Jump to content
Sign in to follow this  
macbwt

3.5 Duratec Thermostat replacement

Recommended Posts

Replaced the thermostat since my OBDII and Forscan Lite App were showing operating temps of 207 Degrees F. I installed a Carquest 180 Degree thermostat and then tested it out and the engine was back in the range of 195-198 Degrees in operating temperature. Normal for the Edge 3.5

 

I then had the coolant vacuumed out and refilled with new global coolant. Everything is now running well and no abnormal temperatures are noted.

 

  • Like 2

Share this post


Link to post
Share on other sites

You instalked a 180° thermostat and the car is maintaining 192°? Shouldn't it be maintaining 180°?

Share this post


Link to post
Share on other sites

The TStat rating is for when the TStat starts opening. The rest is up to the PCM programming to determine. Typically fans will come on at 210F or so in stock programming. A 15-20F rise from the opening temp is normal. That means the passive cooling is working well.

  • Like 1

Share this post


Link to post
Share on other sites

The TStat rating is for when the TStat starts opening. The rest is up to the PCM programming to determine. Typically fans will come on at 210F or so in stock programming. A 15-20F rise from the opening temp is normal. That means the passive cooling is working well.

What he said. The temp is when the thermostat open. Not the actual temp the engine will run at. I drive interstate a lot so my fans rarely run due to the flow of air.

  • Like 1

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
Sign in to follow this  

×