martinmilne

right my fan takes ages to kick in so want to fit a manual switch for when its really hot but would like to keep it automatic for normal use how hard and wat do i need to do pls help

martinmilne

anyone ?

B16CVH

piece of piss, bridge into the two wires that come off the fan switch (dont cut them), run these wires into the dash and to a standard flick switch, i brought a nice dinky one from Maplin, was about £2!

©hatter Box

why dont you find the fault if it kicks in late and fix it??

orion_crazy_carl

iTrader: (3)

the switch will either work or not, so its not doing anything wrong really!how far up the temp scale does it come on?

Hank Moody

thing about manual switch is you forget to turn it on/off

ROB7656

have one on mine but if your cooling system is up to scratch there is no need.

notroubleclubber

You can get an uprated thermostat i believe that kick in earlier.Have a search. Was gonna fit this and a switch as well as keeping it automatic too.

martinmilne

kicks in when its red hot at the top of the guage but not sure if its the right tempreture sender as it seems to stay really low like under quater on the guage when running normal but soon shoots up in traffic !!!!!

mark2

hi
i have found that you can use a different operating temp switch they are marked on the face
i use a 88/93degree and my fan kicks in on the m thats in the car now it has a green end
i used a 98/103degree orange end the proper one for the car and fan kicked in 3/4 up the guage
there is another colour think its blue but dont know temp range.
are you using 2 fans or 1 fan as i have 2 on mine and when 1 played up mine ran between n and o on guage untill the fan was put right
mark

martinmilne

got one fan and think its the blue one

Marts

iTrader: (1)

If you do fit the switch, get one with a light on... or add an led to the circuit. That way you'll know when its on and when its not. Leaving the switch on and not realising will cause the switch to overheat and die - like mine did

matts1

Had one on my old turbo, but was manual, pain in the ass as you do forget and then think s**t!!! as you see the needle in the red.

Or, you get a call from the garage to say they left it idling and blew the red like I did, luckily the previous owner had botched the rad so it gave out before the head gasket - phew.

My fault as I had neglected to tell the garage about the switch lol!!

Personally I would look to improve the cooling system to keep the temps down as it will make for less panic in traffic!

nigel b

if you run a switch add a relay onto the fan circuit

tiff_lee

As Nigel said use a relay, the making and breaking of the switch will eventually burn it out, you could wire the switch into the standard fan relay...

orion_rst

Have you checked the water level? You might have a leak. At first I thought it was the thermostat but it doesn't make sense if it switches on when it's red hot. The problem is not the switch imo.

Anyway I wouldn't recommend a manual switch cause if you forget to turn it on... GOOD LUCK! But a lower temp thermostat yes. But first fix the problem!

Chopshop85

iTrader: (4)

just get yourself a manual flick switch inside the car with an led so you know when its on, and get yourself an 82 degree thermostat.
thats what i did, switch the fans on in traffic and my temp never goes above "o"

mark2

get the lower degree rating fan switch u can, i use the green one and you never have to forget to switch it on and regretting it later if that dont sort it you then need to investigate it further or add another fan ,two 9inch fans do the job
mark2

Micky

When fiting the fan senser switch into the thermostat housing do you use some sealant or just screw it in straight???Regards,Micky

mark2

fan switch on thermo housing should have a sealing washer normaly copper no sealant required just do to right torque setting job done
mark2

martinmilne

well thanks for the ideas might try the lower temp sender 1st and maybe two fans just thought switch would be easy fix but might cuase more damage