Hello! Log in or Register   |  Help  |  Donate  |  Buy Shirts See all banner ads | Advertise on TheSamba.com  
TheSamba.com
 
Radiator Fan Won't Shut Off
Page: 1, 2  Next
Forum Index -> Vanagon Share: Facebook Twitter
Reply to topic
Print View
Quick sort: Show newest posts on top | Show oldest posts on top View previous topic :: View next topic  
Author Message
ddye
Samba Member


Joined: July 14, 2010
Posts: 357
Location: Dallas, TX
ddye is offline 

PostPosted: Wed Jun 15, 2011 5:53 pm    Post subject: Radiator Fan Won't Shut Off Reply with quote

Oddness has occurred. Any ideas why the radiator fan won't turn off? I replaced the switch behind the headlight about 2 months ago and the temperature sensor that plugs into the radiator at the same time. It was working fine and then today when i started the van the fan came on....it was cold. Now every time I turn the key the fan comes on.

Curious
_________________
1988 Westy
2.1 Boston Bob Rebuild
"Nelly"
Back to top
View user's profile Send private message Gallery Classifieds Feedback
danfromsyr
Samba Member


Joined: March 01, 2004
Posts: 15119
Location: Syracuse, NY
danfromsyr is offline 

PostPosted: Wed Jun 15, 2011 6:06 pm    Post subject: Reply with quote

is your AC left on?
this will happen if the switch is left bumped on on some years,.
_________________
Abscate wrote:
These are the reasons we have words like “wanker”
Back to top
View user's profile Send private message Visit poster's website Gallery Classifieds Feedback
ddye
Samba Member


Joined: July 14, 2010
Posts: 357
Location: Dallas, TX
ddye is offline 

PostPosted: Wed Jun 15, 2011 6:09 pm    Post subject: Reply with quote

danfromsyr wrote:
is your AC left on?
this will happen if the switch is left bumped on on some years,.


That was it. The wife drove yesterday and didn't get it all the way off.

Thanks!
Very Happy
_________________
1988 Westy
2.1 Boston Bob Rebuild
"Nelly"
Back to top
View user's profile Send private message Gallery Classifieds Feedback
debbiej
Samba Member


Joined: December 14, 2008
Posts: 1541
Location: las cruces, nm
debbiej is offline 

PostPosted: Wed Jun 15, 2011 10:12 pm    Post subject: Reply with quote

better than won't turn on
Back to top
View user's profile Send private message Gallery Classifieds Feedback
peasant
Samba Member


Joined: April 25, 2009
Posts: 321

peasant is offline 

PostPosted: Thu Jun 16, 2011 7:41 am    Post subject: Reply with quote

debbiej wrote:
better than won't turn on


True, I felt so much better and so did my van when I replaced parts to get it working properly.
_________________
89 wolfsberg weekender carat
89 Westfalia
Back to top
View user's profile Send private message Gallery Classifieds Feedback
Memphalia
Samba Member


Joined: June 03, 2010
Posts: 87
Location: Memphis, TN
Memphalia is offline 

PostPosted: Fri Dec 30, 2011 12:59 pm    Post subject: Reply with quote

Ok so I was driving home today and the radiator fan kicked on high and ran on high the rest of the way home and when I turned off the ignition, the fan remained on. I checked the AC to make sure that it is off an it is. Any ideas?
_________________
1989 Westfalia (Wolfram Gray)(Mona)
2004 Toyota 4Runner SR5 4x4
2005 Volvo V70
Back to top
View user's profile Send private message Gallery Classifieds Feedback
SCM
Samba Member


Joined: January 26, 2011
Posts: 3096
Location: Bozeman MT
SCM is offline 

PostPosted: Fri Dec 30, 2011 1:41 pm    Post subject: Reply with quote

Memphalia wrote:
Ok so I was driving home today and the radiator fan kicked on high and ran on high the rest of the way home and when I turned off the ignition, the fan remained on. I checked the AC to make sure that it is off an it is. Any ideas?


It's normal for them to stay on for a few minutes after turning off the vehicle when it's hot.
_________________
'91 Westfalia GL Automatic (GTA "Turbo" Rebuild w/Peloquin) and 2.3L GoWesty Engine
Back to top
View user's profile Send private message Gallery Classifieds Feedback
Memphalia
Samba Member


Joined: June 03, 2010
Posts: 87
Location: Memphis, TN
Memphalia is offline 

PostPosted: Fri Dec 30, 2011 2:42 pm    Post subject: Reply with quote

Yes, I am aware of this, but it will not shut off. I had to disconnect the battery to turn it off and 2 hours later when I reconnected the fan came back on. Possibly relay or fan switch? HELP
_________________
1989 Westfalia (Wolfram Gray)(Mona)
2004 Toyota 4Runner SR5 4x4
2005 Volvo V70
Back to top
View user's profile Send private message Gallery Classifieds Feedback
crazyvwvanman
Samba Member


Joined: January 28, 2008
Posts: 9889
Location: Orbiting San Diego
crazyvwvanman is offline 

PostPosted: Fri Dec 30, 2011 2:59 pm    Post subject: Reply with quote

Pull fuse #1, on left end of fuses. Does this stop the fan running?

What year?

Mark

Memphalia wrote:
Yes, I am aware of this, but it will not shut off. I had to disconnect the battery to turn it off and 2 hours later when I reconnected the fan came back on. Possibly relay or fan switch? HELP
Back to top
View user's profile Send private message Gallery Classifieds Feedback
Memphalia
Samba Member


Joined: June 03, 2010
Posts: 87
Location: Memphis, TN
Memphalia is offline 

PostPosted: Fri Dec 30, 2011 4:10 pm    Post subject: Reply with quote

Yep, pulled the fuse and still running. I also unplugged the radiator fan switch and still running.
_________________
1989 Westfalia (Wolfram Gray)(Mona)
2004 Toyota 4Runner SR5 4x4
2005 Volvo V70
Back to top
View user's profile Send private message Gallery Classifieds Feedback
crazyvwvanman
Samba Member


Joined: January 28, 2008
Posts: 9889
Location: Orbiting San Diego
crazyvwvanman is offline 

PostPosted: Fri Dec 30, 2011 4:51 pm    Post subject: Reply with quote

Ok, pull the relay from relay socket #5. Count from top left of main relay panel. That is the medium speed fan relay for the A/C. If that stops it, there is a problem in the back, in the A/C wiring or A/C relays back there.

If it doesn't stop it, could be the highest speed relay hidden up above the main relay panel, or it could be a weird wiring problem from the back A/C as a wire from the A/C connects to the control line for the high speed relay.

Mark


Memphalia wrote:
Yep, pulled the fuse and still running. I also unplugged the radiator fan switch and still running.
Back to top
View user's profile Send private message Gallery Classifieds Feedback
Memphalia
Samba Member


Joined: June 03, 2010
Posts: 87
Location: Memphis, TN
Memphalia is offline 

PostPosted: Fri Dec 30, 2011 8:26 pm    Post subject: Reply with quote

THere is no relay in the 5 spot, and i have been driving daily for 2 years like this (with everything working properly). The fan is stuck on high mode. How can I identify the highest speed relay hidden up above the main relay panel and test it? Where is it available for replacement? I ordered this

http://www.van-cafe.com/home/van/smartlist_1436/relay.html

Is this what should be in the 5 spot?

Oh, by the way it is an 89 Westy Full camper
_________________
1989 Westfalia (Wolfram Gray)(Mona)
2004 Toyota 4Runner SR5 4x4
2005 Volvo V70
Back to top
View user's profile Send private message Gallery Classifieds Feedback
crazyvwvanman
Samba Member


Joined: January 28, 2008
Posts: 9889
Location: Orbiting San Diego
crazyvwvanman is offline 

PostPosted: Fri Dec 30, 2011 9:34 pm    Post subject: Reply with quote

All 89 vans should have the relay in position 5 unless they are Syncros without A/C. That relay you linked to is not the right one for position 5, as far as I know.

In any case the missing position 5 relay isn't causing this problem. The high speed relay is up inside the dash area at the left end. It is hard to see without removing something. Look at Bentley page 87.5 and the drawing on the upper right shows the relay behind the left dash vent. That is the highest speed rad fan relay, 3rd stage.

(on left of same page shows relay panel with arrow to position 5 for 2nd speed fan relay)


I can't find the right relays on VanCafe site so here is another source.

This is the highest speed 3rd stage fan relay-
http://www.autohausaz.com/search/product.aspx?sid=...an%20Relay


This one will work in a pinch for 3rd stage-
http://www.autohausaz.com/search/product.aspx?sid=...3604@Relay


This (upper) one is what I would expect in position 5-
http://www.autohausaz.com/search/product.aspx?sid=t0h4evvhuh0ojx45zqn0e345&partnumber=141951253B


It sounds like your 3rd stage fan relay stuck in the on position. If so, I wonder why it was coming on at all this time of year, unless the low speed isn't working and that is a common failure that should be checked after you get past this constant fan problem.

Mark


Memphalia wrote:
THere is no relay in the 5 spot, and i have been driving daily for 2 years like this (with everything working properly). The fan is stuck on high mode. How can I identify the highest speed relay hidden up above the main relay panel and test it? Where is it available for replacement? I ordered this

http://www.van-cafe.com/home/van/smartlist_1436/relay.html

Is this what should be in the 5 spot?

Oh, by the way it is an 89 Westy Full camper
Back to top
View user's profile Send private message Gallery Classifieds Feedback
Memphalia
Samba Member


Joined: June 03, 2010
Posts: 87
Location: Memphis, TN
Memphalia is offline 

PostPosted: Fri Dec 30, 2011 10:35 pm    Post subject: Reply with quote

Thank you sir, I have ordered and will try!
_________________
1989 Westfalia (Wolfram Gray)(Mona)
2004 Toyota 4Runner SR5 4x4
2005 Volvo V70
Back to top
View user's profile Send private message Gallery Classifieds Feedback
koolmoe
Samba Member


Joined: November 15, 2008
Posts: 382
Location: Annapolis, MD
koolmoe is offline 

PostPosted: Mon May 05, 2014 12:35 pm    Post subject: Reply with quote

Just FYI and a bump. My fan had been running as soon as I started the Bus for about a week and kept meaning to search here to figure out why...and did today, and first result was this thread...and went out and checked and indeed the AC knob was half-way 'on'...
(which is odd cause my AC hasn't been charged in years and I never use it - probably one of the kids messing around)...

So thanks for the thread and replies. Turning off knob stopped the fan startup. Phew! Love the easy fixes, so rarely the result on this old gal...
KM
_________________
--
Current: 1990 Westy GL (Savannah. Good to be back!)
from '95 til 2008: 1995 Pathfinder (frame rusted out, charitable parts donation)
from '91-'95: 1982 Westy Diesel (Smokey. Traded in for far too little!)
from '87-'91: 1980 VW Rabbit (my econoPorsche - passed on)
Back to top
View user's profile Send private message Gallery Classifieds Feedback
danfromsyr
Samba Member


Joined: March 01, 2004
Posts: 15119
Location: Syracuse, NY
danfromsyr is offline 

PostPosted: Mon May 05, 2014 12:45 pm    Post subject: Reply with quote

WOW, blast from the past.

and to note that this can be a benefit as well.
those whose AC works this way can turn the Rad fan ON to help after a long hard or hot hill/mtn/traffic
just make sure you turn it back OFF once things are evened out.
*note I've heard at least 1 story of a burned out rad fan or AC clutch from prolonged power demand. food for thought.
_________________
Abscate wrote:
These are the reasons we have words like “wanker”
Back to top
View user's profile Send private message Visit poster's website Gallery Classifieds Feedback
Pastelweis
Samba Member


Joined: June 02, 2010
Posts: 92
Location: Stockholm / Los Angeles
Pastelweis is offline 

PostPosted: Sun Sep 25, 2016 5:47 am    Post subject: Re: Radiator Fan Won't Shut Off Reply with quote

@memphalia I have the exact same problem, did you find a solve in the end?
Back to top
View user's profile Send private message Send e-mail Gallery Classifieds Feedback
rustbuckets
Samba Member


Joined: July 02, 2016
Posts: 5
Location: Georgia
rustbuckets is offline 

PostPosted: Thu Nov 21, 2019 8:21 am    Post subject: Re: Radiator Fan Won't Shut Off Reply with quote

Just came across this post and hoping someone will see this. I am having the same problem that a previous poster described with their radiator fan staying on even after the van is turned off. However, when I pull the fuse for the fan it turns off. Would anyone happen to know what that would mean the problem is?
Back to top
View user's profile Send private message Gallery Classifieds Feedback
MarkWard
Samba Member


Joined: February 09, 2005
Posts: 16972
Location: Retired South Florida
MarkWard is offline 

PostPosted: Thu Nov 21, 2019 9:16 am    Post subject: Re: Radiator Fan Won't Shut Off Reply with quote

First step would be to unplug the radiator fan temp switch and see if the fan shuts off. You need to remove the upper grill. If you haven’t done this, you need to learn. Report back.
_________________
☮️
Back to top
View user's profile Send private message Gallery Classifieds Feedback
damagd
Samba Member


Joined: March 11, 2015
Posts: 244
Location: Lancaster, PA
damagd is offline 

PostPosted: Sun Jun 21, 2020 7:56 am    Post subject: Re: Radiator Fan Won't Shut Off Reply with quote

I am having the same problem. 1990 automatic. I was climbing a steep grade outside Buffalo, Wyoming and the fan came on at high speed as usual when the temp went up, however it stayed on even after I turned the van off. Had to disconnect the battery. I tried pulling fuse #1, relay #5 (the grey one labeled 53), and the plug on the radiator behind the lower grill. Nothing made it stop. I drove about 20 miles like this and now I fear it may have burned up my alternator as voltage kept dropping. What should I try next?
Back to top
View user's profile Send private message Gallery Classifieds Feedback
Display posts from previous:   
Reply to topic    Forum Index -> Vanagon All times are Mountain Standard Time/Pacific Daylight Savings Time
Page: 1, 2  Next
Page 1 of 2

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum

About | Help! | Advertise | Donate | Premium Membership | Privacy/Terms of Use | Contact Us | Site Map
Copyright © 1996-2023, Everett Barnes. All Rights Reserved.
Not affiliated with or sponsored by Volkswagen of America | Forum powered by phpBB
Links to eBay or other vendor sites may be affiliate links where the site receives compensation.