Question about 1996 Chevrolet Cavalier

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Low coolant light stays on, coolant level is full

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  • Master
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Check coolant level sensor, sit in the coolant resv. tank has two wire that go to it, tap on tank see if light goes off, if it don't replace sensor easy to do, part run's about $12.00 - $20.00, part # FLS609 at NAPA. Hope this was helpful.

Posted on Dec 11, 2009

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  • Master
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If the coolant level is full then the coolant level sensor is faulty and must be replaced.




Posted on Dec 11, 2009

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Posted on Jan 02, 2017

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SOURCE: how do i disable a low coolant sensor

the sensor is bad but you cant disconnect it it will still keep the light in, you could try disconnecting the switch and run a jumper wire from one terminal to the other and loop it ,that might turn the light off,might

Posted on Oct 07, 2009

leetamara
  • 702 Answers

SOURCE: 'low coolant"

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

  • 114 Answers

SOURCE: Low Coolant light stays on

Check you coolant resevoir. The low coolant switch is located in the resevoir so if it is low on coolant there, the light will come on. If it is full, it could be that the switch is stuck due to gunk build up in the resevoir. Hope this helps you out

Posted on Jan 19, 2009

emissionwiz
  • 83514 Answers

SOURCE: replace coolant level sensor

THESE SENSORS ARE A KNOWN PROBLEM REPLACE IT, IT IS HELD IN BY A WIRE RETAINER CLIP, IT IS LOCATED IN THE PLASTIC SIDE TANK OF THE RADIATOR NEAR THE TOP OF THE TANK, ENGINE SIDE. THE PART IS ABOUT $60.00

Posted on Jul 17, 2009

saabreur
  • 51 Answers

SOURCE: 1989 Saab 900 low level fuel light

You don;t say whether the fuel gauge is reading accurately, or whether it's always on empty. If the gauge is always showing empty, it's most likely a problem with the sending unit in the fuel tank. Check the resistance across the two terminals of the sending unit.

On a C900, the fuel sender level unit is separate from the fuel pump and located on the right side top of the tank, accessible by removing the trunk floor lift up panel (the pump is located on the left side top of the tank.
Possible problems are: electrical line off or broken, float not working (it's fairly delicate); or gauge not working.

Test the resistance of the sending unit with the lines disconnected, the resistance should be 2.6 to 3.8 ohms full tank, 63.3 to 67.5 ohms empty tank; and test for voltage across the top of the sender unit, if no voltage, that's likely the problem!

If the gauge is otherwise reading accurately (showing 'full' for a full tank, etc) then the problem is likely a gauge malfunction and can be simply replaced.

Good luck!

Saabreur

Posted on Aug 09, 2009

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Check that the wiring and terminals to the sender unit are not broken or dirty. If they are good maybe the sender unit it self is not working.

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