2005 Saturn Ion Coolant Warning

  • 2005 SATURN ION
Engine Cooling problem
2005 Saturn Ion 4 cyl Front Wheel Drive Automatic

I drive a 2005 Saturn Ion. The Coolant warning keeps coming on in the odometer panel, even though the car is not running hot or showing any signs of temperature issues. The car however idles very rough (Sometimes stalling) in slow moving Traffic. Particularly when I take my foot off the gas. My check engine light keeps coming on returning a P0300 code. I have learned from the internet that my problem may be a bad sensor, coolant level sensor to be exact. But I have not been able to locate such a part. The only part that comes close for the model Saturn I drive is the engine coolant temperature sensor. My question is, is the engine coolant sensor the part I should have looked at or, am I totally barking up the wrong tree.
Do you
have the same problem?
Tuesday, June 16th, 2009 AT 7:31 PM

1 Reply

Its the right tree. The sensor is usually located in the bottom of the resevoir where you fill the system. Should be a 2 wire plug. You most likely will have to buy the entire bottle to make the light go out, call the dealer to check. As far as the other code, you may need a tune up to start. That code is a"random cylinder misfire" ususally you would start out with a tune up first to be sure the base stuff is good, then see if the code returns and go from there
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Wednesday, June 17th, 2009 AT 7:54 AM

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