My cooling fan doesnt seem to want to kick on at all, I dont know which fuses / relays to check, my chilton has a fuse diagram for the 93+, which does me no good. if anyone can help me that would be sick!
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Re: 1991 Cabriolet Cooling Issues
On my old 93 Golf I think the thermo switch was held in by a flat forked piece of metal which had to be slid sideways to allow the switch to be pulled out. Can you upload a photo so we can take a closer look?
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disconnect the temperature sensor the fans should start in a few seconds that would mean your relay is good usually the fans work if the engine is full of anti freeze so the temperature sensor can kick relay then relay starts fans.
You have a relay there are 2 speeds low speed and high speed this is controled by a cooling fan module if you changed fan and it does not work then you will need to check the fan module, first the relay its in the engine fuse junction box High speed is marked on the relay C1056 and low marked C1058, here is what you can do go to the high spped relay open thhe cover and expose the relay with key on collapse the relay does the fan come on? if it doesnt replace the fan module if it does you will still have to replace the fan module here is the location is at the radiator on the front (may be under shroud)
The cooling fan relay is located in the engine compartment just behing the left headlamp...not under the dash. There are cooling fan test connectors built into the wiring harness near the left strut tower. The cooling fan relay is controlled by the cooling fan temperature switch located on the rear of the engine. There are 3 temperature sending units on your car if it is equipped with a temperature gauge. If not, there are 2 sending units, One is for the computer and the other is for the fan relay.
The one for the cooling fan will have 2 wires, one Tan and Orange and the other Brown and White.
The cooling fans and cooling fan relay get their power from fusible links built into the wiring harness near the starter relay.
unplug the fan jump the conector with twelve volts if it comes on you need too do some extensive testing starting with the fuse and relay try turning on the a/c. the ac and coolant temp sensor control the fan if it douesnt come on repalce the fan chances are it will and you will probly need a auto tech too find the fault in that circuit if it is not the fuse go there first then the relay you probly dont know how to check them heres a quick trick swop it with onother one you knows works from another component see if it come on
Here are the cooling system diagnostic
steps...First does the cooling fan kick on (with engine hot)? If not,
check the fuse, if good then check the thermoswitch in the
radiator (it's about an inch and a half in diameter located on the
lower part of the radiator with two wires ) by disconnecting the
wires and touching them together (again, with engine hot...at least
190 degrees) if the fan comes on, you have a bad switch. If not
connect a 10 gauge jumper wire from the battery to the fan itself
(there are three terminals,,, one high, one low and ground). With
power direct from the battery (and a ground wire, if necessary) fan
should run... if not replace the fan assembly... if it does run then
you have a bad cooling fan relay. It will be located above the fuses on the fuse block... Hope this helps...;-)
there are relays not just fuses for the cooling fan. look under the hood there should be a black junction box open it and you will see several little black cubes those are relays. if you have the owners manual they will show what each one is for. start the vehicle and let it get to operating temp 180-190 degrees your fans normally kick on at this point what i normally do is take the relay for the a/c clutch and swap it for the radiator cooling fan if the fans kick on you know it was the relay. if they don't kick on then you know that the temp sensor on the radiator is bad., but before you go replacing anything make sure that there are no loose or missing wires. that all mplug connections are tight and not coroded and that with the engine off that the fan blades spin freely. once checking everything and you still have an issue then the fans are bad and need to replace it.. please rate this thanks