3rd Generation Specific (1993-2002) 1993-2002 Discussion including performance modifications and Technical Support Sections.
Sponsored by:

Radiator Fans Problem

Thread Tools
 
Search this Thread
 
Old 02-20-02, 12:53 AM
  #1  
Will Work for Ferrari

Thread Starter
 
mightyslash's Avatar
 
Join Date: Oct 2001
Location: West Coast
Posts: 582
Likes: 0
Received 0 Likes on 0 Posts
Radiator Fans Problem

If I turn the ignition switch to "On" when the car's hot (like you turned the car off 10 minutes ago after driving and you turn the ignition to "On"), the radiator fans will come on even though the AC is off. If I turn it to "On" when it's cold, then none of the fans will come on. What kind of problem is that?
Old 02-20-02, 01:06 AM
  #2  
Will Work for Ferrari

Thread Starter
 
mightyslash's Avatar
 
Join Date: Oct 2001
Location: West Coast
Posts: 582
Likes: 0
Received 0 Likes on 0 Posts
Or is it a problem at all
Old 02-20-02, 01:21 AM
  #3  
Will Work for Ferrari

Thread Starter
 
mightyslash's Avatar
 
Join Date: Oct 2001
Location: West Coast
Posts: 582
Likes: 0
Received 0 Likes on 0 Posts
.....
Old 02-20-02, 01:29 AM
  #4  
Full Member

 
Join Date: Dec 2001
Location: San Francisco
Posts: 55
Likes: 0
Received 0 Likes on 0 Posts
Originally posted by mightyslash
Or is it a problem at all
Not a problem. It's called "heat soak".
Old 02-20-02, 01:30 AM
  #5  
Senior Member

iTrader: (2)
 
JspecFD's Avatar
 
Join Date: Sep 2001
Location: Bay Area, CA
Posts: 380
Likes: 0
Received 1 Like on 1 Post
Expected Behavior
Old 02-20-02, 01:41 AM
  #6  
I'm a CF and poop smith

 
skunks's Avatar
 
Join Date: Aug 2001
Location: Hawaii
Posts: 3,958
Likes: 0
Received 1 Like on 1 Post
totally normal!!!
Old 02-20-02, 05:13 AM
  #7  
MIA

 
Crashunit's Avatar
 
Join Date: Aug 2001
Location: Los Angeles
Posts: 342
Likes: 0
Received 0 Likes on 0 Posts
how long have you had your car??
Old 02-20-02, 05:42 AM
  #8  
Full Member

 
evel333's Avatar
 
Join Date: Aug 2001
Location: San Francisco
Posts: 81
Likes: 0
Received 0 Likes on 0 Posts
Re: Radiator Fans Problem

Originally posted by mightyslash
If I turn the ignition switch to "On" when the car's hot (like you turned the car off 10 minutes ago after driving and you turn the ignition to "On"), the radiator fans will come on even though the AC is off. If I turn it to "On" when it's cold, then none of the fans will come on. What kind of problem is that?
No problem at all. It's just heat soak: Your engine continues to heat up your coolant even after you shut down. Once you start up again, your ECU sees "hot" and activates your fans.
Old 02-20-02, 07:42 AM
  #9  
King of the Duct Tape

 
airborne's Avatar
 
Join Date: Feb 2001
Location: PA
Posts: 1,177
Likes: 0
Received 0 Likes on 0 Posts
yeah heat soak is an issue with FDs...thats what the fan mod is for. even better has anyone tried an electrical water pump? something to circulate coolant after the car is off? i remember a discussion a while back about that...
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
sherff
Adaptronic Engine Mgmt - AUS
5
09-12-15 12:22 PM
tiger18
3rd Generation Specific (1993-2002)
9
09-03-15 08:27 PM
rx7shirley
2nd Generation Specific (1986-1992)
6
09-02-15 02:11 PM



Quick Reply: Radiator Fans Problem



All times are GMT -5. The time now is 09:56 PM.