cooling fans.

[ASH 1]

Hi,does anybody out there know when the under engine fan cuts-in?Does it cut in when the rad fan comes on?(havn't managed to get the engine hot enough yet to cut the fan in)uses the same thermo switch as the rad fan? The same sort of questions for the fan fitted onto the intercooler?? Don't think I have any problems,but am interested to know the ins and outs of my new largo.I have never seen these fans on any other cars/vans I have owned,many thanks to anybody who can shed some light.Thanks Ashley.

[Sparkle Wagon]

fans  give me an hour or 2 to write you an essay on the subject

[NRG]

Bit cold for fans to kick in right now. Wait till weather warms up then if theres a problem Sparkley the cooling fan expert will see you right. 

[ASH 1]

hehe,don't worry not after an essay on them,just the basics.Is rather an odd place to fit the intercooler for the turbo tho,not directly in the air flow etc,I guess that is why there is a fan.....would of thought tho because of the extra load of running the fan that  would counter balance the benifits of the cooled air going into the turbo for  little extra power which it could produce.?Ash

[Sparkle Wagon]

front rad fans the sensor for that is under the engine tunnel by the stat housing temp guage sender is on top stat housing
engine one is screwed in th engine tunnel under the centre consul
sensor for intercooler is screwed in the cooler

[ASH 1]

Many thanks sparkle wagon for your info.As said no problems with anything, just curious as never seen them fitted before on any other vechicles.

[ASH 1]

Has anybody seen/heard the under engine fan ever run in this country?summer or not?..anybody removed it and had any problems?still curious 

[Sparkle Wagon]

yep they do come on but its not hot enough weather yet
i have heard them you will know when it comes on

[beckisbus]

yep, had our fans on and off and on and off,lol, we got a little gadget that determines when they kick in, sparkly might have more info on this gadget as he put us on to it,     ........

[drifter.p]

when on the gauge do the radiator fans kick in
the temp got up to the line under the max today while sitting in traffic and dont think they came on
once passed the traffic and got moving the needle came down to half way

petrol 2.4 4x4

[NRG]

i'd investigate that if i was you as mines 2.4 and never ever goes over half way.

[drifter.p]

where is the fan switch nrg
ive had a quick look but couldnt find it
or do i have to take the middle panel off inside

[NRG]

the only temp switch i know of is under drivers seat but i think this is just temp gauge 
not too sure where fan switch is

[tommy]

Radiator fan is controlled by ecu via engine temp sensor on thermostat housing the one with two pins! At least on the diesel don't know about the petrol yet! The engine fan is operated by the sensor at the top of the engine cover! if you remove the two pin sensor from the thermostat housing and place it in boiling water the fans should come on! Also on my diesel before it died the engine fan use to come on when after a drive and then sitting on idle for 5-10 mins only ran for 20 secs then off. The radiator fans from memory barely ever came on unless A/C was on then they are operated from a timer so they should go on and off but only if the A/C works and has sufficent fluid in the system!

[drifter.p]

kool
off to nissans it is then and order a new sensor
i found it its the red plugs and sensor on the thermostat housing