Question about 1997 Cadillac DeVille

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What is the coolant system capacity for a 197 cadillac deville

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The deville cooling system 12.3 qts of dexcool antifreeze an gm coolant supplement sealant p/n 3634621 specifically designed for use in aluminum engines.

Posted on Apr 06, 2010

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Posted on Jan 02, 2017

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Where is the radiator bleeder valve for a 2004 Cadillac sedan DeVille 4.6 liter


There isn't one , not necessary if you follow directions
Close the radiator drain ****.
Install the front air deflector. Refer to Front Air Deflector Replacement in Body Front End.
Lower the vehicle.
Important: Use a 50/50 mixture of DEX-COOL antifreeze and clean, drinkable water.
Slowly fill the cooling system with a 50/50 coolant mixture. Refer to Approximate Fluid Capacities in Maintenance and Lubrication.
Install the coolant pressure cap.
Start the engine.
Run the engine at 2,000-2,500 RPM until the engine reaches normal operating temperature.
Allow the engine to idle for 3 minutes.
Shut the engine OFF.
Allow the engine to cool.
Top off the coolant (1) as necessary.
Inspect the concentration of the engine coolant, using the J 26568 .
Rinse away any excess coolant from the engine and the engine compartment.

Mar 13, 2018 | Cadillac Cars & Trucks

1 Answer

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

1 Answer

How much coolant should I put in my cadillac northstar engine to fill it?


The capacity is around 3 gallons, but if you drain it I would say two gallons will be enough to fill.

Sep 04, 2014 | 1997 Cadillac DeVille

2 Answers

2001 cadillac deville check coolant level but level is good.


Your coolant level switch at coolant tank may be bad,click here to see.

Nov 29, 2012 | 2001 Cadillac DeVille

1 Answer

My 2001 cadillac deville has check coolant level


If you added the green anti freeze to you system it will make the check coolent level light come on. Drain the system and use the extended life anti freeze and that will fix the problem.

Jun 30, 2012 | 2001 Cadillac DeVille

2 Answers

When driving the cooling temp stays about around 197, but when i stop at a light, and go the temp, go up to about 222 and sometimes 230, and once the light turns green and you drive for awhile it goes back...


Sounds like like your radiator fan is not turning on when it should.Check fan relay,fan fuse and check for 12 volts at fan motor at connector.If all checks out then fan motor is most likely bad.

Apr 09, 2011 | 1997 Cadillac DeVille

1 Answer

What is the coolant capacity ?


2 gals of coolant and 2 gallons of water will work on your Cadillac

Jun 28, 2010 | 1999 Cadillac DeVille

1 Answer

2001 cadillac deville, overheats without loss of coolant


First, provided their are no visible coolant leaks and/or loss of coolant with no signs of leaks, I would thoroughly flush cooling system and replace coolant, then check and/or replace thermostat (you can place thermostat in boiling water to check for proper function), if you have tried these 2 steps and still are experiencing overheating you may need to replace your water pump which can be a tricky job if you're unfamiliar and try to do it yourself, however, I could walk you through it if necessary. Also visually check your radiator hoses for bulges, wear ,etc along with heater hoses etc. You may want to also check radiator fins to see if they are dirty/obstructed and clean if necessary. Let me know if I can assist you further and how it works out

Aug 30, 2009 | 2001 Cadillac DeVille

1 Answer

1998 cadillac deville


try taking off your fuse panel cover, there should be a reset button in there.

May 06, 2009 | 1998 Cadillac DeVille

1 Answer

Coolant temp. raising. no coolant loss.


first with the car off and cool squeeze bottom radiator hose with your hand then do the top,this burps any air out of the system,of course have the cap open,if this doesnt solve the problem its your radiator cores are block as you speed up its trying to force coolant thru a blocked core and temperature rises,you can pull your raidiator and have it cored at a radiator shop,cheeper than buying new

Jul 07, 2008 | 1999 Cadillac DeVille

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