i have a 1994 cutlass supreme the low coolant light comes on aand off but the coolant is not low. what could possibly the reason?

Asked by Oct 20, 2012 at 04:04 PM about the 1994 Oldsmobile Cutlass Supreme 4 Dr S Sedan

Question type: Maintenance & Repair

5 Answers

9,435

there is a SENSOR, that determines the level of coolant IN THE RADIATOR, keep in mind, that because the reservoir or radiator seem full, a blockage can prevent flow, are you having over heating issues?

3 people found this helpful.
95

just to add to what John said about the blockage, be sure to assess that ASAP, because those 60* V6s love to fry headgaskets. if theres not a blockage, than just replace the sensor or if you are willing to check it often just disconnect the wire to eliminate the light

3 people found this helpful.
5,045

I had a '94 Bonneville that did that. I discovered debris blocking the tube that goes from the rad to the overflow cannister. Cleaned it out and never had the problem again.

3 people found this helpful.

'95 Olds Cutlass Supreme Convertible. 3.4L DOHC engine. Had the light come on several times. After ensuing heart attack, I removed the sensor (located just below the transmission oil cooling line on the passenger side of the radiator) cleaned it out with a tooth brush ( not mine), re-installed and all is well. Not sure how long the coolant has been in there ( smelled of dinosaurs when I opened the cap) so I changed that too to avoid contaminating the sensor again. Drive a car for 24 years and 300,000 KM and have a problem. What a piece of junk! (just kidding of course.)

5,045

Nice car. Looks great for 300 K. I have the same one. My favourite car to drive.

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