I open the cap on my over flow tankand it shows that I need to add antifreeze so I do. But only like an ounce at a time I can't seem to get enough antifreeze into the block to get the message CHECK COOLANT LEVEL to go out. Is there a way to put the antifreeze in or does it have to be put in under pressure?
Bad thermostat o the water pumps. Is bad
Sometimes the only fill cap in the system is on the "overflow" bottle. Which is actually called a "Degas" bottle, as long as it has a pressure cap on it. If you are getting a message for "low coolant" on the information display on your dash, and the coolant isn't very low, then you need a new Degas bottle because the coolant lever sensor is stuck down thinking it's low. Sometimes you can tap firmly on the Degas bottle with a mallet, and the sensor will free itself temporarily.
SOURCE: reset check coolant level message
the floater inside the coolant gets stuck t wont overheat it is just a pain to see the light all the time
SOURCE: 99 deville head gasket leak?
A head gasket leak is usually indicated (among other things) by continous overheating of the motor, and subsequent loss of coolant.
It can also be indicated by the presence of engine combustion gas bubbles in the coolant resevoir.
Ensure the coolant system has no external leaks, such as faulty hose/s, radiator etc.
Ensure motor tune or other motor mechanical condition is not the cause of overheating.
I assume the motor is actually running hot.
Check cooling fans are operating ok (as necessary when car warms up):- if not check
1) fuse,
2) relay operation,
3) heat sensor switch.
Check/replace the thermostat,
Check the coolant pressure cap is serviceable & of correct rating,
Ensure cooling system is correctly filled, bleed off any airlocks as necessary when re-filling,
Ensure radiator hose on suction side of waterpump is not collapsing at engine revs above idle (due softening),
If the motor has been severely overheated, the head gasket could be blown - look for combustion gas bubbles in the coolant resevoir.
Testimonial: "thx..my car is not overheating.only had to pull off road once.it does get to 233 sometime."
SOURCE: 94' Eldorado adding coolant
Yes! Add coolant when the engine is cold to the marks on the tank.
Testimonial: "Your first response would work on just about every car ever made, but the 2nd comment u left was what i was really looking for. Thank u"
SOURCE: The cooling system in my
This sounds like a blown head gasket. You can purchase a kit that when used per the instructions you will know for sure
that it is a blown head gasket. You might try some of the sealers that are on the market but I do not back any of these half way fixes. I was a professional Cadilliac Technician for over 30 years. FIX IT RIGHT THE FIRST TIME
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