Low coolant light
#1
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Wifey has a 98 Z28 and the low coolant light is on. Radiator is full. Is this the sensor that is about 4" below the rad cap? Does it fail often? Easy to replace? I would imagine that this light being on also make the check engine light come on. Car does not run hot. Lots of miles, close to 190k.
#7
TECH Enthusiast
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Common chain of events with these sensors is as follows: Sensor fails. Remove and clean. Works for a little while or doesn't work. Replace when it fails again or if cleaning doesn't work. Stops working again. Clean it. Does nothing. Replace again. Light is still on with new sensor. Clean pigtail. No difference. Replace pigtail. Light is still on. Unplug light and check coolant manually. Life is happy hunky-dory and your dash isn't lit up.
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#8
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Common chain of events with these sensors is as follows: Sensor fails. Remove and clean. Works for a little while or doesn't work. Replace when it fails again or if cleaning doesn't work. Stops working again. Clean it. Does nothing. Replace again. Light is still on with new sensor. Clean pigtail. No difference. Replace pigtail. Light is still on. Unplug light and check coolant manually. Life is happy hunky-dory and your dash isn't lit up.
#11
Save the manuals!
iTrader: (5)
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The sensors are not very durable but they are a necessary evil for an aluminum block. Better to get a new sensor than risk a low coolant situation that might deform the block.