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[Andy H]

Seriously though, if the hub has seized don't be surprised if blades break off.

[markspark]

Seriously though, if the hub has seized don't be surprised if blades break off.

i seem to remember this happening on sierra 4x4 2.8 that i have many years ago don't remember what i did to fix the fan i know the fan smashed the rad to bits is funny how things come back to you when you have problems later in life (im making myself feel old now)

[hoofing it]

the air-con fans blow air over both rads when stationary(if its working)the fans are a two stage they run slow all the time the ac is on and increase speed when engine temp hits +90c 

is there a way of testing the aircon fans does the aircon have to be on all the time for this to work ie the heater set at low temp (would that not do any harm)

as soon as a/c is switched on regardless of what cabin temp is set at the fans run at slow speed.
the only time they run fast is when its hot(i.e on a hot day),when you turn engine off and remove key the fans run for about 60secs then stop

[markspark]

the car has climate control i think it has an auto and an off button but you can work the heater by using the + and - buttons would i just leave it on auto to get the aircon working

[hoofing it]

on a facelift the eco should not be showing
on a pre facelift the eco light should be unlit
this means a/c is on