Question about Cars & Trucks
I guess what you are saying is your low coolant warning light is on and you went to autozone to ask why. Right ?
If the low coolant light is on and the radiator and overflow tank are full, the coolant level sensor may have failed. You don't use a scanner to check it, you use a meter.
Posted on Dec 12, 2012
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Posted on Jan 02, 2017
Check the coolant top up reservoir. Low coolant sensor is usually in the overflow/reserve container.
Wash out and clean any dirt or corrosion from the sensor prong.
Refill to correct level with fresh coolant, then recheck alarm operation.
Posted on Jul 17, 2009
SOURCE: Low Coolant Light Staying on
This car has sensors on it. If the coolant tank is full and the system is working properly, then one of the sensors is bad.
Have the cooling system presure tested to make sure you have no leaks. If test is good, then look to the sensors.
GM has different systems for each car depending on configuration, so it is hard to point to the one that may be bad.
Posted on Apr 05, 2009
You could possibly have air trapped in the heater core. The easiest way to bleed it out is to jack up the front of the car till the radiator fill cap is higher than the upper heater hose using a funnel that fits snuggly in the filler neck of the radiator, fill till you have about three inches of coolant/antifreeze above the filler neckthen run the car at about 1500rpms until no more bubbles are evident. Also turn the heater onto face on low speed and feel if heat starts comming out.
Posted on Dec 07, 2009
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