Honda Prelude Forum
 
Go Back   Honda Prelude Forum > Tech-Talk > 5th Gen Honda Prelude

Thread Title
What Temperature Should Cooling Fans Click On

 
Reply
 
LinkBack Thread Tools Display Modes
  #1 (permalink)  
Old 05-15-2014, 08:06 PM
Bronze Member
 
Join Date: Aug 2012
Location: Toronto, Ontario
Posts: 104
iTrader: (0)
blacklud has much to be proud ofblacklud has much to be proud ofblacklud has much to be proud ofblacklud has much to be proud ofblacklud has much to be proud ofblacklud has much to be proud ofblacklud has much to be proud ofblacklud has much to be proud ofblacklud has much to be proud of
What Temperature Should Cooling Fans Click On

I've got a 2000 A/T Lude, just drained and filled the coolant a few days ago.
I was just wondering what temperature the rad fans should be clicking on, I was using my mechanics scanner and it seems the rad fans clicked on at 101C/214F and clicked off at 93C/200F.

Is this normal or should they be clicking on before?
Reply With Quote
  #2 (permalink)  
Old 05-16-2014, 12:15 AM
Hunter's Avatar
Gold Member
 
Join Date: Jan 2012
Location: Pittsburgh
Posts: 985
iTrader: (1)
Hunter has a reputation beyond reputeHunter has a reputation beyond reputeHunter has a reputation beyond reputeHunter has a reputation beyond reputeHunter has a reputation beyond reputeHunter has a reputation beyond reputeHunter has a reputation beyond reputeHunter has a reputation beyond reputeHunter has a reputation beyond reputeHunter has a reputation beyond reputeHunter has a reputation beyond repute
Re: What Temperature Should Cooling Fans Click On

you're good
__________________
Any Pittsburgh Luders?
98 White Pearl 5 speed base-DD
01 White Pearl 5 speed base-Parts

Street Racing: Racing someone on the public streets to see who is faster or a better driver....Is it still street racing if you know you're going to win?
Reply With Quote
  #3 (permalink)  
Old 05-16-2014, 08:39 AM
bykfixer's Avatar
Supreme Member
Photobucket
 
Join Date: Aug 2012
Location: could you repeat the question?
Posts: 11,121
iTrader: (4)
bykfixer has a reputation beyond reputebykfixer has a reputation beyond reputebykfixer has a reputation beyond reputebykfixer has a reputation beyond reputebykfixer has a reputation beyond reputebykfixer has a reputation beyond reputebykfixer has a reputation beyond reputebykfixer has a reputation beyond reputebykfixer has a reputation beyond reputebykfixer has a reputation beyond reputebykfixer has a reputation beyond repute
Re: What Temperature Should Cooling Fans Click On

^^ like he said.

All Gen. Prelude Service Manuals
__________________


Quote:
Originally Posted by ogsmakdade View Post
welcome to site Carl
...is a golden car fax kinda like a golden ticket? Sure hope willy wonka didn't put any snozberries in your motor.
Quote:
Originally Posted by elspectro29 View Post
Only seen the first one, 15 years ago in theaters. Plan on keeping it that way. Get off my lawn.
Quote:
Originally Posted by Lindso View Post
I remember my first thread, asking what a noise was when I got going 110mph.
Pretty much got flamed for driving like a jackass and was told to slow down. And I'll be damned, slowing down fixed it.

God's Not Dead
Reply With Quote
  #4 (permalink)  
Old 05-16-2014, 09:38 AM
Bronze Member
 
Join Date: Aug 2012
Location: Toronto, Ontario
Posts: 104
iTrader: (0)
blacklud has much to be proud ofblacklud has much to be proud ofblacklud has much to be proud ofblacklud has much to be proud ofblacklud has much to be proud ofblacklud has much to be proud ofblacklud has much to be proud ofblacklud has much to be proud ofblacklud has much to be proud of
Re: What Temperature Should Cooling Fans Click On

Quote:
Originally Posted by Hunter View Post
you're good
Quote:
Originally Posted by bykfixer View Post
Some say fans should click on between 198-208F.

I don't see anyway that I can let the fans click on earlier, that is controlled by the car's computer.
Reply With Quote
  #5 (permalink)  
Old 05-16-2014, 06:46 PM
tassievteclude's Avatar
Gold Member
 
Join Date: Jul 2007
Location: Tasmania, Australia
Posts: 556
iTrader: (0)
tassievteclude has a reputation beyond reputetassievteclude has a reputation beyond reputetassievteclude has a reputation beyond reputetassievteclude has a reputation beyond reputetassievteclude has a reputation beyond reputetassievteclude has a reputation beyond reputetassievteclude has a reputation beyond reputetassievteclude has a reputation beyond reputetassievteclude has a reputation beyond reputetassievteclude has a reputation beyond reputetassievteclude has a reputation beyond repute
Re: What Temperature Should Cooling Fans Click On

The fans are controlled by the fan control module, not the ECU. The fan control module relies on the input from one (on JDM models) or two (USDM) fan temp switches. IIRC fan switch A is on the thermostat housing and will simply complete the electrical circuit by grounding out against the block. You can purchase different switches that will open and close at slightly different temperatures, there is a Mugen one that will switch the fans on at 155F but only for JDM motors. Fan switch B keeps the fans running if the car is still hot when the ignition is turned off. I believe the stock fan switch comes on at 208F as you said.

In short, you CAN get the fans to come on earlier if you really want, but why? They are running properly and only a few degrees high. The fans are only there as a back-up if you are stuck in traffic on a hot day anyway, they generally should not come on at all when moving... especially in Toronto. If you find the engine is running hot and the fans are running frequently then you may have an air pocket trapped in the cooling system.
Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
HOW TO: Fix A/C, Cooling/Radiator Fans Prelude209 DIY Do-It-Yourself 4 09-21-2015 05:29 AM
Advice on cooling fans. NjNoel 5th Gen Honda Prelude 9 09-19-2011 12:59 PM
Cooling fans Unreachable 4th Gen Honda Prelude 17 05-12-2010 11:48 PM
BIG PROBLEM COOLING FANS NOT WORKING OnPointH22 5th Gen Honda Prelude 6 09-30-2008 06:32 PM


All times are GMT -4. The time now is 05:55 PM.



Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
LinkBacks Enabled by vBSEO 3.6.0 PL2 © 2011, Crawlability, Inc.
vB.Sponsors


Copyright © 2006-2009 PreludeZone.com All Rights Reserved.