Question about Cadillac DeVille

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It is a 2000 Cadillac Deville and the thermostat is replaced the radiator is good. So I do not know what it could be, some say it might be the head gaskets.

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What is the symptom???

if the head gasket were going, you would notice one of the following: coolant dripping from the exaust at start-up, smoke from the exaust, murky or bubbly oil from coolant mixing with oil, oily, brown film on top of radiator fluid from oil mixing with coolant.

if it only overheats when sitting still/idling then the problem is your electronic fan is not switching on.

if it loses coolant only during cold weather, and you notice your heater smelling funny, then it could be a hole in your heater core.

Posted on Mar 26, 2011

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Plastic impeller on the water pump and the plastic impeller is slipping on the metal drive shaft ??high possibility

Posted on Mar 26, 2011

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3 Answers

Just bought a 2000 Cadillac deville an I drove it 5 min. and it started over heating...the previous owner put a new radiator and thermostat in and said the heads was not blown..


he could be right about the heads but he may have put the thermostat in wrong and instead of opening it is blocking the coolant flow causing the overheating
The time span quoted is about right for a thermostat to start opening

Feb 11, 2016 | 2000 Cadillac DeVille

1 Answer

I have a 1999 Cadillac Deville. It is running hot and causing my antifreeze to come out the overflow pipe. My fans are not working either. I checked the fuses, radiator cap, all hoses, and replaced the...


Sounds like you may have a head gasket problem. These engines were known for having head gaskets go bad which would pump engine exhaust into the cooling system causing it to overflow

Mar 19, 2013 | 2001 Cadillac DeVille

1 Answer

Thermostat location on 2000 cadillac deville 4.6 Y


For 2000 Cadillac Deville 4.6L SFI DOHC 8cyl need to remove the air intake duct, then disconnect the radiator hose and remove the thermostat housing to remove the thermostat.
zjlimited_733.jpg

Fig. Thermostat and housing-typical


Hope helps.

Feb 23, 2011 | 2000 Cadillac DeVille

1 Answer

Where is the themostat on 2000 cadillac deville


hi. On a 4.9L follow the upper radiator back to the engine. This should be the thermostat housing. The thermostat should be inside.
On a 4.6L the thermostate is in the housing which is near the water pump drivebelts "on the coolant crossover housing". If this is not clean I recommend you buy the Haynes for your DeVille. See page 3-4, illustration 3.14.

Joe

Jul 29, 2010 | 2000 Cadillac DeVille

1 Answer

Cannot find overheating problem 1997 cadillac deville. we have installed new radiator, fans work fine, new water pump, new thermostat, catalyic converter, new hoses, and we cannot find any leaks. please...


These engines are know for leaking head gaskets. A good quick test for this is fill the coolant tank to the top with the cap off. Start the engine. If the the coolant blows out of the tank, you have a head gasket leak.

May 31, 2010 | 1997 Cadillac DeVille

1 Answer

Replace thermostat


thermostat is located from the top hose of your radiator to the block of the car next to the head usualy two bolts you will need a new gasket if you need the exact location buy a chiltons manual from autozone or oreillys

Nov 03, 2009 | 2000 Cadillac DeVille

1 Answer

I have a 97 cadillac deville, Not looking good.


I pretty much have the same situation, in doing research, I found out the the treads in the block tha thold the head on are possible poulling out of the block, there is a fix called Time cert it's best to pull the engine I'm told and remove the head or heads and install the time cert's, it comes with a drill guide, after drilling you instal the treaded time cert, replace the head bolts and reassemble the engine.
I did not do this I have ran block sealer and bought a new Delphi Radiator, I haven't completed running the third block sealer and I'm waitng to install theradiator until I finsh that. I dont' want to run block sealer through the new Radiator, so I hope to finish that today and if it runs cool I will install the radiator and the anti Freeze. Good Luck

Jun 10, 2009 | 1997 Cadillac DeVille

2 Answers

Changing the thermostat 2000 cadillac deville


The pressure they work within is usualy information on your radiator cap or owners hand book.Your thermostat should be a 180 degree but can vary The 180 is in reference to the heat required to open them so water can flow through and be kept at a more or less constant 180.There are other temp ranges for a wide variety of applications and 180 is the standard one for most vehiclesThe radiaor and water system is pressurised to lower the boiling point of the water The higher the pressure the lower the boiling point

Feb 15, 2009 | 2000 Cadillac DeVille

2 Answers

Water coming from engine into overflow tank


Sounds like an overheating problem, best to get it checked, maybe thermostat stuck closed, pluged radiator, head gasget, cracked head.

Feb 08, 2009 | 2000 Cadillac DeVille

1 Answer

Used cadillac deville


i would suggest having the car towed to a shop before purchasing it. have them check the water pump first and because it has the north star engine they need special tools to fix it

Sep 15, 2008 | 2000 Cadillac DeVille

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