Low coolant light blinks

Tiny
KALEEL8
  • MEMBER
  • 1 POST
  • 1999 CHEVROLET LUMINA
Six cylinder front wheel drive automatic.

My low coolant light started to blink now it stays on constantly. The engine does not overheat and is full of coolant.
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Monday, July 23rd, 2018 AT 2:08 PM (Merged)
Tiny
BLUELIGHTNIN6
  • MECHANIC
  • 16,542 POSTS
Low coolant sensor has failed and needs replaced.
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Monday, July 23rd, 2018 AT 2:08 PM (Merged)
Tiny
NICKHEADZ34
  • MEMBER
  • 62 POSTS
Coolant sensor is bad. Its on the side of the radiator. I just disconnected mine. It is like a $35.00 sensor at Napa for an over the counter price.
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Monday, July 23rd, 2018 AT 2:08 PM (Merged)
Tiny
SCHMALEN
  • MEMBER
  • 8 POSTS
Low coolant sensor has failed!

Hello I am from germany, and my car has the some problem, where can I buy this coolant sensor? Is that possible that can I got an Partnumber from that sensor

kindley regards

andreas
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Monday, July 23rd, 2018 AT 2:08 PM (Merged)
Tiny
NICKHEADZ34
  • MEMBER
  • 62 POSTS
I work at napa. And the echlin part number is FLS 614. Good luck.
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Monday, July 23rd, 2018 AT 2:08 PM (Merged)
Tiny
CRAPPYTHECAR
  • MEMBER
  • 1 POST
  • 1996 CHEVROLET LUMINA
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 150,000 MILES
My low coolant light has just started to flash when the car is registering a normal temp. My husband has checked the coolant level which is normal, the coolant looks bright green. I have owned the car 3 years and the low oil light has been on since then, regular maint, no other issues. Six months ago the oil light went out and the brake light came on and has stayed on. Now when the Low Coolant light comes on it is after the brake light has gone out. I know I have been reading the repair guide too much, but I am wondering if this is an electrial problem. Car runs and sounds great! Thanks so much for your help. I love my car.
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Monday, July 23rd, 2018 AT 2:08 PM (Merged)
Tiny
919BEECH
  • MEMBER
  • 2 POSTS
  • 1991 CHEVROLET LUMINA
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 180,000 MILES
I get low coolant light at idle, just a few rpm's and light will go out. Radiator and low coolant sensor have been changed. Coolant level in overflow box is correct.
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Monday, July 23rd, 2018 AT 2:08 PM (Merged)
Tiny
SERVICE WRITER
  • MECHANIC
  • 9,123 POSTS
Try checking the harness the plugs into the reservior for a poor connection of corrosion. Also try tapping and the sensor to see if the light reacts. You may have a defective sensor even though it is new.
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Monday, July 23rd, 2018 AT 2:08 PM (Merged)
Tiny
DOUG RODRIGUES
  • MEMBER
  • 11 POSTS
If the probe on the coolant sensor has accumulated crud, that will stop it from giving a proper reading. The sensor is cheap to buy and easy to replace.
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Monday, July 23rd, 2018 AT 2:08 PM (Merged)
Tiny
HFIELD06
  • MEMBER
  • 1 POST
  • 1998 CHEVROLET LUMINA
Engine Cooling problem
1998 Chevy Lumina 4 cyl Automatic 61000 miles

I have just noticed a few days ago that my Low Coolant light is flashing. Not a steady light but a flashing one. The engin is not running hot acording to the gage in side the car and it seems to be running like normal. I did check the coolant level and I was told I should add some since it was low (below the cool mark but not empty). I did and added the correct kind according to the manuel. However the light continues to flash. It happens almos right after starting it up.

Could there be just a short? Could the system not be working correctly? ( I have found no leaks). Is this something I need to have someone take a look at?

Thank you
Heather
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Monday, July 23rd, 2018 AT 2:08 PM (Merged)
Tiny
MMPRINCE4000
  • MECHANIC
  • 8,548 POSTS
You will probably have to replace the low coolant sensor.
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Monday, July 23rd, 2018 AT 2:08 PM (Merged)
Tiny
VSW
  • MEMBER
  • 1 POST
  • 1999 CHEVROLET LUMINA
Engine Cooling problem
1999 Chevy Lumina 6 cyl Front Wheel Drive Automatic

My low coolant light keeps blinking, but I have plenty of coolant in my car. What can it be? My temperature gauge also does not seem to be working.
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Monday, July 23rd, 2018 AT 2:08 PM (Merged)
Tiny
MMPRINCE4000
  • MECHANIC
  • 8,548 POSTS
When engine is cold remove radiator cap and make sure the coolant is full.

If so, then the low coolant sensor may be bad. The temp. Gauge sender may also be bad. Check all fuses first and make sure the coolant is full.

You may be better of having the cooling system flushed and fresh coolant added.

If equipped with Dex-Cool, it may have sludged up and caused a blockage or the sensors to not read correctly.
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Monday, July 23rd, 2018 AT 2:08 PM (Merged)
Tiny
TWOO46
  • MEMBER
  • 4 POSTS
  • 1995 CHEVROLET LUMINA
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 144 MILES
Low Coolant Light stay on when driving, I check the engine coolant level in the reservoir tank it was ok can you help me on this Thanks
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+1
Monday, July 23rd, 2018 AT 2:08 PM (Merged)
Tiny
EUGENE123
  • MECHANIC
  • 273 POSTS
When your driving the coolant may be having a problem circulating through the system. This could be caused by a bad water pump or air in the coolant lines, or maybe a stopped up heater core
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Monday, July 23rd, 2018 AT 2:08 PM (Merged)
Tiny
ACTIONJACK
  • MEMBER
  • 1 POST
  • 1999 CHEVROLET LUMINA
  • 132,000 MILES
My low coolant light flashes on and off about every ten seconds. My coolant is not low. There are no leaks internally nor externally. Also it is not running hot
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Monday, July 23rd, 2018 AT 2:08 PM (Merged)
Tiny
PROMECHANIC
  • MECHANIC
  • 536 POSTS
There could be a problem with the coolant level sensor. This is a fairly common cause of this type of problem. Another thing to check is that the wiring is all in good condition and the connection is clean and tight.
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Monday, July 23rd, 2018 AT 2:08 PM (Merged)
Tiny
SHARON GUITERREZ
  • MEMBER
  • 1 POST
  • 1999 CHEVROLET LUMINA
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 100,518 MILES
The low coolant light keepls blinking, the radiator is not low, the ovre-flow bottle is OK and the temp. Gauge is normal. Could this be just the electrical problem with the light? Is there any way the water may not be circulating like is should and the light blinks because of that?
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Monday, July 23rd, 2018 AT 2:08 PM (Merged)
Tiny
BUSTEDNBROKEN
  • MEMBER
  • 8 POSTS
There is a coolant level sensor on the side of the radiator. It is fairly common for them to go bad. If you don't mind the blinking light just check your coolant once in a while(thats the way we done it before we had cars tellin us=). Otherwise you may have to replace the sensor, assuming the wiring is not broken.
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+2
Monday, July 23rd, 2018 AT 2:08 PM (Merged)
Tiny
GRIMMY523
  • MEMBER
  • 3 POSTS
  • 1993 CHEVROLET LUMINA
My low coolant light atays onalmost all the time. Fluids are good never overheats. It stays in the right temp. Is threre something wrong with the light maybe.
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Monday, July 23rd, 2018 AT 2:08 PM (Merged)

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