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        General >> Problems >> radiator fans
        
(Message started by: David_South_West on Sep 22^nd, 2005, 12:41pm)

Title: radiator fans
Post by David_South_West on Sep 22^nd, 2005, 12:41pm

I have a problem details below..
2.9 24 v
Both radiator fans switch on after 5 secs of starting engine.
coolant level ok
engine temp ok
fuse boxes clean and dry
disconnect large relay under bonnet they switch off

suspect temp sender but where is it ?

Any ideas anyone ?

Thanks

Title: Re: radiator fans
Post by scorpio_man on Sep 22^nd, 2005, 1:05pm

hi there

that's the default setting. if the a/c is on or if you select demist the windscreen (even if the green a/c light is OFF), then the both fans run in slow mode and will cycle on and off with the a/c compressor.

hth

Title: Re: radiator fans
Post by David_South_West on Sep 22^nd, 2005, 1:18pm

I meant the two fans in the engine compartment on the radiator.
haven't noticed them running before when engine cold

Thanks

Title: Re: radiator fans
Post by scorpio_man on Sep 22^nd, 2005, 1:27pm

hi there

yep, that's the 2 i'm on about! ;D it forces air through the a/c condensor radiator.

have you had any work done on the a/c or heater system lately?

as i said earlier, that is the normal fan(s) function.

Title: Re: radiator fans
Post by Danny_R on Sep 22^nd, 2005, 2:09pm

Andrew is right. They do come on immediately with the AC. Try turning the dial to OFF so the displays show -- on each side. When you start the car from cold the fans should NOT come on.

Danny_R

Title: Re: radiator fans
Post by David_South_West on Sep 22^nd, 2005, 2:55pm

with air con off both fans still run !!!!!

Title: Re: radiator fans
Post by craig on Sep 22^nd, 2005, 3:11pm

do they run fast or slow ?

Title: Re: radiator fans
Post by David_South_West on Sep 22^nd, 2005, 3:47pm

fast!!!!

David

Title: Re: radiator fans
Post by craig on Sep 22^nd, 2005, 3:59pm

argh...!!!!
check your pm's

Title: Re: radiator fans
Post by David_South_West on Sep 27^th, 2005, 12:29pm

Problem turned out to be engine temp sensor(next to temp guage sensor)very slight corrosion on connector.
Thanks for help and suggestions.
David

Title: Re: radiator fans
Post by Alf on Oct 10^th, 2005, 8:04am

wooo-hoooo I have to check that, it's the same on my !!! is it the 2 wire or the 1 wire sensor? which is which?

thanks,

Title: Re: radiator fans
Post by David_South_West on Oct 10^th, 2005, 2:54pm

Had recent problem with fans .fan contolled by engine temp sender.there are two sensors on the front of the engine on the thermostat housing.The sensor with one wire is for the temp guage on the dash the sensor below this has two wires.One wire is feed the other goes to the pcm module.two wires come from the module and go to the fan relay located front drivers side behind headlight..can't miss it it's long and green....
found fans switch on when thermostat housing is about 95 degrees.

Title: Cruise Control not working
Post by jdevlin on Oct 17^th, 2005, 5:54pm

94 Scorpio.Cruise US,suspect leak on rubber hose that goes through bulkhead from engine bay.Took hose off pump and found to leak(Blow or suck), no leak when hose shut off at bulkhead.Help please. Do I have to take car apart to replace/ check. ?