im looking at putting an over ride switch onto my cooling fan, would i have to fit an inline fuse or relay for when i put the switch on to stop the switch from burning out? or shouldnt i have to,
just some one said to me id wanan put a relay in it but i dont have a clue how they work lol
cheers
over ride switch for front cooling fan
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Grrrmachine
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Unless you've done an engine swap, your fan is a mechanical unit so there's no switch you can put in anyway.
Besides that, chopping in switches is little more than a bodge. If you're over-heating, fix your cooling system.
Besides that, chopping in switches is little more than a bodge. If you're over-heating, fix your cooling system.
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daymo69er
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its an m52b28 with an electric fan on the front of the radiator, it got hot the other day and it didnt come on, touch wood since ive re bled the system its not done it again just to be on the safe side id like a manual switchf or it,
just wasnt sure wether it will need a relay or fuse?
just wasnt sure wether it will need a relay or fuse?
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Grrrmachine
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You'll need both, but if you don't know what a relay or fuse are then I heavily suggest you don't dare touch the fan electrics, or there's a high chance you'll kill your engine.
Are you sure the fan works?
Are you sure the fan works?
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Motorhole
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Had these same worries myself recently!
First make sure there isn't an air pocket in the rad by the switch. Unscrew the switch a little and if coolant dribbles out, all good. Do this with the engine cold, of course.
To check the fan works, unplug the switch and join the terminals on the socket with a piece of wire. If the fan comes to life, all good, if not, the fan motor or something in the fan wiring is where your problem lies.
If you have coolant at the switch and the fan works fine when you jump the terminals, then try a new temp switch or test the one you have. A pan of water on the hob, a thermometer and a multimeter to check for continuity are all you need
First make sure there isn't an air pocket in the rad by the switch. Unscrew the switch a little and if coolant dribbles out, all good. Do this with the engine cold, of course.
To check the fan works, unplug the switch and join the terminals on the socket with a piece of wire. If the fan comes to life, all good, if not, the fan motor or something in the fan wiring is where your problem lies.
If you have coolant at the switch and the fan works fine when you jump the terminals, then try a new temp switch or test the one you have. A pan of water on the hob, a thermometer and a multimeter to check for continuity are all you need
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Brianmoooore
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If you already ave an electric fan that works automatically, then you are certain to already have a relay. If you insist on adding a switch as well, which, as already said, shouldn't be necessary, then it needs to be added in parallel with the thermoswitch contacts on the radiator.
This will (should) already be fused, so no further protection is needed.
This will (should) already be fused, so no further protection is needed.