Question about 2000 Cadillac Eldorado

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Check coolant prompt keeps coming on when reservoir is full

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Posted on Jan 02, 2017

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SOURCE: I own a 2000 Cadillac Deville and the low coolant

I had the same problem and they suggested that I add GM tabs to the collant system to keep it from and very slow and tiny leak. They added the tabs and the low coolant light stopped.

Posted on Apr 18, 2009

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1 Answer

When the check coolant level come on what do I do when the reservoir is full?


If the light is on and the coolant level is full, you have a sticky switch in the reservoir, You might be able to remove and clean or you have to replace switch,,


Sometimes it's part of the Reservoir and you have to replace the whole unit ..

Jun 04, 2015 | 2001 Cadillac DeVille

1 Answer

My early wRning light for low radiator fluid comes on at the start turn on my ignition, but it goes away shortly after. I bought 50/50 and filled the coolant reservoir to the full line. But the light still...


The CHECK COOLANT indicator illuminates when the coolant level is low in the coolant recovery reservoir. The low coolant level switch is probably in or on the coolant reservoir !

Feb 19, 2015 | Cars & Trucks

1 Answer

Why would the coolant light keep coming on when it is full?


Is the reservoir full and radiator and if so check if theirs a sensor on the reservoir if there is a sensor possibly have to replace the reservoir or try and disconnect the sensor and see if light goes out just make sure you have no leaks.

Sep 21, 2014 | 2000 Ford Taurus

1 Answer

The coolant light comes on even tho the coolant is full could it be the fan


the coolant light needs water to keep the light off. Check the coolant level in the radiator and not the reservoir. If the wire to the sender unit is broken or not making good contact then the low light will also come on.

Dec 29, 2013 | 1998 Ford Mustang

1 Answer

I have a 2003 VW Passat 1.8T. When I first start and drive the car, the coolant temp is normal. After a few miles, it will suddenly climb to the red, and STOP check coolant comes on. If I loosen the cap to...


Has coolant level been going down in return reservoir at all, as in have you had to add coolant recently to bring it up to top level? Have you tried running engine from cold, with heater on and let it run up to normal temperature with cap off return reservoir? If not do so, and watch level in reservoir and if it goes down, add as needed until engine running at normal, and not overheating. Allow rad fan to kick on & off a few times before re-installing cap on reservoir. Pay close attention to engine temp while doing this. If it goes high, shut it off and let cool. Be careful, my son's Passat just had overheat problem and turned out to be impeller on water pump ( internally) was spinning on shaft of pump. Thermostat is certainly a consideration if coolant is full, and all air bled out. Keep me posted on what happens when you run with cap off and keep reservoir full. Don't forget, heater on while doing this.

Dec 05, 2012 | Cars & Trucks

1 Answer

The low coolant light keeps comeing on but the coolant is full and the car will stall sometimes when coming to a complete stop


Bad coolant level sensor on reservoir, stalling may be a torque converter lockup issue.

May 02, 2012 | 1999 Saab 9-3

1 Answer

How do i remove engine coolant cap on 2001 cadillac dhs


WAIT UNTIL YOUR ENGINE IS COLD,YOUR RADIATOR PRESSURE CAP IS LOCATED ON THE COOLANT OVER FLOW RESERVOIR, THATS WHERE YOU ADD COOLANT WHEN COOLANT LOW,YOU POUR COOLANT IN THE OVER FLOW RESERVOIR UNTIL COOLANT LEVEL REMAIN AT FULL COLD MARK DONT OVER FILL OVER FLOW RESERVOIR, WHEN COOLANT LEVEL STOP DROPPING WHEN ADDING COOLANT AND COOLANT LEVEL STAY AT COLD MARK ON THE RESERVOIR YOU RADIATOR HAS THE CORRECT COOLANT LEVEL IF COOLANT LEVEL KEEP DROPPING CHECK FOR COOLANT LEAKS AROUND RADIATOR AND THE TOP AND BOTTOM RADIATOR HOSES, LOOK FOR COOLANT LEAK AT WATER PUMP GASKET OR SEAL OR LEAK AT WATER PUMP WEEP HOLE IF YES REPLACE WATER PUMP.

Oct 23, 2011 | 2001 Cadillac DeVille

3 Answers

The low coolant light keeps coming on but the reservoir is full, what is causing this to happen?


let the motor cool ,, remove the radiator cap slowly with a rag , check the level of fluid in the radiator itself,, you may have a plugged line from the reservoir itself thats not allowing passage back and forth.

May 04, 2011 | 2003 Saturn VUE

2 Answers

Car does not use antifreeze from the fill tank. I have to put it straight into the rad.


IT COULD BE A BAD RADIATOR CAP! EITHER CLOGGED, OR WRONG PRESSURE! ANY PARTS STORE CAN GET YOU THE RIGHT CAP!

Feb 19, 2011 | 2006 Chevrolet Impala

2 Answers

Just had the water pump and serpentine belt fixed and now my "low coolant" light just came on. what does this mean?


Hi:
That warning light comes on when the level of coolant in the plastic reservoir tank becomes low. It is possible that the tank just needs topped off after the work on your car was performed. Basically, check the coolant and fill as needed, then keep an eye on your level to make sure there are no leaks on your vehicle since it was worked on.

Mar 25, 2010 | 1996 Saab 900

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