Question about 1997 Chevrolet Lumina

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'low coolant" "LOW COOLANT" INDICATOR LIGHT IS BLINKING ON AND OFF, AND COOLANT LEVEL IS AT THE PROPER LEVEL.

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    how to mix coolant and water

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    coolant level low cant see it leeking? 2010 grand caravan

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Inside the surge tank is a float that turns on the "low coolant" light. As the float gets gummed up it gets stuck in the low position. I've had good luck in cleaning the surge tank out really well and ungummed the float so it slides up and down like it should.

Posted on Jul 15, 2008

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Temp gauge in 98 pontiac wont work is there a fuse for it


Hi Tammie, Is the coolant level low ? If not , The engine coolant level switch grounds the indicator with the coolant level in the coolant reservoir below the minimum recommended level. The engine coolant level indicator module is on the right side of the radiator just down below from the radiator cap !
Low Engine Coolant Indicator Always On

Step

Action

Value(s)

Yes

No

1

  1. Disconnect the engine coolant level indicator module connector.
  2. Turn the ignition switch to the RUN position.

Is the low coolant warning indicator ON?
--
Go to Step 2
Go to Step 5

2

Inspect for a short to ground in CKT 68.

Does a short to ground in CKT 68?
--
Go to Step 3
Go to Step 4

3

  1. Repair the short to ground in CKT 68.
  2. Inspect the system.

Is the repair complete?
--
System OK
--

4

  1. Replace the instrument cluster. Refer to Instrument Cluster Replacement .
  2. Inspect the system.

Is the repair complete?
--
System OK
--

5

  1. Replace the engine coolant level indicator module. Refer to Coolant Level Module Replacement in Engine Cooling.
  2. Inspect the system.

Is the repair complete?

Feb 01, 2015 | 1998 Pontiac Grand Prix

1 Answer

My dashboard LOW COOLANT light came on, I had the radiatior flushed, and the light is still blinks


You should first check your coolant overflow tank to make sure there is the proper amount of coolant in it. You MUST check the coolant level when the engine is cold to get a proper reading of the level of coolant. When you open a car's coolant system to flush it is common to get air bubbles in the engine. As the engine warms up, the coolant expands and the excess goes into the overflow tank. When the engine cools, the coolant contracts and it draws coolant from the overflow tank. So, after a flush, you must check the level of the coolant the next couple of times you drive your car because it will take several expanding and contracting cycles for all of the air bubbles to be forced out of the engine. If the level is the same after checking it a couple of times, then you should open the radiator cap check the level there. It should be at the very top of the radiator. (MAKE SURE THE ENGINE IS COLD OR YOU WILL GET BURNED!!!).

If insuring the engine has the proper level of coolant doesn't correct the low coolant light, the next step would be to replace the sensor. In most engines it is just a screw-in plug with a wire on it that transmits to the low coolant gauge in the dash. Most automotive part stores should be able to look up where it is located. It is like changing a spark plug, but you may loose a little coolant out of the engine when you remove the old one, so check the coolant level after changing it.

Good Luck!

Jun 27, 2014 | 2001 Pontiac Grand Prix

1 Answer

MY THERMOSTAT LIGHT BLINKS BLUE


Check the coolant level in the reservoir lasted under the hood on the passenger side near the strut tower. You will see a mark on the reservoir that will indicate the proper fluid level. Only add Volkswagen coolant if needed.

Feb 06, 2014 | 2000 Volkswagen Beetle

3 Answers

Coolant level low light comes on and coolant level is not low in reserve tank or radiator.


There is a TSB for this problem. Here it is.


Bulletin No.: 04-06-02-007

Date: August 11, 2004

TECHNICAL

Subject:
Low Engine Coolant Level Indicator Always On (Diagnose Low Coolant Level System Operation/Check Sensor for Oil Contamination)

Models:
2000-2002 Buick Century, Regal
2000-2001 Chevrolet Lumina
2000-2002 Chevrolet Impala, Monte Carlo
2000-2002 Pontiac Grand Prix
2000-2002 Oldsmobile Intrigue


Condition

Some customers may comment that the low engine coolant level indicator is always illuminated.


Cause

The cause of this condition may be due to engine oil contaminating the coolant. Possible sources of oil contamination are internal engine leaks, improper service procedures, or the addition of some types of anti-leak additives to the cooling system. Once in the coolant, the oil leaves deposits on the level sensor creating an insulating film. This film results in a false activation of the coolant level indicator.


Correction

Diagnose low coolant level system operation and check the sensor for oil contamination using the procedure listed below.


Important: No coolant supplements should be used in GM cooling systems, other than what is approved and recommended by GM. The use of "aftermarket" over-the-counter sealing and cooling supplements may affect the operation of the low coolant level sensor. Discoloration of the coolant recovery bottle is normal and does not necessarily indicate that coolant contamination is present. Flush cooling system only when instructed by this bulletin.

1. Verify that the coolant is at proper level in the radiator and the coolant recovery bottle. If the coolant is low, add proper amount of 50/50 water and DEX-COOL(R) mixture. If the low coolant light operates properly, diagnose the cooling system for loss of coolant as outlined in SI. DO NOT proceed further with this bulletin.

2. Remove the low coolant level sensor. Refer to Coolant Level Module Replacement in the Engine Cooling sub-section.

3. With the key on, the engine off and the coolant level sensor disconnected from the vehicle wiring harness, observe the low coolant light:


^ Light is on - Chassis wiring or instrument cluster concern. Follow the appropriate diagnostic information in SI.

^ Light is out - Proceed to Step 4.



4. With the key off, connect the coolant level sensor into the vehicle's wiring harness. Connect a ground wire (1) to the battery negative terminal. Using a sharp probe (3) attached to the ground wire, ground the coolant sensor probe (2) as shown in the illustration. Make sure a good contact is made. With the key on and the engine off, observe the low coolant light for at least 15 seconds.


^ Light is on - Replace the low coolant sensor and re-check system operation.

^ Light is out - Proceed to Step 5.


5. Using a small wire brush or emery cloth, polish the low coolant level sensor probe to remove any film or oxidation. The probe should be a bright brass color when finished. Use Brake Parts Cleaner to flush removed deposits from the low coolant sensor probe. Re-install the low coolant sensor into the vehicle and proceed to Step 6.

6. Flush the cooling system and install new DEX-COOL(R) mixture as outlined in the SI. Check the vehicle's warranty history to determine if any engine gasket had recently been changed. If there has not been a recent gasket replacement, locate and repair the source of the engine oil contamination.


Oct 31, 2009 | 2002 Chevrolet Monte Carlo

1 Answer

What is the check gauges light


CHECK GAGES light (1) indicates a potential engine failure(low oil pressure, low coolant, coolant overheating) has occurred.
· Check gages and shut down engine. Gages should read as follows: Oil pressure 5 to 10 psi (34 to 69 kPa) at idle; Water Temp gage below 230 degrees (110 C).
· Check engine oil level (Para 2-11) if OIL PRESS gage indicates low reading. Check coolant level (Para 2-11) if Water Temp gage indicates high reading. Notify Unit Maintenance if levels are low.

If CHECK ENGINE light (2) is on, check engine oil pressure gage (3) and water temperature gage (4). If both indicate normal, proceed with mission and then notify Unit Maintenance. If either one does not indicate normal, stop engine immediately and notify Unit Maintenance


Oct 16, 2009 | 1999 GMC Jimmy

1 Answer

COOLANT LEVEL LOW INDICATOR LIGHT ON


There is a small float within the coolant tank, if the coolant level becomes too low the indicator light will illuminate. Bringthe engine up to running temperature, look for any leaks, add coolant to the tank to the proper mark. It should note "leval when hot" this should turn the light off too. If not the float may be stuck in a down or "on" position.
I hope this may have helped,
Tom

Oct 02, 2009 | 2001 Cadillac DeVille

2 Answers

Dashboard lights blinking. One looks like the


check for low coolant level in plastic overflow resorvoir.There is a float inside which activates this blinking indicator.Do this when vehicle is cool ...contents under pressure

Jul 21, 2009 | 1999 Saturn SL

2 Answers

I don't know what the symbol means on my 1999 Pontiac Sunfire


does it look like a radiator? Low coolant sensor, may be in the overflow tank. Check your coolant levels when cold.

Jul 19, 2009 | 1999 Pontiac Sunfire

2 Answers

My low coolant light comes on on a 2001 chevy silverado regular cab pickup. Could a worn out thermostat be causing this?


check level in your overflow bottle-check if sender not sludged and seized-check wires are connected properly

Jul 13, 2009 | 2000 Chevrolet Silverado

1 Answer

Engine coolant indicator light


try turning the key half way but dont turn on the car and hit the gas pedel three times

Jul 15, 2008 | 1997 Chevrolet Lumina

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