on the passenger side floor-front and back


It may be a leaking A/C condenser my advise would be to take it to an Air Conditioned Shop to have it checked. Good luck

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Antifreeze spilling out rubber elboe under hood


If the coolant is coming out of a rubber elbow then that hose is the problem and not the heater coil. If the heater coil itself is leaking the coolant will be dripping on the right floorboard.

Jan 14, 2010 | 1995 Oldsmobile Achieva

1 Answer

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?


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.

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3 Answers

Wet floor passanger side


Air conditioning drain stopped up with debris (leaves,pine straw,sticks). Small tube sticking out from firewall with rubber elbow pointing down behind engine, passenger side. If elbow missing air will cause water to back up into vehicle. Another possibility, if your coolant is low heater core leaking.

Sep 27, 2009 | 2002 Jeep Liberty

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My 1991 pontiac sunbird is leaking antifreeze. It


Age of vehicle determines that you get a replacement hose and clips first. Drain down the Coolant into a container, replace the hose, and refill, remembering you are going to loose coolant by spillage on the drain down.
Regards, DT

Sep 06, 2009 | 1991 Pontiac Sunbird

1 Answer

Water leak overflow hose......


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.

Jun 15, 2009 | 1994 Pontiac Grand Am

2 Answers

Pontiac Grand Am cooling system


A rubber elbow coming out of the firewall is probably the a/c evaporator drain. However, the heater core could be leaking and entering the evaporator case and coming out of that drain. Are you sure coolant is coming out of that elbow and not plain water?

May 09, 2009 | 1994 Pontiac Grand Am

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