406 radiator fan runs on

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Juper Wort - 25 Oct 2004 11:44 GMT

HI
1999 406 2.0

Radiator fan ran on after car turned off. Battery ran flat.
I had to disconnect battery every time i parked.
did a 50 mile run, didn't help. Engine temp didn't go above 90 on the dash
guage.
A bit of fiddling about, squashed a few hoses to maybe move an air bubble,
removed a couple of leaves.

Now seems ok.

Should i be looking for a thermostat, if so, where is it.
Would alot of rain & puddles mabe cause a short in a sensor somwhere ?

maybe someone could help.

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MICHAEL ROCHE - 25 Oct 2004 18:59 GMT

Juper
Try the fan control relays, there are three of these if you have a two fan
model. They are controlled by the ECU which reacts to a control thermostat.
On my 406 I believe they are located under the wheel arch passenger side.
Haynes manual shows a wiring diagram for the three relays but the method of
energising differs on some models from the Haynes manuel.
Mike

> HI
> 1999 406 2.0
[quoted text clipped - 12 lines]
>
> maybe someone could help.

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Juper Wort - 26 Oct 2004 12:16 GMT

Thanks
Will take a look
Knowing that most of the puddles are in the gutter side of the road &
beyond, I suppose its possible that water may have got in that side & messed
about ?

JW

> Juper
> Try the fan control relays, there are three of these if you have a two fan
[quoted text clipped - 19 lines]
> >
> > maybe someone could help.

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s.parcel - 06 Jan 2005 21:57 GMT

this can be quite normal dont worry about it , it should stop quite soon after
you stop the car.

> HI
> 1999 406 2.0
[quoted text clipped - 12 lines]
>
> maybe someone could help.

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Malc - 07 Jan 2005 13:24 GMT

But it isn't normal is it? The fan ran on and flattened the battery is
what the post said.

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Malc

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