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Old 06-01-2011, 10:04 AM
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Default Low Coolant Level Sensor / Idiot Light Issue

Hey everyone,

I recently replaced the coolant level sensor in my wife's '02 Monte. The 'Low Coolant Level' idiot light had been coming on but coolant level was fine. After replacing the sensor, all seemed normal at first. Then the idiot light started coming back on. It now comes on (with an accompanying 'ding ding ding') a couple minutes after the car starts running.

Is there a code that needs to be reset? I didn't think so, but now I'm not so sure.

I suppose it's possible that I got a faulty sensor. Any other thoughts on potential solution?

Thanks in advance for any help you can offer.
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Old 06-01-2011, 10:22 AM
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Did you flush the coolant recently?? It could be gunking up and causing the misreading
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Old 06-01-2011, 11:10 AM
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Quote:
Originally Posted by ChibiBlackSheep View Post
Did you flush the coolant recently?? It could be gunking up and causing the misreading
I replaced the radiator a few months ago. Should be no gunking-up issues.
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Old 06-01-2011, 11:29 AM
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Since it's a sensor the only thing I could think of is to disconnect the battery for an hour and make the PCM pull up new readings for everything.
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Old 06-01-2011, 12:55 PM
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Thanks, Chibi. It's worth a shot and doesn't cost anything. I'll try tonight.
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Old 06-01-2011, 08:22 PM
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I'm having the same problem. I have replaced sensor, thermostat, entire coolant resevoir, flushed out dexcool and refilled w/Prestone yellow. Light still comes on after 20min of driving, never loses coolant or runs hot. I Dunno wth to do...
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Old 06-01-2011, 08:24 PM
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oh yeah, I disconnected battery too
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Old 06-02-2011, 08:17 AM
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Originally Posted by PUNK LIFE View Post
I'm having the same problem. I have replaced sensor, thermostat, entire coolant resevoir, flushed out dexcool and refilled w/Prestone yellow. Light still comes on after 20min of driving, never loses coolant or runs hot. I Dunno wth to do... oh yeah, I disconnected battery too
Well crap... that doesn't bode well for me. The only thing I haven't done is replace the reservoir. The radiator / coolant / thermostat were replaced a few months ago; the coolant level sensor a few days ago. I disconnected the battery for a few hours last night, but I haven't run it since then. When my wife takes her out later today I'll find out if there is any change.
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Old 06-02-2011, 08:05 PM
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Check the wire harness. Unplug the sensor and look at the connector and check for corrosion in the connector. It will be easy to spot. It will be green.
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Old 06-03-2011, 10:19 PM
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Check the wire harness. Unplug the sensor and look at the connector and check for corrosion in the connector. It will be easy to spot. It will be green.
Thanks. Will do.
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Old 06-03-2011, 10:19 PM
 
 
 
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01, 02, 2002, 95, carlo, coolant, level, light, low, monte, mpnte, replacing, reset, sensor, ss


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