Flushing sometimes frees up mineral deposits that then clog up your heater core. My mechanic told me to never flush a Toyota as the heater core was low in the engine. That is, only drain and fill when doing a coolant change to prevent dislodging the deposits.
Drain the coolant, remove the two bolts holding the thermostate on, pull it out, replace thermostat along with o-ring, refill coolant, bleed air from coolant.
The 2006 Toyota coolant temperature sensor is located on the front of the engine. The coolant temperature sensor will be a few inches above the thermostat housing.
Low coolant level, internal or external coolant leak or faulty thermostat.
The thermostat is located by the side of the cylinder block near the coolant inlet. Remove the coolant inlet housing after disconnecting cables and loosening the holding bolts. You will be able to remove the thermostat to replace it.,
On a 1993 Toyota Camry Vienta, the thermostat can be easily located by following the lower radiator hose to the point where it attaches to the engine. When replacing the thermostat, always replace gaskets as well.
The housing retainer bolts are loose or the gasket has deteriorated. If replacing the gasket, use pliable gasket sealant to improve the seal. it could also be the water pump went bad and leaking water down beside the thermostat. the thermostat is part of the water
On my '91 it's below the thermostat.
how do you check to know whether your coolant fan motor needs replacing in my 1993 toyota camry v6?
There is no special procedure for replacing the water pump. You will have to remove the belts, fan at a minimum. To make the job easier it is recommended that you remove the radiator. It is also wise to service all consumable parts at that time with genuine Toyota parts: Hoses, coolant, thermostat & belts.
The coolant temperature sensor can be found on the front of the engine, near the thermostat. Remove the coolant temperature sensor retaining nut, to replace it.
Try replacing the thermostat.
First the thermostat must be located on the 1998 Toyota Rav 4. The thermostat housing is on the left side of the engine under the exhaust manifold. The lower radiator hose flows directly to it. Drain the coolant, remove the hose and mounting bolts. Replace the thermostat from the inside of the housing and reinstall.