Question about 2004 Saturn ION
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Posted on Jan 02, 2017
This is the upper intake manifold, also known as the plenum. Cost is around $400, try and find a used one or just try to fix this one with JB Weld epoxy
Posted on Oct 08, 2008
I had the same problem. My 2004 Ion had 85000 miles on it. It was a bad sensor. The whole coolant reservoir tank needs to be replaced to fix the problem. This was covered under the extended warranty that we had. If you are doing this repair yourself, a hose clamp tool is recommended for simplicity.
Posted on Jan 03, 2009
Hi and welcome to FixYa,
Offhand, your described condition indicates a sticking thermostat, that is there is considerable delay before the thermostat opens. It is also possible that there is some restriction wherein the thermostat is not opening completely when the triggering temperature has been reached. As a test and to confirm, you could try temporarily removing the thermostat and operate the engine without one; observe temperature. The side effect of this test is that it would take some time to warm-up the engine, but operationally should not cause anything untoward. Of course, care has to be exercised that the gasket would still be intact.
Good luck and thank you for using FixYa.
Posted on Feb 11, 2009
take the thermostat out and heat it up in a pan of water to see if it will open when it gets hot.
you should see it open when it gets hot.use a cooking thermometer to watch the temp. it should open between 180 and 225 deg.
Posted on Aug 04, 2009
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