i've done a search on the forum and can't find a thread exactly about this issue, hence this new thread . .
I've got a 2001 1.8TS 156 Sportwagon that gets hot when stopped because the cooling fan doesn't kick in.
I've done the normal things (new resistor), checked the actual fan etc . . .
I've now also opened the relay and manually switched it on (with a bit of card closing the contact!) and the fan starts up fine.
So it appears the problem is before the relay . . Has anyone any ideas what to check next, or maybe even a wiring diagram so I can go through the loom with my multimeter and see where all the powers gone ??!
If you get AlfaDiag (or fiatecuscan probably) you can run a test a manually switch the fans on using the ECU ...
... What temp is your car going up to? the low speed fan comes on a 95deg ... and my car doesn't go above 91 (but then it is a diesel) ... also what condition is your radiator in??
I still have this problom on my Alfa 1.8TS but if I pull the sensor of the thermostat housing the fan fails to cut in. I did pull the cover off the central relay and put my fingers on either side of the bare relay, without the engine being switched on and this tripped the fan. So then I tried to clean up the relay terminal, then nothing at alll.....Thought the loom may be at fault so replaced that, car now onlly turns over but will not start, neighbour said he had a twin spark. and said he had had a similar problem but this tripped the anti theft alarm so that the engine will not start...
Yes I had exactly the same problem, replaced all the same above bits and even changed the portion of the loom which governs all of the above. I gave up in the end and took it into my local dealership expecting to shell out the equivilent price of a another 2nd hand Alfa. It appears that a wire in the loom between the back of the dash and the main loom on the engine side of the bulkhead had somehow come adrift inside the sleeving of the loom. though quite how this could happen is beyond me.They used a multimeter to discover the lack of feed. and ran a substitute wire to by pass the original bewgered one ....Cost £80 . but they said I would never have found it in a month of sundays, which is reassuring. !!!
If you'd never find it, then how did they? or is it because they didn't and just reconnected a plug???
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