Question about 2001 Cadillac DeVille

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Where is the drain line on a 2005 Cadillac Deville for the ac. It is leaking into the passager capartment

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This hose most likely got dislodged by someone's foot. It is black, press fitted, and about 1/2 inch in diameter. pull back mats and carpet and look near firewall on passenger side.

Posted on Sep 12, 2010

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PICTURE OF PURGE LINE DIAGRAM FORTHE COOLANT SYSTEM OF A 2001 CADILLAC DEVILLE DHS ENGINE


There are a lot of coolant lines around the Northstar engine, but not one called a "purge line" that I am aware of. The coolant system is designed to be a closed system, and is never purged.

However, there is a rubber drain line on the pressurized overflow tank that will release coolant on excessive pressure sensed by the rad cap on the tank, or if the rad cap is faulty. If the system has a leak anywhere, it will not hold required pressure and that will always cause overheating. If you are losing coolant, that is the first place to look (bad rad cap, or cracked tank or line from the tank to the rad).

Oct 22, 2016 | 2001 Cadillac DeVille

2 Answers

I have water leaking onto the carpet on pass, side front & rear and I assume the drain for air cond is pluged. I don't know where the drain is located or how to unplug it. it is a 2003 cadillac...


i believe you have a leaking heater core, if the water is leaking out from under the dash right under the glove compartment this is almost certainly the problem

Jan 22, 2011 | 2001 Cadillac DeVille

1 Answer

My 2005 cadillac cts leaks coolant when idling for more than a few minutes after it is warm.


Try to add the recommended coolant sealant from the dealer. If this doesn't work then mechanical repair will be required.

For instance, I have a 1997 Cadillac Deville Limousine that I acquired, and it was leaking antifreeze through the o-ring of the water pump. Replacing the water pump was indicated and did so. But, after that the head gasket was leaking as indicated by a miss and fog coming out of the tailpipe. I repaired that problem by adding a $30 can of Bar's Leaks Head Gasket Repair, the kind that doesn't require draining the coolant system. That did the trick, and haven't had a problem since (for 3 months now).

Where is your coolant leaking from? Is the system within normal operating temperature?

Nov 08, 2010 | 2005 Cadillac CTS

1 Answer

2004 Cadillac DeVille. Leaking water onto passenger floor when ac on. Is there a drain hose that might be clogged?


Yes there is a drain under the car on the passengers side.You will have to jack up the vehicle to look for it.It will be a small rubber tube.Use a small screw driver or something to loosen the debris that is clogging the drain.Be careful and do not use anything that is to long that could poke a hole in the evaporator or heater core.Hope this helps.Good luck.

Jul 09, 2010 | 2004 Cadillac Deville

2 Answers

2001 Cadillac Deville AC Off message, will not blow cold air


does the ac clutch kick on? does the car have freeon? u will have to take it to autozone and let them use a scan tool

Mar 15, 2010 | 2001 Cadillac DeVille

1 Answer

My 1996 Sedan DeVille works on econ only with no heat or air. Will charging the a/c correct? Has never been charged. Only 36K on car


Alot of the time the cooling system will only work in Economy when your cooling system needs to be recharge. It does this to protect AC pump. Recharge and check for leaks. Should solve your problem.

Oct 14, 2009 | 2005 Cadillac Deville

1 Answer

My ac wont work


Must be Air-Condition System Lines/ Hoses leaking R12 Freon (gas).

MAYBE THE PULLY HUB BEARINGS FAILED OR
DUE TO VERY LOW R12 FREON (GAS ) will not work.
Because there is a switch in the receiver/dryer prevent AC from working when low R12 Freon present, to protect the system & compressor damages.

You must fix the leaks, before recharging it.

They must **** the old (residue) gases from the system & lines / hoses...... & stay in the vacuum pump 30 minutes to proof no more leaks.

Recharge some oil for the old type R12 Freon gas.

Before recharge it to 62-67 psi R12 Freon

See the web site like www.youtube.com/video site to see How they service & repair air-condition system?
Put the question to their search window.

This is the question u should.
How they service & repair air-condition system?


Regards;
MAR

Aug 04, 2009 | 1994 Cadillac DeVille

1 Answer

1999 Cadillac Coup DeVille


Have your a/c system charged and tested for leaks.

Jun 21, 2009 | 1999 Cadillac DeVille

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