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        General >> Problems >> Radiator Cold, Car Hot
        
(Message started by: KronosKeylock on Sep 27^th, 2006, 4:37pm)

Title: Radiator Cold, Car Hot
Post by KronosKeylock on Sep 27^th, 2006, 4:37pm

As im booked in for the Garage, ( see earlier posts), can someone explain to me why my Radiator is cold to the touch whilst my top tube is hot?, soz for dominating the boards at the mo

Title: Re: Radiator Cold, Car Hot
Post by crop on Sep 27^th, 2006, 5:48pm

If it is just after you start up thats ok as the thermostat doen't allow the water to circulate until its hot enough.

Title: Re: Radiator Cold, Car Hot
Post by TiberiuS on Sep 27^th, 2006, 6:16pm

Airlock? radiator blocked with sludge?

Does the car run at a reasonable temp? if the cooling system isn't well, it'll let you know soon enough ;)

Title: Re: Radiator Cold, Car Hot
Post by Matt on Sep 27^th, 2006, 6:20pm

which radiator are you touching?

the cooling system can only be touched from inside the engine bay as the air con rad sits in front (thats the one you can see)

Title: Re: Radiator Cold, Car Hot
Post by KronosKeylock on Sep 27^th, 2006, 7:00pm

I didnt know that>!!, Is that why it has two big fans on the inside of the engine compartment

Title: Re: Radiator Cold, Car Hot
Post by KronosKeylock on Sep 27^th, 2006, 7:03pm

One of these seems to be on all the time, I thought this was causing my battery drain problem

Title: Re: Radiator Cold, Car Hot
Post by Matt on Sep 27^th, 2006, 7:19pm

they should flick on and off as and when needed, they have 2 speeds slow (i think when either the ac or normal coolant temp) and the fast is when both are on,

the front rad (the one you can see) is just the ac, it's the same size as the coolant rad but not as thick, then the main rad is behind that, hidden by the front cross panel

some cars have 3 rads! a third is an oil cooler for the auto box which sits under the main rad, slightly forward, you cant miss it if you look under the car

Title: Re: Radiator Cold, Car Hot
Post by sector-9 on Sep 28^th, 2006, 8:58pm

The design of the fan circuit is such that both fans should run together at the same speed (either slow or fast, depending on engine temp and if a/c is on or not). If only one fan is working then you need to investigate if power is getting to the non-running fan. On my diesel I found the wiring which is clipped to the front crossmember and passes in front of the radiator had burnt out and disintegrated - this is the wiring for the fan circuit and EGR (on the diesel anyhow).

Darren

Title: Re: Radiator Cold, Car Hot
Post by Matt on Sep 28^th, 2006, 9:02pm

hey

look here http://www.fordscorpio.co.uk/faultfinds.htm

scroll down to the AIR CONDITIONING/CLIMATE CONTROL CONCERNS

follow the blue highlighted bits