Question about 1994 Pontiac Grand Am

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Leaking coolant beside ac lines on firewall - 1994 Pontiac Grand Am

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Sounds like a heater hose or heater core has gone bad.

Posted on Jul 11, 2010

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2 Answers

2005 buick lesabre AC hose plugged leaking water onto passenger floorboard. How do I fix this?

You need to find the drain pan line that comes through the firewall. Open the hood and search for the line on the passenger side firewall. The line is probably clogged from insects, animals, or other gunk. use a short piece of dowel or wire to unclog the line and allow the pan to drain to the outside of the vehicle.

Aug 30, 2014 | Cars & Trucks

1 Answer

What is causing water to leak down onto the passenger side floorboard of my 2004 Mazda 6 wagon when I have AC on?

Feel the water and smell it. If it smells sweet and fells oily, is is coolant. If is isn't oily and has no real smell, it is water. There is a tray under the evaporator and heater cores that catches water/coolant and drains it via a tube thru the firewall to the outside of the car. This tube is probably clogged and needs purged. If you have coolant on the floor, you'll need to replace the heater core. If it is water, purging the hose will solve the problem as the water is just condensation from the AC coils

Aug 24, 2014 | 2004 Mazda 6 Wagon

1 Answer

Leak from overflow line under condenser

Are you talking about the ac drain hose ? And is it clear water or coolant ?

Mar 02, 2014 | 2000 GMC New Sierra 1500

1 Answer

My car is smokeing from my air vents when i am driving

Check coolant level in return bottle . If level is going down, good chance you have a heater core leak, but check hose connections where they enter firewall under hood to make sure it's not leaking by there and entering the duct work. Other possibility, freon leak from AC. If only doing it on defrost or AC, have AC tested for leak.

Dec 31, 2011 | Cars & Trucks

2 Answers

How can I fix the a/c in my Chevrolet Venture 2001 , All the coolant leaked out of the compressor. How do I fix it and replace the coolant?

Hi Friend:

#1) First determine where the Leak is Located Use a Leak detector from your Local Parts Store.

#2) The Leak could be a A/C High or Low Presure Line.or could be a Rubber O-Ring Mainly Where your Lines are Conected to the A/C Compressor.

#3) Anytime a A/C System Has a Leak ,Fix the Leak 1st then you Need to Evacute the System By using a Vacum Tool.

#4) You probely don't have this-Almost any Repair Shop has the Right Equiptment.

#5) Assuming th Leak has been found and Repaired and the System Vacumed Down.

#6) To Recharge your System if your doing this.You'll need to buy R-34 Make Sure it Has a Gauge on it.Also Your A/C System wil need to Have The Refrigent Rechare NOTE: also it will need Oil put ack into the System.

#7) You Can buy the R-34 With the Oil in the Same Rechagre Can=With Gauge.

#8) Locate your Low Side Line Look at the Lines Coming from the Firewall and Trace the Lines and You Will see a Plastic Cap With a (L) on it This is your Low Sideor (suction side)

#9) Remove the Cap you'll see what looks like a Valve Core to Air your Tires up.

#10 Start your Enging Turn your A/C on High or Maximum Cool and the Fan on High. The R-34 has a Quick Connect on the Hose ,JUst pull it back nwhile Putting it on your Low Side Recharge Valve.Be Sure you Shake the Can before connecting it.

#11) After Connected Turn Can Upside Down Shaking it as The System is Recharging.

#12) Watch the Gauge on the R-34 Don't Over fill it,Stay with in The Green on the Gauge.

#13) Remove connector from the Coolant Line and You Should Have Cold Air Providing everything else on your A/C System is Working Properly>

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Jul 10, 2010 | 2004 Chevrolet Venture Passanger

2 Answers

Leking water from back ner firewall not heter hose

The AC condensation drain tube is also located on the passenger side fire-wall towards the bottom of the fire-wall, it is there to drain the condensation from the evaporator/core plenum so that it does not flood the passenger compartment floorboard with water and it can easily be viewed from under the vehicle, and if it is cool clear water that is leaking and not hot coolant then you have no problem and that is a normal condition when the AC is operating.

If it was a coolant leak the cooling system would be low on coolant, and the engine would run hot when the coolant gets low.

Jun 11, 2010 | 1996 Cadillac DeVille

2 Answers

1997 Buick Skylark is leaking coolant from a valve on the firewall, which appears to be next to one of the AC lines. Any ideas?

a temp fix, you can go to a parts store and buy this stuff that seals any leaks dealing with coolant sorry cant be more help good luck

Dec 19, 2009 | 1997 Buick Skylark

2 Answers

Leaking water

If you are running the AC often, it is a plugged HVAC drain. Find the drain under the truck. it is on the firewall -black rubber. clean it out with air and you will be good to go.

If it's got coolant in it, you have a leaky heater core connection. you may need new seals where the lines connect to the core.

Jul 31, 2009 | 1989 Chevrolet S-10 Blazer

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