Hey to All! Just joined the forum here - looking forward to the discussions. Driving an 2004.5 S40 T5.

I searched the forums for coolant/temperature related posts and found lots of info on the coolant temp sensor/thermostat issues, but didn't see anyone mentioning strange gauge/engine fan behavior.

Under acceleration and sustained speeds, my temp gauge rises about 2 notches and stays there until I let off the gas and reduce speed, which brings the temp reading down. Seems strange to me since if there was an overheating potential, then I would think less airflow would make the temp rise not fall. At idle/sitting still, the reading looks normal.

Also, engine fan continues to run for several minutes after shutting down engine. This is a new occurrence for this car. Oh, and CEL has not come on either.

Could this also be a symptom of the coolant temp sensor/thermostat going bad? Have any of you experienced gauge/fan behavior? Could it be something with the turbo?

Thanks in advance for your help!

 

I would check that first.(Thermostat and sensor)

 

Thanks, Tech. I'll definitely do that first.

If it turns out to not be that, any idea what else it could be?

 

Maybe something electrical maybe codes in the computer.