Car not reaching Operating Temperature during cold weather

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03-14-2020, 04:38 AM

#41

Turbobink

Senior Member

iTrader: (2)

Join Date: Dec 2000

Location: Tampa Bay

Posts: 2,674

Quote:

Originally Posted by JoshG

Actually no, I totally forgot that and never have replaced that. Does the coolant temp sensor have anything to do with this?

The temp. sensor simply sends signal to your dash temp. gauge, telling the gauge what to tell you.

Point being, your coolant may well be at the proper temperature.

However, a faulty temp. sensor may be conveying incorrect signal to the gauge.

As as I recall they’re super cheap ... a little bit a hassle to get to but, that’s a 4th gen., right?

Or maybe try one of these ...

Last edited by Turbobink; 03-14-2020 at 04:43 AM.

03-14-2020, 06:28 AM

#42

saig

Member

Join Date: Mar 2007

Posts: 227

Quote:

Originally Posted by Zerodrag

i would recommend trying to hook up an obd2 scanner device and verify the coolant temp ecu is seeing is reflected by on the temp gauge to verify the accuracy.

This is wise recommendation. Take out the guess work, prevent you from a part cannon.

Radiator cap release pressure (11-14 psi) could make your car running hot. Each additional pound causes coolant temp to rise 3 degrees (F). Note that you are using aftermarket thermostat and rad cap. Coolant temp for normal driving is 210-220 degrees (F). Look like your fan works but it takes sometime to bring temp back to normal range.

Last edited by saig; 03-14-2020 at 09:18 AM.