Normal operating coolant temperature

[ThushanthaSrimal]

Hi all,

My car is toyota vios 2007 and has 1.5 l 1NZ engine.

Recently I was driving a long trip and suddenly heat bulb started to blink. So I stopped the car and checked. Coolant level is fine and the fan is working. So after a while when I start the car bulb is off.

So I plugged a bluetooth obd reader and observed the coolant temperature while driving. It shows around 94c - 100c and blub never started to blink.

Is this temperature is normal? What is the temp level that blinks the bulb? Can that problem is a senser problem? 

Can anyone help.

[Twin Turbo]

Hi,

toyotas have a 82'c t valve fitted from the factory,..

Taking into account the age of the vehicle,..you might wan check the valve for proper operation and replace with new coolant,..

[ThushanthaSrimal]

  On 6/17/2019 at 12:08 AM, Twin Turbo said:

Hi,

toyotas have a 82'c t valve fitted from the factory,..

Taking into account the age of the vehicle,..you might wan check the valve for proper operation and replace with new coolant,..

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Thankz....

Can the valve can give you faulty temperature? Does the ecu reads the temperature and give the red bulb at a certain threshold ?

 

[Hyaenidae]

  On 6/22/2019 at 1:04 AM, ThushanthaSrimal said:

Thankz....

Can the valve can give you faulty temperature? Does the ecu reads the temperature and give the red bulb at a certain threshold ?

 

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94°C sounds normal, the thermostat of my 1600CC fully opens at 95°C