Honda Prelude Forum
 
Go Back   Honda Prelude Forum > Tech-Talk > General Tech Talk

Thread Title
keep blowing radiator fan fuses.... WTFF

 
Reply
 
LinkBack Thread Tools Display Modes
  #1 (permalink)  
Old 07-20-2010, 02:05 PM
twokexlv6coupe's Avatar
little green ghouls, buddy!!
Photobucket
 
Join Date: Apr 2006
Location: kitten mittens
Posts: 17,844
iTrader: (9)
twokexlv6coupe has a reputation beyond reputetwokexlv6coupe has a reputation beyond reputetwokexlv6coupe has a reputation beyond reputetwokexlv6coupe has a reputation beyond reputetwokexlv6coupe has a reputation beyond reputetwokexlv6coupe has a reputation beyond reputetwokexlv6coupe has a reputation beyond reputetwokexlv6coupe has a reputation beyond reputetwokexlv6coupe has a reputation beyond reputetwokexlv6coupe has a reputation beyond reputetwokexlv6coupe has a reputation beyond repute
Send a message via AIM to twokexlv6coupe
Icon8 keep blowing radiator fan fuses.... WTFF

in the ongoing battle between my overheating car and i......

i was bleeding the coolant today, wondering why my fan wouldn't come on, and found the blown fuse.
replaced it with another 20A, started the car, and this one blew as soon as the fan came on.
replaced it again (20A), the new one blew as soon as I STARTED THE CAR!!!

ok, so i have a short somewhere, correct?
the only electrical work i've done on the entire cooling system is soldering the rad. fan to the harness, that's it.




P.S. the fan obviously works, and i hear the relay clicking when jumping the fan switch connector. clicking means the relay is working?
__________________

1995 Honda Prelude SE Turbo; 250whp, 275wtq @ 10psi Soldddd!!!

2000 Acura TL; DD
2005 Stage2.5+ Subaru WRB STi : RzKar!
Ivey Tuned - Advan - Cobb - Rallispec - CP - Perrin - ACT - KillerB - Carillo - TurboXS - Defi - Innovate - Walbro - DeatschWerks - Feal - H&R - Alpine - Infiniti - Curt

2001 Kawasaki STX1100 D.I. - Sold!
2007 Sea-Doo RXT 215; ET 127 +3 S/C impeller, DIY 3" intake, DIY resonator delete/free flow exhaust, DIY oil catch can, Rule 500gph bilge pump


Quote:
Originally Posted by Brash View Post
But you need that scoop on the hood. Is it true that they're big enough to fit your lunch box and all your camera gear in it?
Reply With Quote
  #2 (permalink)  
Old 07-20-2010, 04:43 PM
LilMsPrelude's Avatar
Platinum Member

 
Join Date: Jun 2008
Location: Boise, Id.
Posts: 2,294
iTrader: (4)
LilMsPrelude has a reputation beyond reputeLilMsPrelude has a reputation beyond reputeLilMsPrelude has a reputation beyond reputeLilMsPrelude has a reputation beyond reputeLilMsPrelude has a reputation beyond reputeLilMsPrelude has a reputation beyond reputeLilMsPrelude has a reputation beyond reputeLilMsPrelude has a reputation beyond reputeLilMsPrelude has a reputation beyond reputeLilMsPrelude has a reputation beyond reputeLilMsPrelude has a reputation beyond repute
Re: keep blowing radiator fan fuses.... WTFF

back to basics..... too much current causes a fuse to blow. Correct?

What would cause too much current to flow?
- a direct short to ground
- a fan motor/bearing seizing and requiring it to pull more current than normal to turn
- an alternate draw leeching off the specified current rating for the fan motor.

when you say the fan "obviously" works..... I become suspect.

anbd yes, a clicking relay is a good thing. You MAY want to test it with an Ohm Meter however just to be sure it is passing power
__________________
Quote:
Originally Posted by shatterbox View Post
People say the biggest difference you can change to your system is to add a subwoofer. Which is true, it is the most noticable difference. But running an amplifier to a good set of speakers makes the BEST difference.

_____________________
Understanding The Basics - Electronics & Car Audio
An In Depth Look At Relays
The "Big Three" DIY Install
Alarm & Remote Start DIY
My Babies Thread

Last edited by LilMsPrelude; 07-20-2010 at 04:49 PM.
Reply With Quote
  #3 (permalink)  
Old 07-20-2010, 05:07 PM
Banned
ROTM!
 
Join Date: Jul 2007
Location: ny
Posts: 1,801
iTrader: (1)
t3am 83rd is infamous around these partst3am 83rd is infamous around these partst3am 83rd is infamous around these partst3am 83rd is infamous around these partst3am 83rd is infamous around these partst3am 83rd is infamous around these partst3am 83rd is infamous around these partst3am 83rd is infamous around these partst3am 83rd is infamous around these partst3am 83rd is infamous around these partst3am 83rd is infamous around these parts
Re: keep blowing radiator fan fuses.... WTFF

I would just double-check the soldering work
Reply With Quote
  #4 (permalink)  
Old 07-20-2010, 05:39 PM
Harmswahy's Avatar
Silver Member
 
Join Date: May 2010
Location: Federal Way, Washington
Posts: 342
iTrader: (0)
Harmswahy has a reputation beyond reputeHarmswahy has a reputation beyond reputeHarmswahy has a reputation beyond reputeHarmswahy has a reputation beyond reputeHarmswahy has a reputation beyond reputeHarmswahy has a reputation beyond reputeHarmswahy has a reputation beyond reputeHarmswahy has a reputation beyond reputeHarmswahy has a reputation beyond reputeHarmswahy has a reputation beyond reputeHarmswahy has a reputation beyond repute
Re: keep blowing radiator fan fuses.... WTFF

I'm having the same problem with my blinker/dash fuse, the second I turn the car on it blows....

I cant figure it out....
__________________
1988 Honda Prelude 2.0 SI
B20A5


I MY
Reply With Quote
  #5 (permalink)  
Old 07-20-2010, 06:26 PM
twokexlv6coupe's Avatar
little green ghouls, buddy!!
Photobucket
 
Join Date: Apr 2006
Location: kitten mittens
Posts: 17,844
iTrader: (9)
twokexlv6coupe has a reputation beyond reputetwokexlv6coupe has a reputation beyond reputetwokexlv6coupe has a reputation beyond reputetwokexlv6coupe has a reputation beyond reputetwokexlv6coupe has a reputation beyond reputetwokexlv6coupe has a reputation beyond reputetwokexlv6coupe has a reputation beyond reputetwokexlv6coupe has a reputation beyond reputetwokexlv6coupe has a reputation beyond reputetwokexlv6coupe has a reputation beyond reputetwokexlv6coupe has a reputation beyond repute
Send a message via AIM to twokexlv6coupe
Re: keep blowing radiator fan fuses.... WTFF

Quote:
Originally Posted by LilMsPrelude View Post
back to basics..... too much current causes a fuse to blow. Correct?

What would cause too much current to flow?
- a direct short to ground
- a fan motor/bearing seizing and requiring it to pull more current than normal to turn
- an alternate draw leeching off the specified current rating for the fan motor.

when you say the fan "obviously" works..... I become suspect.

anbd yes, a clicking relay is a good thing. You MAY want to test it with an Ohm Meter however just to be sure it is passing power

now that you became suspect of the fan, it has me thinking.... it was spinning slightly slower than normal, so it might be dying/pulling too much/little current. i'll be extremely pissed if it is cuz it's a brand new (to me) FAL slim fan
previous owner claims less than 6 months of use.
i'm gonna go throw my other slim fan in and see how fast that one spins.....

i WANTED to check the relay w/ my DMM, but i couldn't find in the manual what to check, and how.


Quote:
Originally Posted by t3am 83rd View Post
I would just double-check the soldering work
soldering is brand new, just did it today, and wrapped everything w/ electrical tape.
__________________

1995 Honda Prelude SE Turbo; 250whp, 275wtq @ 10psi Soldddd!!!

2000 Acura TL; DD
2005 Stage2.5+ Subaru WRB STi : RzKar!
Ivey Tuned - Advan - Cobb - Rallispec - CP - Perrin - ACT - KillerB - Carillo - TurboXS - Defi - Innovate - Walbro - DeatschWerks - Feal - H&R - Alpine - Infiniti - Curt

2001 Kawasaki STX1100 D.I. - Sold!
2007 Sea-Doo RXT 215; ET 127 +3 S/C impeller, DIY 3" intake, DIY resonator delete/free flow exhaust, DIY oil catch can, Rule 500gph bilge pump


Quote:
Originally Posted by Brash View Post
But you need that scoop on the hood. Is it true that they're big enough to fit your lunch box and all your camera gear in it?
Reply With Quote
  #6 (permalink)  
Old 07-20-2010, 07:36 PM
LilMsPrelude's Avatar
Platinum Member

 
Join Date: Jun 2008
Location: Boise, Id.
Posts: 2,294
iTrader: (4)
LilMsPrelude has a reputation beyond reputeLilMsPrelude has a reputation beyond reputeLilMsPrelude has a reputation beyond reputeLilMsPrelude has a reputation beyond reputeLilMsPrelude has a reputation beyond reputeLilMsPrelude has a reputation beyond reputeLilMsPrelude has a reputation beyond reputeLilMsPrelude has a reputation beyond reputeLilMsPrelude has a reputation beyond reputeLilMsPrelude has a reputation beyond reputeLilMsPrelude has a reputation beyond repute
Re: keep blowing radiator fan fuses.... WTFF

According to the manual it is an "A-Type" relay.

then we go to page 23-70 (pdf doc pg# 1149)
1) Remove The Power Relay from its socket
2) Check Continuity between terminals.
.......a) No power/connection, place ohm meter across Terminals C & D
there should be continuity across C&D and NO continuity between A and B
.......b) Now apply 12 volt power to Terminal C & D. Apply ohm meter to terminal A & B - you should have continuity. If not, grab a new one and install.

__________________
Quote:
Originally Posted by shatterbox View Post
People say the biggest difference you can change to your system is to add a subwoofer. Which is true, it is the most noticable difference. But running an amplifier to a good set of speakers makes the BEST difference.

_____________________
Understanding The Basics - Electronics & Car Audio
An In Depth Look At Relays
The "Big Three" DIY Install
Alarm & Remote Start DIY
My Babies Thread
Reply With Quote
  #7 (permalink)  
Old 07-21-2010, 12:41 AM
twokexlv6coupe's Avatar
little green ghouls, buddy!!
Photobucket
 
Join Date: Apr 2006
Location: kitten mittens
Posts: 17,844
iTrader: (9)
twokexlv6coupe has a reputation beyond reputetwokexlv6coupe has a reputation beyond reputetwokexlv6coupe has a reputation beyond reputetwokexlv6coupe has a reputation beyond reputetwokexlv6coupe has a reputation beyond reputetwokexlv6coupe has a reputation beyond reputetwokexlv6coupe has a reputation beyond reputetwokexlv6coupe has a reputation beyond reputetwokexlv6coupe has a reputation beyond reputetwokexlv6coupe has a reputation beyond reputetwokexlv6coupe has a reputation beyond repute
Send a message via AIM to twokexlv6coupe
Re: keep blowing radiator fan fuses.... WTFF

ok, i did ^^ that ^^, and the relay is working perfectly.

maybe i'm blind, but is there a page in the manual that tests the radiator fan control module? next to the ECU.




the more i think about it, the more i'm starting to think this fan is dying on me (fukkkkkkkkkkkkkk!!!!!), drawing too much current
i said i was gonna install my other fan before, but all i ended up doing was blowing 3 more fuses. now that i'm pretty convinced the fan is busted, i'll swap them tomorrow morning and see if its still busting fuses.
__________________

1995 Honda Prelude SE Turbo; 250whp, 275wtq @ 10psi Soldddd!!!

2000 Acura TL; DD
2005 Stage2.5+ Subaru WRB STi : RzKar!
Ivey Tuned - Advan - Cobb - Rallispec - CP - Perrin - ACT - KillerB - Carillo - TurboXS - Defi - Innovate - Walbro - DeatschWerks - Feal - H&R - Alpine - Infiniti - Curt

2001 Kawasaki STX1100 D.I. - Sold!
2007 Sea-Doo RXT 215; ET 127 +3 S/C impeller, DIY 3" intake, DIY resonator delete/free flow exhaust, DIY oil catch can, Rule 500gph bilge pump


Quote:
Originally Posted by Brash View Post
But you need that scoop on the hood. Is it true that they're big enough to fit your lunch box and all your camera gear in it?
Reply With Quote
  #8 (permalink)  
Old 07-21-2010, 02:21 AM
Bronze Member
 
Join Date: Jun 2010
Posts: 160
iTrader: (0)
hondagame is on a distinguished road
Re: keep blowing radiator fan fuses.... WTFF

this was probably already stated, but ur fans fins are probably not spinning > blades are busted>them not spinning caused fuse to blow>happened to me b4>my fan was not spinning becase blades got jammed>got a new fan>changed fuse>got to drive
Reply With Quote
  #9 (permalink)  
Old 07-21-2010, 07:35 AM
Not So New
 
Join Date: Jun 2010
Posts: 28
iTrader: (0)
luder is infamous around these partsluder is infamous around these partsluder is infamous around these partsluder is infamous around these partsluder is infamous around these partsluder is infamous around these partsluder is infamous around these partsluder is infamous around these partsluder is infamous around these parts
Re: keep blowing radiator fan fuses.... WTFF

have you tested the power to ground continuity to see if you have a short?
and if you dont its probly the fan draw.
Reply With Quote
  #10 (permalink)  
Old 07-21-2010, 09:50 AM
twokexlv6coupe's Avatar
little green ghouls, buddy!!
Photobucket
 
Join Date: Apr 2006
Location: kitten mittens
Posts: 17,844
iTrader: (9)
twokexlv6coupe has a reputation beyond reputetwokexlv6coupe has a reputation beyond reputetwokexlv6coupe has a reputation beyond reputetwokexlv6coupe has a reputation beyond reputetwokexlv6coupe has a reputation beyond reputetwokexlv6coupe has a reputation beyond reputetwokexlv6coupe has a reputation beyond reputetwokexlv6coupe has a reputation beyond reputetwokexlv6coupe has a reputation beyond reputetwokexlv6coupe has a reputation beyond reputetwokexlv6coupe has a reputation beyond repute
Send a message via AIM to twokexlv6coupe
Re: keep blowing radiator fan fuses.... WTFF

Quote:
Originally Posted by hondagame View Post
this was probably already stated, but ur fans fins are probably not spinning > blades are busted>them not spinning caused fuse to blow>happened to me b4>my fan was not spinning becase blades got jammed>got a new fan>changed fuse>got to drive
Quote:
Originally Posted by twokexlv6coupe View Post
P.S. the fan obviously works,
Quote:
Originally Posted by twokexlv6coupe View Post
it was spinning slightly slower than normal,




Quote:
Originally Posted by luder View Post
have you tested the power to ground continuity to see if you have a short?
and if you dont its probly the fan draw.
naw i haven't. how do i do that?
one probe on the positive wire going to the fan, and the other probe on the chassis/ground while the key is turned to II?




ughhh this is why i graduated MECHANICAL engineering. i hateeee electrical shizzzz
__________________

1995 Honda Prelude SE Turbo; 250whp, 275wtq @ 10psi Soldddd!!!

2000 Acura TL; DD
2005 Stage2.5+ Subaru WRB STi : RzKar!
Ivey Tuned - Advan - Cobb - Rallispec - CP - Perrin - ACT - KillerB - Carillo - TurboXS - Defi - Innovate - Walbro - DeatschWerks - Feal - H&R - Alpine - Infiniti - Curt

2001 Kawasaki STX1100 D.I. - Sold!
2007 Sea-Doo RXT 215; ET 127 +3 S/C impeller, DIY 3" intake, DIY resonator delete/free flow exhaust, DIY oil catch can, Rule 500gph bilge pump


Quote:
Originally Posted by Brash View Post
But you need that scoop on the hood. Is it true that they're big enough to fit your lunch box and all your camera gear in it?
Reply With Quote
  #11 (permalink)  
Old 07-21-2010, 03:01 PM
twokexlv6coupe's Avatar
little green ghouls, buddy!!
Photobucket
 
Join Date: Apr 2006
Location: kitten mittens
Posts: 17,844
iTrader: (9)
twokexlv6coupe has a reputation beyond reputetwokexlv6coupe has a reputation beyond reputetwokexlv6coupe has a reputation beyond reputetwokexlv6coupe has a reputation beyond reputetwokexlv6coupe has a reputation beyond reputetwokexlv6coupe has a reputation beyond reputetwokexlv6coupe has a reputation beyond reputetwokexlv6coupe has a reputation beyond reputetwokexlv6coupe has a reputation beyond reputetwokexlv6coupe has a reputation beyond reputetwokexlv6coupe has a reputation beyond repute
Send a message via AIM to twokexlv6coupe
Re: keep blowing radiator fan fuses.... WTFF

switched fans to the ebay slim fan, seems to be working fine now. was bleeding the coolant for about an hour in 85-90* heat, the fan kicked on 10-15 times, so i THINKKKK its good now.
__________________

1995 Honda Prelude SE Turbo; 250whp, 275wtq @ 10psi Soldddd!!!

2000 Acura TL; DD
2005 Stage2.5+ Subaru WRB STi : RzKar!
Ivey Tuned - Advan - Cobb - Rallispec - CP - Perrin - ACT - KillerB - Carillo - TurboXS - Defi - Innovate - Walbro - DeatschWerks - Feal - H&R - Alpine - Infiniti - Curt

2001 Kawasaki STX1100 D.I. - Sold!
2007 Sea-Doo RXT 215; ET 127 +3 S/C impeller, DIY 3" intake, DIY resonator delete/free flow exhaust, DIY oil catch can, Rule 500gph bilge pump


Quote:
Originally Posted by Brash View Post
But you need that scoop on the hood. Is it true that they're big enough to fit your lunch box and all your camera gear in it?
Reply With Quote
  #12 (permalink)  
Old 07-21-2010, 05:39 PM
Not So New
 
Join Date: Jun 2010
Posts: 28
iTrader: (0)
luder is infamous around these partsluder is infamous around these partsluder is infamous around these partsluder is infamous around these partsluder is infamous around these partsluder is infamous around these partsluder is infamous around these partsluder is infamous around these partsluder is infamous around these parts
Re: keep blowing radiator fan fuses.... WTFF

thats exactly right probe your positive and touch a good ground. if you have continuity at all! then you have a short. then the fun begins you have to find it. and you do not have to turn the key on! you can also check resistance through you fan connecter im not sure what it is suposed to be but surly someone on here could go check there working one and give you a number to refrence if i get out to my pole barn tonite i will check it.

Last edited by luder; 07-21-2010 at 05:44 PM.
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
Radio does not work!! Fuses are fine! cincymarsvolta 4th Gen Honda Prelude 11 06-30-2010 08:56 AM
fuses keep blowing need advice aemafia15 4th Gen Honda Prelude 7 05-02-2010 10:05 PM
A/C not blowing cold koizuki 4th Gen Honda Prelude 4 08-12-2009 10:37 PM
alternator fuses H22lude317 4th Gen Honda Prelude 11 03-17-2009 08:23 PM
No cold air blowing ? jon12001 4th Gen Honda Prelude 11 08-12-2008 07:06 PM


All times are GMT -4. The time now is 06:16 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.