Advertise on DISCO3.CO.UK
Forum · Gallery · Wiki · Shop · Sponsors
DISCO3.CO.UK > General

Viscous fan - Can anyone help
Post Reply  Down to end
Page 1 of 1
Ivan
 


Member Since: 01 Mar 2011
Location: Caverswall Staffordshire
Posts: 92

United Kingdom 2005 Discovery 3 4.4 V8 SE Auto Zambezi SilverDiscovery 3
Viscous fan - Can anyone help

Hi

Disco 3 V8. The viscous fan is running like a good un, but, using IID tool the fan speed reads 0. The coolant temp is between 92 and 95C. Temperature gauge is reading normal (i.e. in middle or slightly below centre of gauge).
Air con all works normal.
Any clues as to what may be the issue?

Thanks

Ivan
 D3 V8 SE
2007 Freelander 2 HSE TD4
2004 Freelander 1 HSE 
 
Post #206441827th Jun 2019 5:43 pm
View user's profile Send private message View poster's gallery Reply with quote
Dillon
 


Member Since: 05 Jan 2018
Location: Brighton
Posts: 55

United Kingdom 2005 Discovery 3 TDV6 SE Auto Cairns BlueDiscovery 3

Hi Ivan
I can only speak of my D2 days regarding the viscous fan. Can you stop the fan by hand? and I don't mean shove your hand in there! I mean use a rolled up newspaper and see if you can stop the fan, If you can it sounds like the viscous bit has given up the ghost and that's a new fan job. I must admit that I found no difference to the engine temp. or running of the engine with the fan removed, not that I am suggesting you should do this.

Not really been much help have I?

Hope you get it sorted


Dillon
  
Post #206463928th Jun 2019 1:58 pm
View user's profile Send private message View poster's gallery Reply with quote
Ivan
 


Member Since: 01 Mar 2011
Location: Caverswall Staffordshire
Posts: 92

United Kingdom 2005 Discovery 3 4.4 V8 SE Auto Zambezi SilverDiscovery 3

Thanks.
I have decided to replace the radiator, thermostat and it's housing and temp sender and for good measure a new fan. I am going on holiday next week to France so want to be 100% sure it's not going to cause problems.

Regards

Ivan
 D3 V8 SE
2007 Freelander 2 HSE TD4
2004 Freelander 1 HSE 
 
Post #206466728th Jun 2019 3:36 pm
View user's profile Send private message View poster's gallery Reply with quote
Biffysun
 


Member Since: 09 Jul 2011
Location: Central
Posts: 1691

Scotland 2016 Discovery 4 3.0 SDV6 SE Tech Auto Corris GreyDiscovery 4
Re: Viscous fan - Can anyone help

Ivan wrote:
Hi

Disco 3 V8. The viscous fan is running like a good un, but, using IID tool the fan speed reads 0. The coolant temp is between 92 and 95C. Temperature gauge is reading normal (i.e. in middle or slightly below centre of gauge).
Air con all works normal.
Any clues as to what may be the issue?

Thanks

Ivan


Is there an issue? the viscous fan will rotate all the time but with no force until the temperature rises - the gauge seems normal? What seems to make you think there is a fault? I don't know about the iiD readings Confused
  
Post #206468728th Jun 2019 4:43 pm
View user's profile Send private message View poster's gallery Reply with quote
Pete K
 


Member Since: 15 Jan 2016
Location: GL
Posts: 4748

England 2005 Discovery 3 TDV6 HSE Auto Rimini RedDiscovery 3

A new fan seams excessive.

Press the air con eco button on and off.
If the engine fan changes note the it’s working
  
Post #206471728th Jun 2019 7:13 pm
View user's profile Send private message View poster's gallery Reply with quote
Pete K
 


Member Since: 15 Jan 2016
Location: GL
Posts: 4748

England 2005 Discovery 3 TDV6 HSE Auto Rimini RedDiscovery 3

The important thing to change is the black plastic coolant bridge between the heads and connects to hose.

These do crack
  
Post #206471928th Jun 2019 7:15 pm
View user's profile Send private message View poster's gallery Reply with quote
Ivan
 


Member Since: 01 Mar 2011
Location: Caverswall Staffordshire
Posts: 92

United Kingdom 2005 Discovery 3 4.4 V8 SE Auto Zambezi SilverDiscovery 3

The issue is that the viscous fan is running full belt but, the reading is 0. The fan should not be running as it is. I brought this car in Queensland Australia and never encountered this (it's run under much hotter temps that we get here). Something is not quite right and I want to get to the bottom of it.
Coming home tonight all was well and the fan speed read normal (between 800 and 1500 rpm). After a while (about 20 mins of traffic with speeds between 5 and 50 mph) the fan speed read 0 and the viscous fan kicked in, this is not normal behaviour.
Re the pipe to be changed can you give me any idea of where it is?

Regards

Ivan
 D3 V8 SE
2007 Freelander 2 HSE TD4
2004 Freelander 1 HSE 
 
Post #206473228th Jun 2019 8:25 pm
View user's profile Send private message View poster's gallery Reply with quote
hugeviking
 


Member Since: 08 Jun 2010
Location: cotswolds
Posts: 1376

United Kingdom 2006 Discovery 3 TDV6 S Manual Cairns BlueDiscovery 3

Have you had any work done recently that would involve disconecting the fan electrical harness. When the dealer changed the timing belt on mine first time around when they reconnected the connector one of the pins was pushed out and the fan ran constantly, presumably in safe mode. I pulled the connector apart straightened the pin and relocated it properly. Problem solved.

Andi.
  
Post #206474328th Jun 2019 8:53 pm
View user's profile Send private message View poster's gallery Reply with quote
Pete K
 


Member Since: 15 Jan 2016
Location: GL
Posts: 4748

England 2005 Discovery 3 TDV6 HSE Auto Rimini RedDiscovery 3

This thing

https://rover.ebay.com/rover/0/0/0?mpre=ht...3103043058



Pete K wrote:
The important thing to change is the black plastic coolant bridge between the heads and connects to hose.

These do crack
  
Post #206476328th Jun 2019 10:20 pm
View user's profile Send private message View poster's gallery Reply with quote
cobby
 


Member Since: 05 Aug 2018
Location: Oxon
Posts: 82

United Kingdom 2007 Discovery 3 TDV6 GS Auto Java BlackDiscovery 3

For a V8 D3???? I don't think so but maybe I'm wrong???
  
Post #206477628th Jun 2019 10:51 pm
View user's profile Send private message View poster's gallery Reply with quote
Pete K
 


Member Since: 15 Jan 2016
Location: GL
Posts: 4748

England 2005 Discovery 3 TDV6 HSE Auto Rimini RedDiscovery 3

Arh whoops.
So rare them v8 d3!
Sorry.

The v8 has the thermostat there instead with similar issue
  
Post #206478328th Jun 2019 11:24 pm
View user's profile Send private message View poster's gallery Reply with quote
M3DPO
 


Member Since: 22 Sep 2010
Location: Notts.
Posts: 5828

England 2014 Discovery 4 3.0 SDV6 HSE Lux Auto Corris GreyDiscovery 4

On first engine start up the fan should run at full speed for about 20 seconds with a distinct roar and then drop back to very low speed, set your Iid tool to live values and check the readings. It is possible that due to its previous hot climate it has been modified to run continuously, could a fuse have been removed?
 It can when others can't,
It will when others won't,
It goes where others don't. 
 
Post #206481429th Jun 2019 8:22 am
View user's profile Send private message View poster's gallery Reply with quote
Ivan
 


Member Since: 01 Mar 2011
Location: Caverswall Staffordshire
Posts: 92

United Kingdom 2005 Discovery 3 4.4 V8 SE Auto Zambezi SilverDiscovery 3

It is normally OK and has not been modified for hot climates. It does roar at stat up as expected. When driving hone all is well until about 20 mins into the journey. My IID tools is showing fan revs at between 800 and 1500 as expected. The fan revs then drop to 0 and the viscous fan kicks in.
Have been running around in it today and no problems whatsoever, no roaring of the viscous fan and the temp was reading 30C outside. Car goes in tomorrow for the new parts as mentioned earlier. Will see what happens.

Ivan
 D3 V8 SE
2007 Freelander 2 HSE TD4
2004 Freelander 1 HSE 
 
Post #206491629th Jun 2019 5:46 pm
View user's profile Send private message View poster's gallery Reply with quote
lynalldiscovery
 


Member Since: 22 Dec 2009
Location: Maidstone
Posts: 5593

United Kingdom 2006 Discovery 3 TDV6 Metropolis LE Auto Bonatti GreyDiscovery 3

We get lots of problems with the electric/viscous fan hubs at work on the trucks, either wiring or an internal fault, can also chuck on the engine light for good measure.
 I can start an argument in an empty room.  
Post #206496629th Jun 2019 11:33 pm
View user's profile Send private message View poster's gallery Reply with quote
Ivan
 


Member Since: 01 Mar 2011
Location: Caverswall Staffordshire
Posts: 92

United Kingdom 2005 Discovery 3 4.4 V8 SE Auto Zambezi SilverDiscovery 3

Right, I had the radiator replaced, the fan replaced and the thermostat housing and associated bits replaced and all is now well. Viscous fan revs are displaying properly even when the fan kicks in.
Just got back from holiday in the Italian/french Alps and all worked fine even in temps of 32C. The fan did come on a couple of times but I did expect that as I was climbing a steep hill in low range with the temp outside at 32C.

Ivan
 D3 V8 SE
2007 Freelander 2 HSE TD4
2004 Freelander 1 HSE 
 
Post #206895217th Jul 2019 1:08 pm
View user's profile Send private message View poster's gallery Post Reply
Display posts from the last:  
Post Reply Back to top
Page 1 of 1
Jump to:  
Previous Topic | Next Topic >


Posting Rules
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



DISCO3.CO.UK Copyright © 2004-2019 Futuranet Ltd & Martin Lewis
DISCO3.CO.UK RSS Feed - All Forums

DISCO3.CO.UK is independent and not affiliated to Land Rover.
Switch to Mobile Site