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indy4192
User
Nov 2, 2010, 4:36 PM
Post #1 of 2
(1492 views)
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engine coolant light
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2004 Saturn ion
120,000
A friend of mine has a 2004 Saturn ion3 with about 120,000 miles on it. It runs great except for one thing. From time to time her coolant light will come on for a brief time and then go off. It only does it when the temp outside is cool. She went all summer without it happening at all, but now just like last fall as the temps outside have cooled down, the indash coolant light will come on, stay on for a bit and then go off and then do it again. Doesn't do it all the time, and outside of the outside temp being cooler, no other issue seems to impact it. The engine does not overheat and the fan comes on when needed to cool the engine temp down when needed. What might cause this engine coolant light to come on even though the engine temp is not getting hot?
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Sidom
Veteran
/ Moderator
Nov 3, 2010, 4:47 PM
Post #2 of 2
(1482 views)
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Re: engine coolant light
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On those there is a coolant light that comes on if the level gets low.......GM has plenty of problems with their sensors....They will come on when the system is full...
You can try disconnecting the level sensor, if this takes care of the intermittent light problem, then the problem is in the level circuit and it has either a bad sensor or wiring problem...........
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