Coolant temperature sensor not functioning?

BLESSING EWOBOR

MEMBER
2013 TOYOTA CAMRY
V6
2WD
AUTOMATIC
244,562 MILES

Good morning, vehicle experience overheating, the temperature gauge was on normal at the combination meter, when observing it on the scan tool, the temperature was increasing when the engine was started but it stops increase at some point and the vehicle engine was overheating.
Please is there any reading or chart that compare temperature of the sensor to resistance or voltage?

4 Replies

JACOBANDNICKOLAS

MECHANIC
108,269 POSTS

Hi,

To test the sensor, you need to remove it and place it in heated water while testing resistance. I attached the directions for testing below.

I have a question. How long does it take to overheat? When it overheats, is there coolant blowing out of the coolant reservoir?

Let me know.

Take care,

Joe

See pics below.

Images (Click to make bigger)

SPONSORED LINKS

Was this

answer

helpful?

Yes

No

Saturday, March 25th, 2023 AT 12:02 AM

BLESSING EWOBOR

MEMBER
663 POSTS

Hello,

Good evening, sir, coolant is not blowing out from the coolant reservoir, but all the hoses are fully pressurized.

Was this

answer

helpful?

Yes

No

Saturday, March 25th, 2023 AT 12:49 PM

JACOBANDNICKOLAS

MECHANIC
108,269 POSTS

You lost me. The hoses should be pressurized. If the gauge in the vehicle wasn't indicating an overheating issue and nothing was boiling over, what did you do to determine it was in fact overheating? If you use an infrared thermometer, what temperature do you see at the radiator?

Joe

Was this

answer

helpful?

Yes

No

Saturday, March 25th, 2023 AT 9:01 PM

BLESSING EWOBOR

MEMBER
663 POSTS

I didn't take notes of the coolant reservoir at the first time but the hose that move water from the radiator to the engine pulls of as a result of high pressure in the system.

Was this

answer

helpful?

Yes

No

Sunday, March 26th, 2023 AT 6:29 AM