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Why is my low coolant light flashing in my 1994 cutlass supreme s?
Wiki User
∙ 13y ago
It could be low on coolant. It could have air in the cooling system and needs to be burped. It could be a fault low coolant switch or the associated wiring.
There are 2 coolant locations.
1) there is an expansion tank (white plastic) connected to the radiator filler neck via a hose.
2) There is the radiator itself. Check the radiator by opening the radiator cap when the engine is cold. (no pressure in cooling system. ) Visually examine level or coolant -- should be at or near radiator cap neck.
3) on a '96 the coolant sensor is located on the left side of the radiator about 6 inches down from the top.
A stop leak additive or debris in cooling system will fake out the sensor causing the light to flash. Solid on, coolant may actually be low in the radiator and the cooling system will need to be bled of trapped air.
On the '96 there are 2 locations to bled with brass plug/screw.
One in the pipe sending coolant across the front part of the engine.
The second is a plug in the intake manifold on the right, topside.
If the hose between the coolant recovery tank and the radiator leaks, then air will get into the system. Also if water pump seal fails, same problem.
Wiki User
∙ 13y ago
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