Having problems with your 1999 Cadillac Eldorado ?

AIR CONDITIONING COMPRESSOR WILL NOT COME ON THE SYSTEM IS FULLY CHARGED. DASH INFO CENTER SAYS LOW COOLANT A/C OFF.

Posted / edited by AnonymousUser on : 19-10-2020

Answers :

Per information you supplied,"LOW COOLANT" and "A/C OFF"

These are two different events.

==

The coolant level sensor on the coolant reserve tank (passenger front) giving an condition of low radiator coolant fluid level condition to the climate control module.

Please check the coolant reserve tank level when the car is cold and while park on a level ground.

Coolant system need to be flush and fill every 2 years.
More frequent if you drive in the city frequently.

The dirty coolant is settle onto the bottom of the coolant reserve tank and it will cause false low coolant sign.

====

The climate sensed the coolant level is low and it haul the A/C function.

A/C require a lot of energy to ran.

====

The fix is to flush and fill the coolant system.

Pay close attention to the reserve tank level sensor and its connector.


Clean the contacts.

Fill the coolant with 50/50 mix.

If the error is still remain then I strongly recommend you to purchase a new coolant level sensor.

Please email me after you complete the coolant flush and fill.


I will follow up on all emails during this weekend,
Repair Help & Product Troubleshooting for 1999 Cadillac Eldorado

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