Question about 2001 Cadillac DeVille

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2001 cadillac deville check coolant level but level is good.

2001 Deville info for me to check coolant; I've added a little to the resovour tank which satisfies the info system, however, this added amount will usually be expelled when driven at operating speed. Could this be a bad sensor or computor adjustment problem?

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  • Cadillac Master
  • 14,384 Answers

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

Posted on Nov 29, 2012

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  • Cadillac Master
  • 77,201 Answers

Are you saying you need to add coolant often? If so you need the leak found and repaired.

Posted on Nov 29, 2012

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Posted on Jan 02, 2017

  • 97 Answers

SOURCE: 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

Posted on Aug 30, 2009

  • 109 Answers

SOURCE: 1998 cadillac deville

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

Posted on May 06, 2009

emissionwiz
  • 77201 Answers

SOURCE: 2002 Cadillac Coolant sensor

The engine coolant temperature sensor is located on the driver side of the engine near the rear of the engine compartment

Posted on Oct 08, 2008

dealt_soul
  • 296 Answers

SOURCE: im receiving a check coolant

No the light is linked to a sensor. There is a coolent sensor that tells you that the level is low. It sounds like the sensor has gone bad. And the sensor is located in the coolent tank. If it is bad from my understanding you have to replace the whole tank. But take a paper clip with the engine off and disconnect the wire harness from the sensor and jump the wires and see if the light goes off.

Posted on Jan 20, 2009

  • 3 Answers

SOURCE: 1994 cadillac deville concours

On my car, which is the same as yours, it is located on the manifold top back left. Pictures in the book just show it on top.

Posted on Jul 24, 2009

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1 Answer

Message comes on to check cooler level. The overflow or where you add cooler is okay.


check on the side of the resovour there should be a sensor on the side of the tank. i have found these like to stick and leave the check coolant indicator on. check to make sure the coolant is at the full level and gently tap the sensor usually this unsticks it. but to repair it properly ,it will need to be replaced. hope this was helpful!

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3 Answers

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There's a few things I'd take into consideration. As stated in other posts, yes make sure transmission fluid is up to proper level. Also, depending on what engine you have, there may be an electric assist pump or even 2 in the system. On some, they have an electric pump to circulate coolant through heater core at idle to maintain proper heat , as well as another to assist mechanically driven pump when coolant temperature gets to approx 195F. Obviously when going up hills there is an added continuous load on engine, which will cause it to run hotter, thus I would expect that electric pump to be kicking in, and if not, may be the cause. Also the added load of climbing hills, creates added exhaust temperature, and if there is any restrictions, the results would be overheating. Quite often you may feel at least a little lack of power compared to what it used to be, or an increase in fuel consumption, or both when exhaust has a restriction. With that said, a weak water pump is also a possibility. Hope this sheds some light on what to pay attention to.

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