todd332 Posted December 9, 2006 Share Posted December 9, 2006 I have a question on the cooling system on my 92 ES300 .. It has been Real cold here where I am located ..The tempeture gauge Has been staying at 1/4 unless your in stop and go traffic and going up hills , in that case it goes to 1/2 way. I was trying to remeber from my previous lexus that the temp always stayed at 1/2 way. Is it normal for it to run and stay that cold? Quote Link to comment Share on other sites More sharing options...
Toysrme Posted December 9, 2006 Share Posted December 9, 2006 Yeah, but flush the coolant, change the thermotstat & both pressure caps just to feel really good. They normally stay at 1/4 - 2/3. It shouldn't fluxuate when driving. Quote Link to comment Share on other sites More sharing options...
todd332 Posted December 20, 2006 Author Share Posted December 20, 2006 What would cause the Temp to fluxuate During driving? Quote Link to comment Share on other sites More sharing options...
steviej Posted December 20, 2006 Share Posted December 20, 2006 What would cause the Temp to fluxuate During driving? multiple items to include: poor coolant circulation, insufficient air flow across the veins of the radiator, increased load on the engine, slow/poor fan rotation, faulty water pump, faulty coolant temp sensor, thermostat stuck in a open position steviej Quote Link to comment Share on other sites More sharing options...
todd332 Posted December 21, 2006 Author Share Posted December 21, 2006 What can cause slow/poor fan rotation,? When the Car is cold and first started , the fan dosnt move at all till the engine starts to warm up. Quote Link to comment Share on other sites More sharing options...
steviej Posted December 21, 2006 Share Posted December 21, 2006 What can cause slow/poor fan rotation,? When the Car is cold and first started , the fan dosnt move at all till the engine starts to warm up. the 92 ES has a hydrolic fan not electric. It is powered by the powersteering fluid/pump I believe. There are alot of posts describing problems with this particular system. steviej Quote Link to comment Share on other sites More sharing options...
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