Low Coolant Sensor on 1999 Buick Regal GS (Supercharged) 3800 stays on, but no low coolant in system. Where is the sensor on the GS?

5

Asked by Apr 06, 2016 at 05:42 PM about the 1999 Buick Regal 4 Dr GS Supercharged Sedan

Question type: Maintenance & Repair

My 'mechanic' stated I needed to change the Coolant Reservoir on my
1999 Buick Regal GS (Supercharged,) as he says there is a 'float' in the
rear of the overflow tank that sticks after awhile.  I don't have an issue
doing that, but as I've researched the issue of the low coolant light staying
on, all info seems to say to change the sensor on the radiator itself and no
one speaks about the overflow tank with a 'float' inside???
Someone please tell me which direction to go.

1 Answer

93,155

Your right, none of the tanks I have looked at for a Regal contain a level sensor. So I found it in the side of the radiator. Could not find an exact picture but here is a general pic.

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