Low coolant light blinks

Tiny
TTWADE
  • MEMBER
  • 2001 CHEVROLET LUMINA
My low coolant light blinks from time to time. I am not low on coolant and the car does not overheat. Please advise of what the problem may be.
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Friday, May 30th, 2008 AT 9:10 AM

62 Replies

Tiny
DNAPRORACING
  • MEMBER
There is a sensor is about $38.00 on the side of the radiator that needs to be replaced. Here is a guide to show you how to drain the coolant before you begin:

https://www.2carpros.com/articles/coolant-flush-and-refill-all-cars

Check out the diagrams (below). Please let us know if you need anything else to get the problem fixed.

Cheers
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Friday, May 30th, 2008 AT 6:22 PM
Tiny
2CARPROS-ARCHIVES
  • MEMBER
  • 1997 CHEVROLET LUMINA
  • 194,000 MILES
Low coolant light come on and stay on for about a mile driving then it goes out. The radiator is full of coolant. What caused the low coolant light to come on?
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Monday, July 23rd, 2018 AT 2:06 PM (Merged)
Tiny
ASEMASTER6371
  • EXPERT
There is a sensor on the side of the radiator that needs to be replaced. Here is a guide to show you how to drain the coolant before you begin:

https://www.2carpros.com/articles/coolant-flush-and-refill-all-cars

Check out the diagrams (below). Please let us know if you need anything else to get the problem fixed.

Cheers, Roy
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Monday, July 23rd, 2018 AT 2:06 PM (Merged)
Tiny
DIESEL9486
  • MEMBER
  • 1997 CHEVROLET LUMINA
Six cylinder front wheel drive automatic.

A week ago my low coolant light came on. At first I did not understand what it is for. One night while driving my car started to run hot and it started to smoke. Somebody informed me that it was because of no antifreeze. A week prior to this my heat stopped working as well. So when I put the antifreeze in it started to leak. What could be the initial problem? I am hearing that it could be from a leak in my radiator, I might need a new thermostat, or something about my hoses. Can you please help me out if possible?
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Monday, July 23rd, 2018 AT 2:06 PM (Merged)
Tiny
JACOBANDNICKOLAS
  • EXPERT
Hi,

What section of the engine area is the coolant leaking from?

Joe
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Monday, July 23rd, 2018 AT 2:06 PM (Merged)
Tiny
AGMINTHESTL
  • MEMBER
  • 1997 CHEVROLET LUMINA
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 165,000 MILES
My coolant low light flashes for a while then as I ride it stays on. When I check it has enough in it, but the hose from the radiator is tight and the hose coming from the fan is also.
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Monday, July 23rd, 2018 AT 2:07 PM (Merged)
Tiny
BLUELIGHTNIN6
  • EXPERT
The level sensor attached to the bottom of the coolant tank is probably faulty and sending false signal.
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Monday, July 23rd, 2018 AT 2:07 PM (Merged)
Tiny
NAPALEGEND
  • MEMBER
  • 1997 CHEVROLET LUMINA
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 75,000 MILES
Hi Gentlemen. The low coolant light just started staying on a week ago. Sometimes it also blinks intermittently. I never overheated it, but my daughter just used it and said it did not on her either. Coolant overflow is full, no apparent leaks, no sweet smell from exhaust. Please help. Thanks, Gordon Pittsburgh Pa.
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Monday, July 23rd, 2018 AT 2:07 PM (Merged)
Tiny
JALOPYPAPA
  • MEMBER
Have you checked the sensor and its wiring? Should be near the top of the radiator. If you have an ohmmeter, you might check the sensor and replace if resistance is infinite.
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Monday, July 23rd, 2018 AT 2:07 PM (Merged)
Tiny
2CARPROS-ARCHIVES
  • MEMBER
  • 1997 CHEVROLET LUMINA
  • 194,000 MILES
Low coolant light come on and stayed on for about one mile driving and then it went off?
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Monday, July 23rd, 2018 AT 2:07 PM (Merged)
Tiny
FIXITMR
  • MEMBER
Could be faulty sensor. Or wires.
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Monday, July 23rd, 2018 AT 2:07 PM (Merged)
Tiny
BRONCO2977@YAHOO.COM
  • MEMBER
  • 2000 CHEVROLET LUMINA
  • 206,000 MILES
Just replaced intake manifold gasket, radiator, water pump, thermostat and hoses. It keeps running hot and leaking antifreeze. Check engine light and low coolant light just popped on and to top it off my heater is blowing out cold air.
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Monday, July 23rd, 2018 AT 2:07 PM (Merged)
Tiny
RIVERMIKERAT
  • MEMBER
Where is it leaking antifreeze from? Sounds like that leak needs to be fixed.
Heater blowing cold air is probably due to no or low coolant.
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Monday, July 23rd, 2018 AT 2:07 PM (Merged)
Tiny
TRUCKSTUFF23
  • MEMBER
Check your oil if its milky then it sounds like a blown head gasket
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Monday, July 23rd, 2018 AT 2:07 PM (Merged)
Tiny
GADIR
  • MEMBER
Check your heater hoses and check also inside of cab. Start to check all coolant lines from radiator to radiator. When you change parts I think you forgot to connect one coolant hose.
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Monday, July 23rd, 2018 AT 2:07 PM (Merged)
Tiny
RIVERMIKERAT
  • MEMBER
Bronco, any news?
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Monday, July 23rd, 2018 AT 2:07 PM (Merged)
Tiny
BRONCO2977@YAHOO.COM
  • MEMBER
It is leaking coolant under the alternator area.
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Monday, July 23rd, 2018 AT 2:07 PM (Merged)
Tiny
RIVERMIKERAT
  • MEMBER
Water pump is somewhat below the alternator.
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Monday, July 23rd, 2018 AT 2:07 PM (Merged)
Tiny
BRONCO2977@YAHOO.COM
  • MEMBER
Okay, got the leak fixed. It was the timing cover gasket.
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Monday, July 23rd, 2018 AT 2:07 PM (Merged)
Tiny
RIVERMIKERAT
  • MEMBER
Interesting. Glad to know it has been fixed.

Closing thread.
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Monday, July 23rd, 2018 AT 2:07 PM (Merged)

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