Question about 2000 Cadillac DeVille

2 Answers

Water coming from engine into overflow tank

Water keeps coming from engine into overflow tank and then onto ground. 2000 cadillac deville.

Posted by on

2 Answers

  • Level 1:

    An expert who has achieved level 1.

    Hot-Shot:

    An expert who has answered 20 questions.

    Corporal:

    An expert that has over 10 points.

    Mayor:

    An expert whose answer got voted for 2 times.

  • Contributor
  • 27 Answers

You may be overfilling the tank. The correct level is marked on the side of the tank. If the engine is running hot you may have a broken waterpump or waterpump belt or bad thermostat. All of these items are found on the drivers side of the engine. Youtube has some great video for replacement.

Posted on Oct 06, 2012

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Genius:

    An expert who has answered 1,000 questions.

  • Master
  • 1,118 Answers

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

Posted on Feb 08, 2009

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

After driving my 1997 cadillac deville until temp reached aprox 212 ...I let it set and cool to about 124 ...opened the overflow tank and the water bubbled down. was the cooling system purging?


Depending on where you live in the country, 212 isn't to hot. Your high temp fans don't come on until 225-230. And what you described sounds normal as there is pressure in the system at 124.

Sep 05, 2014 | 1997 Cadillac DeVille

1 Answer

99 cadillac deville engine overheating an loosing coolent couple times a day.Replaced thermostat, water pump ok, cooling fans on at 217deg.,radiator pressure tested an holding pressure.engine still keeps...


Check to see if you have flow through the entire radiator.If part of the radiator core is cool to the touch when the engine is at operating temp, this indicates restricted radiator flow. If the entire radiator core is not allowing water to flow through, cooling will not be at all efficient. Also a good idea would be to purchase a block tester. available at napa and other reputable parts houses for around thirty dollars. You remove a small amount of coolant, and put the tool in the radiator, or pressure tank opening. If there are any combustable gasses present, i'e' exhaust, this would indicate a head gasket breech, (or maybe worse) and would indicate that it's time to stop looking for a simple problems, and get proffessional help. Good luck to you!

May 12, 2011 | 1999 Cadillac DeVille

1 Answer

02 deville with 140k,overheats after driving,replaced water pump and thermostat,coolant seems to come out of the coolant res overflow ,can the surge tank cause this? loses heat from heater and then starts...


you may have too much coolant in it... oddly enough,. I've seen entire cooling systems (and even the engine get replaced) and it still over heated -- when in fact it was an all of a sudden the car required a larger radiator -- and the (freaky) problem was fully solved,. in your case it may be a larger holding/ overflow tank?

Best regards
Ck

Jan 05, 2011 | 2002 Cadillac Deville

1 Answer

How would i know if a head gasket is cracked or leaking if i dont see the water.for a 2000 cadillac deville


Well there are a lot of things to look for and they are .
1st the engine would sound differant slight hissing or running a little rougher on idle or pick up.
2nd if head gasket is starting to blow between 2 cylinders then you will get a back firing through the exhaust or carby {depending on what cylinder is blowing to what cylinder} and if you are loosing water then you will see it in steam form coming out of the tail pipe of the exhaust and engine could be breathing steam back into A cylinder which would also make it run a bit rough.
BUT IF all the cylinders are running well and you are loosing water and cannot find the cause then it could be blowing out of the overflow tank on the side of the engine,and check on the thermostat as that can alsogive you the same problems.
So let me know how you get on
Ron.

Jan 02, 2011 | 2000 Cadillac DeVille

1 Answer

97 cadillac eldorado overflowing through overflow pipe


The most common overheating problem with the Northstar engine is a blocked purge line. It's job is to purge air out of the cooling system.
There is a small diameter hose coming from near the top of the coolant tank(not the cap),this is the purge line.
With the engine idling,pull the purge line from the tank,if there is no coolant flow from this small hose,it is blocked and this will cause overheating.If the hose is clear, check for blockage at the nipple on the tank.Or trace the hose back until you find the blockage.The hose goes in to the engine to a crossover and comes out the other side to near the thermostat housing,the blockage may be there.

Apr 11, 2010 | 1987 Cadillac Eldorado

2 Answers

Caddillac Deville keep running hot water keep coming back through the overflow tank


The thermostat could be bad. Run the engine cold with the cap off the bottle. If it comes out while the engine is still cold, you have a bad headgasket. Otherwise, start by replacing the thermostat.

Mar 05, 2010 | 1997 Cadillac DeVille

2 Answers

Why does my cadillac 1998 deville keep overheating?


Overheating can be numerous things: Fans not working, water pump, thermostat, overflow cap, and the list keeps going. When the engine is running and heats ups, feel the heat of the top hose, if the hose isn't hot, the thermostat is most likely stuck open and needs replaced. If it is hot we know you have circulation. The cap on the expansion tank may be defective, if it can't hold the pressure of the water, it will release at the overflow cap if the cap is bad. Also check the coolant level.

Jan 30, 2010 | 1997 Cadillac DeVille

1 Answer

Engine over heats 2000 cadallic deville northstar engine


flush your radiator first.with the thermostat out you should see the water moving if not bad water pump.this engine needs the thermostat to function properly and either a 50/50 coolant or straight coolant so it does not boil over.also make sure your fans are coming on

Sep 20, 2009 | 2000 Cadillac DeVille

Not finding what you are looking for?
2000 Cadillac DeVille Logo

460 people viewed this question

Ask a Question

Usually answered in minutes!

Top Cadillac Experts

yadayada
yadayada

Level 3 Expert

61292 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

21949 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

6812 Answers

Are you a Cadillac Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...