Quote:
Originally Posted by Gaz64
And we have found start up current as the cause, as it nearly always is with electric motor faults.
I would swap your fans over, to prove the the fault to afan motor or EMF from the alternator. I will say the fan motor.
I don't think you have any other "resistances", otherwise they would be glowing with 100 amp spikes, so your wiring is good.
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Gaz is correct,
https://www.youtube.com/watch?v=gWJFzAMsIlc
and I'd also add pi$$ poor connections add to the excessive Amperage issue. Those are brush fans and as such are life limited on the service life. To isolate each fan I'd connect them one a time to a battery directly. Use an induction clamp on AMP meter. Taking the car out of the equation.
Reading your 1st post this issue started after the fuse holder replacements, so I'd relook at those connections for a the actual number of copper strands in each connection. (Just a few strands=Hi-AMP under load). Many of the cheaper wire strippers nick the copper strands and leave you with just a few actually intact.