M6_Broke_Me Posted January 7, 2006 Share Posted January 7, 2006 '96 Outback. Larger engine (2.5L?) My temperature gauge fluctuates from medium to full hot and back down again while the engine shows no other signs of trouble: No steam boiling out, coolant level is normal, engine seems to operate normally. I suspect the sending unit has lost its mind. Where is it? How can I test it? Should I test the Gauge also? Maybe I should measure the actual operating temp of the engine. What should it be? Thanks, Paul Link to comment Share on other sites More sharing options...
tunered Posted January 7, 2006 Share Posted January 7, 2006 my guess would be either a sticky thermastat or a air pocket in the cooling system. Link to comment Share on other sites More sharing options...
friendly_jacek Posted January 9, 2006 Share Posted January 9, 2006 OBD2 scanner will show engine coolant temp independently from your tem gauge. It should be 180-212 or so. Check it out before driving more as you might be overheating the engine. Link to comment Share on other sites More sharing options...
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