Hi All,
I've tried googling this, but am not getting any conclusive info, and I am still finding my feet with modern stuff (I find trouble shooting carbs etc much easier!!). The Haynes isn't especially helpful either, and the sections relating to this don't really match what's on my car. It is a 2001 106 1.1 Independance, which I gather was the cheapest motorised tin can that Pug sold at the time.
Ever since I acquired it five years ago, the cooling fan hasn't worked. Up until now, this hasn't been an issue, as my commute to and from work is on country roads, rather than in traffic jams. The temp light (no proper gauge...) has come on about twice before now (traffic queue on hot summer's day), but wacking on the heater full blast has fixed things.
That was until earlier this evening, when whilst driving along on a clear road, the temp light illuminated. Switching on the heater gave only cold air, but I was only about 500 yards from home.
Once home, and it had cooled down, I investigated further, and bled the cooling system, as I suspected an air lock (hence no coolant through the heater) which produced a working heater, and a much happier car. There still appears to be a bit of an air lock though as it is spitting out coolant through the cap (doesn't appear to be the usual head gasket symptoms, and the car drives fine).
However, I think it's now time to sort the fan... The manual says I should have a fan switch on the radiator, but there is just an OEM looking blanking plug and some drain plugs. I've hooked the fan directly to the battery, and it works. My late grandfather (who gave it to me when he stopped driving) had bodged up a switch to the dash for manual control of the fan at some point previously. However, This wiring however seems only to operate on the earth side of the circuit, so what he did seems that it could only have switched off a permenantly running fan, rather than switched on one which wasn't activating.
All the diagnostics for the fan talk about bridging the plug for the fan, to give the appropriate signal through that circuit. However, I am getting conflicting info on which of the plugs I can find elsewhere is actually the correct one...
Arrow is the location where the Haynes says that the fan switch should be.
Circle is the bleed drain on the thermostat housing
Square is the adjacent switch / wiring plug
Here's a close up pic of that plug:
However, there is also a similar switch a bit lower down on that side of the engine:
(the green loom connector is the same one shown in the pic above)
The blanking plug just below the top hose is where the Haynes says it supposed to be (one of the bleeds just above the hose):
Here's the wiring diag from the Haynes:
Now being a base model, I assumed that it was the single speed fan, which matches the number of wires off what I think is the switch but it has a relay mounted in a box that is moulded into the fan shroud, which suggests it has a twin speed fan:
Anyhow, I am rather confused by all this so any guidance on identifying / confirming which is the fan switch would be very much appreciated, along with any other advice in sorting this out!
I've tried googling this, but am not getting any conclusive info, and I am still finding my feet with modern stuff (I find trouble shooting carbs etc much easier!!). The Haynes isn't especially helpful either, and the sections relating to this don't really match what's on my car. It is a 2001 106 1.1 Independance, which I gather was the cheapest motorised tin can that Pug sold at the time.
Ever since I acquired it five years ago, the cooling fan hasn't worked. Up until now, this hasn't been an issue, as my commute to and from work is on country roads, rather than in traffic jams. The temp light (no proper gauge...) has come on about twice before now (traffic queue on hot summer's day), but wacking on the heater full blast has fixed things.
That was until earlier this evening, when whilst driving along on a clear road, the temp light illuminated. Switching on the heater gave only cold air, but I was only about 500 yards from home.
Once home, and it had cooled down, I investigated further, and bled the cooling system, as I suspected an air lock (hence no coolant through the heater) which produced a working heater, and a much happier car. There still appears to be a bit of an air lock though as it is spitting out coolant through the cap (doesn't appear to be the usual head gasket symptoms, and the car drives fine).
However, I think it's now time to sort the fan... The manual says I should have a fan switch on the radiator, but there is just an OEM looking blanking plug and some drain plugs. I've hooked the fan directly to the battery, and it works. My late grandfather (who gave it to me when he stopped driving) had bodged up a switch to the dash for manual control of the fan at some point previously. However, This wiring however seems only to operate on the earth side of the circuit, so what he did seems that it could only have switched off a permenantly running fan, rather than switched on one which wasn't activating.
All the diagnostics for the fan talk about bridging the plug for the fan, to give the appropriate signal through that circuit. However, I am getting conflicting info on which of the plugs I can find elsewhere is actually the correct one...
Arrow is the location where the Haynes says that the fan switch should be.
Circle is the bleed drain on the thermostat housing
Square is the adjacent switch / wiring plug
Here's a close up pic of that plug:
However, there is also a similar switch a bit lower down on that side of the engine:
(the green loom connector is the same one shown in the pic above)
The blanking plug just below the top hose is where the Haynes says it supposed to be (one of the bleeds just above the hose):
Here's the wiring diag from the Haynes:
Now being a base model, I assumed that it was the single speed fan, which matches the number of wires off what I think is the switch but it has a relay mounted in a box that is moulded into the fan shroud, which suggests it has a twin speed fan:
Anyhow, I am rather confused by all this so any guidance on identifying / confirming which is the fan switch would be very much appreciated, along with any other advice in sorting this out!
