Notices
997 Forum
Sponsored by:
Sponsored by:

Cooling Fans Working?

 
Old 05-15-2019, 02:50 PM
  #1  
campbesl
Addict
Rennlist Member
Thread Starter
 
campbesl's Avatar
 
Join Date: Mar 2004
Location: Charlotte, NC
Posts: 179
Default Cooling Fans Working?

Since I've had my 997.1 I've really never heard the cooling fans operate. I've read many posts where people discuss the engine compartment cooling fan running after they've shut the car off. I've never experience mine running even after 'spirited' drives in high 90's weather.

I researched several posts on checking, replacing or trouble shooting the fans (front radiators and engine compartment) looking for clues on how to test mine. Last night I got out my Durametric Enthusiast, hooked it up, and started searching. I was able to find the radiator fans under Front and then, under Activations I was able to individually and collectively operate them. Then I did the same with the engine compartment fan. WOW they all work! Loving the Durametric and Loving the Rennlist community!

Now, should one use an external fan or let the car's sensors and engine compartment fan do the cooling? Should one leave the engine compartment open or shut to cool off? Such is the debate.

Best regards to all,

Scott
campbesl is offline  
Old 05-16-2019, 11:12 AM
  #2  
Petza914
Addict
Rennlist Member
 
Petza914's Avatar
 
Join Date: Oct 2007
Location: Clemson, SC
Posts: 10,589
Default

Let the OEM fans do as they were designed and leave the engine lid closed. The engine fan won't run with the lid open and the fan pulls air from above and pushes it down through. Leaving the lid open prevents the fan from running and has the heat radiate up through which is not how it was designed to cool.
Petza914 is online now  
Old 05-16-2019, 02:01 PM
  #3  
campbesl
Addict
Rennlist Member
Thread Starter
 
campbesl's Avatar
 
Join Date: Mar 2004
Location: Charlotte, NC
Posts: 179
Default

Thank you Petza, I'll follow your advice.

BTW, I was in Highlands NC over the weekend touring mountain roads and just plain enjoying my 997. Just realized that I was close to your neck of the woods.
campbesl is offline  
Old 05-16-2019, 03:24 PM
  #4  
Petza914
Addict
Rennlist Member
 
Petza914's Avatar
 
Join Date: Oct 2007
Location: Clemson, SC
Posts: 10,589
Default

Originally Posted by campbesl View Post
Thank you Petza, I'll follow your advice.

BTW, I was in Highlands NC over the weekend touring mountain roads and just plain enjoying my 997. Just realized that I was close to your neck of the woods.
Sure were. Highlands is an hour up the mountain from me. Let me know next time and maybe we can catch up.
Petza914 is online now  
Old 05-16-2019, 03:35 PM
  #5  
yvesvidal
User
 
yvesvidal's Avatar
 
Join Date: Jan 2011
Location: RALEIGH, NC
Posts: 442
Default

There are different schools and different ways to look at it.

Personally, I open the lid (in my garage) and let the heat follow its natural path, which is upward. This will not damage the plastic parts and actually keep them in better condition than if you let the lid fan fight against natural physics.

I believe that the Porsche engineers designed the lid fan to push the heat back to the ground (going against physical and natural laws) simply to prevent people from being burnt or disturbed by hot air escaping the rear lid, when a car is parked in European cities.

I have had my car for 9 years and all the plastic parts are still impeccable.

Yves
yvesvidal is offline  
 


Thread Tools
Search this Thread

Contact Us - About Us - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
 
  • Ask a Question
    Get answers from community experts
Question Title:
Description:
Your question will be posted in: