Question about 2007 Toyota Corolla

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When I turn my heater on high my thermostat goes straight to the warning

118,000 miles

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Check coolant level in the radiator when the engine is cold, usually in the morning. If it does't solve the problem check the engine coolant temperature sensor and the harness wiring.

Posted on Nov 24, 2013


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I drove about 5 miles with heat and when i pulled back into my drive way it was like someone turned the ac on. why?

The RPM while driving were higher than when you pulled into the Driveway.
Check and top off the Radiator Fluid. Low levels cause this fluctuation. Make sure the engine is cool. Remove the radiator cap. Turn the engine on and turn both the front and rear heater on high when filling. Make sure you use only straight Radiator Fluid (not mixed) in the Reservoir. Replace the cap before it reaches normal operation temperature.
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follow the large hose from the top of the radiator to where it claps to the engine. unclamp it, remove the nipple it was clamped to and there will be the thermostat

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its time for a new clutch,...good luck

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remove coolant.remove thermostat remove bottom radiator hose to water pump.put a empty container under the radiator.take a water hose put it where thermostat goes flush out the rust in the water as it come out the water pump .if stream water is small keep flushing until you get a study sream of clear water. also flush out radiator. lower water pressure dont flush radiator it with high water pressure you could burst it. make clean the over flow jug .make sure it not stopped up.put in a new thermostat and radiator pressure cap. fill radiator with half antifreeze and half water.bleed the coolant system.

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