2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.

Constant warning buzzer, but no warning lights are lit?

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Old Oct 22, 2006 | 09:23 PM
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Constant warning buzzer, but no warning lights are lit?

After putting on some new engine mounts and running the car for a few minutes, the buzzer came on that normally indicates redline, low oil, or low coolant. None of the lights on the cluster illuminate. and I know for a fact that I am not low on oil. Can this buzzer go off for low coolant even if the light is not lit? Also, is there a possibility that the vibration from the new mounts caused something to disconnect? If so, where can I check for loose connections?

Thanks- Jason
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Old Oct 22, 2006 | 09:50 PM
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Do the lights work? Did you check the wires coming from the coolant and oil level sensors?
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Old Oct 22, 2006 | 10:15 PM
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Yes, the lights do work (they turn on while starting or in the on position, and then go off once the car is started). I still have to check the wire for the oil, but I cant do it till tomorrow afternoon since I'd have to put it on a jack to see the oil pan.
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Old Oct 23, 2006 | 02:29 AM
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Originally Posted by JasonDowney
...I know for a fact that I am not low on oil. Can this buzzer go off for low coolant even if the light is not lit?
Did you check the radiator level before posting?

If both fluid levels are okay, see the FSM Body Electrical System chapter for troubleshooting the warning system.
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Old Oct 31, 2007 | 05:11 AM
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Warning buzzer

If the low coolant level sensor does not have a ground (water) then it will go off approx. 3 seconds after the car is started. You can ground the pig-tail but this is not recommended.
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