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Old 04-01-2008, 08:09 AM   #1
Writerbecky12
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2003 ION-1 Sedan
Question Coolant light coming on but coolant level is fine. Help?

This started about a week ago, always after idling for a short time and then beginning to drive again. The coolant indicator comes on and then goes off after several minutes. We checked the coolant level and added just a little coolant (it appeared really close to the line). My temp gauge is fine - not even close to overheating.

Could this be a bad sensor? Any other ideas?

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Old 04-01-2008, 06:10 PM   #2
uti1501
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Default Re: Coolant light coming on but coolant level is fine. Help?

Ive seen this happen many times in the ION,what's happenniing is that your coolant level switch/float is getting stuck wich gorunds the circuit to illuminate the "coolant level indicator" to correct this replace your coolant reservoir,switch not available seperately,hope this helps

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Old 04-02-2008, 06:04 PM   #3
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2004 ION-2 Sedan
Default Re: Coolant light coming on but coolant level is fine. Help?

Can you try to clean this first.

I have never tried or looked into it at all.

so this ia pure guess

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Old 04-11-2008, 11:04 AM   #4
Writerbecky12
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Default Re: Coolant light coming on but coolant level is fine. Help?

Does anyone know if there has been a TSB issued on this, since it seems to be a common problem in the ION?

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Old 04-11-2008, 07:15 PM   #5
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Default Re: Coolant light coming on but coolant level is fine. Help?

there are not tsb for this. An easy way to check it is to disconnect the connector from the sensor. Make a jumper wire across the connector. You can use a small paper clip or wire just be careful!!! If your light goes out then you have a bad coolant level sensor or stuck sensor.. Most likely its bad/shorted. GL

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Old 04-12-2008, 02:26 PM   #6
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Default Re: Coolant light coming on but coolant level is fine. Help?

it only does it on my car after startup on a cold day..

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Old 06-19-2008, 10:52 AM   #7
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Default Re: Coolant light coming on but coolant level is fine. Help?

I took my 2007 Ion on a 1300 mile trip last week. Once on the way to my destination and once on the way home, COOLANT would illuminate and 5 or 6 chimes would rings quickly.

Does 5-6 chimes simply mean its the computer saying it's time to change the coolant?

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Old 06-19-2008, 11:19 AM   #8
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Default Re: Coolant light coming on but coolant level is fine. Help?

Quote:
Originally Posted by id4rox View Post
I took my 2007 Ion on a 1300 mile trip last week. Once on the way to my destination and once on the way home, COOLANT would illuminate and 5 or 6 chimes would rings quickly.

Does 5-6 chimes simply mean its the computer saying it's time to change the coolant?
no its getting a faulty reading and thinks the overflow tank is low it chimes so you look at the dash

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Old 06-19-2008, 03:05 PM   #9
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Default Re: Coolant light coming on but coolant level is fine. Help?

Quote:
Originally Posted by 06_Ion2 View Post
it only does it on my car after startup on a cold day..
mine did exactly the same. I flushed the system (at 4yrs and 44000 miles) and the problem went away.

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Old 06-21-2008, 02:11 PM   #10
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Default Re: Coolant light coming on but coolant level is fine. Help?

Strange. I've gotten a Coolant light too usually when I turn the Ignition to "ON" (Not Start) and I sometimes get Coolant, Power Steering, TRAC Control off...

Nothing seems wrong and other times after starting the car I sometimes get a "ghost" chime that suggests something is amiss but there nothing to see on the dash (text or light or gauge).

It's been almost 5 years so a Coolant Flush is due...

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