Hi Mike,here's a link to the low coolant sensor,could be bad.http://www.autozone.com/autozone/repairinfo/repairguide/repairGuideContent.jsp?fromSearchPage=true&pageId=0900c15280067b8c&partName=Low+Coolant+Sensor&partId=0900c15280067b8c Here's another link to the part.http://www.autozone.com/autozone/parts/Duralast-Sensor-Radiator-Coolant-Level/1991-Buick-Regal/_/N-itcyeZ9pehj?itemIdentifier=349767_0_0_1568
SOURCE: 1996 Buick regal over heating
Hi,
Check the sensor and wiring from it for a short.
Hope this is an easy fix for you.
SOURCE: Low Coolant light flashing on 1996 Buick Regal 3.8
The low coolant sensor should be located in the passenger side radiator tank, You need to take it out and clean the sludge off of it for it to work right. Or you can just unplug it and forget about it, the light will go out and it won't cause any problems.
SOURCE: Low Coolant Light
Why is it low? Leaking? The dumbest thing they sell is a 50/50 mix of antifreeze. You are getting 50% water and 50% coolant. Just buy a 100% antifreeze jug add it first and top it off with water. If the water is not low you may hve a bad coolant level sensor. It snaps into the radiator tank and is easy to replace when cold.
SOURCE: 2001 Buick Regal GS How to turn off " Low
check sensor on reservoir. Unplug connector to sensor to see if light goes out. If yes, replace sensor. If no, wire may be shorted.
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