Question about 2004 Cadillac CTS

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Coolant leaks after car is turned off 2004 cadillac cts

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  • Cadillac Master
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Almost certainly u need a new water pump, the pumps front shaft seal is leaking

Posted on Jul 22, 2010

Testimonial: "very helpful and very expensive to replace"

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  • Cadillac Master
  • 2,030 Answers

Where is it leaking from....if it leak when car is off...it leaks when its running as well( it just burns off before it hits the ground.

Check the water pump and hoses. Best to have a pressure test done to find the leak.

Posted on Jul 22, 2010

Testimonial: "very helpful very expensive to replace"

  • Sean Wright
    Sean Wright Jul 22, 2010

    Wait a minute...the other guy said you most likely need a water pump...dont go there. it was never even stated where the leak was so you cant make a blanket statement that its the water pump....they leak alot of other places.



    And a water pump is not expensive or hard to replace..its an hour labor and about $75 for a good pump.

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Posted on Jan 02, 2017

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SOURCE: car leaks coolant but does not overheat leaks alot

find out where the coolant is leaking from, a minor leak could become a major leak at the wrong time. check your hoses. how much coolant are you having to replace. If you don't see where the water is leaking from try warming the care up or looking for the leak after you car has been driven. Be very careful hot water can cause serious burns.

Posted on Jul 23, 2010

  • 73 Answers

SOURCE: car leaks coolant but does not overheat 2004

water pump weep hole leaking replace pump

Posted on Aug 23, 2010

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1 Answer

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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

Car leaks coolant but does not overheat leaks alot of coolant 2004 cadillac cts


find out where the coolant is leaking from, a minor leak could become a major leak at the wrong time. check your hoses. how much coolant are you having to replace. If you don't see where the water is leaking from try warming the care up or looking for the leak after you car has been driven. Be very careful hot water can cause serious burns.

Jul 23, 2010 | 2004 Cadillac CTS

1 Answer

Location of coolant temperature sensor


Maybe this will help . although this is from a 1997 Caddy.


Cadillac DeVille Engine Coolant Temperature (ECT) Sensor Location62451583.gif

Nov 20, 2008 | 2004 Cadillac CTS

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