PassionFord - Ford Focus, Escort & RS Forum Discussion

PassionFord - Ford Focus, Escort & RS Forum Discussion (https://passionford.com/forum/index.php)
-   Ford Sierra/Sapphire/RS500 Cosworth (https://passionford.com/forum/ford-sierra-sapphire-rs500-cosworth-16/)
-   -   Fan again (https://passionford.com/forum/ford-sierra-sapphire-rs500-cosworth/432434-fan-again.html)

chrismjones 15-07-2012 11:59 AM

Fan again
 
On my sappy 4x4 every time the fans cut in it blows the 30 amp fuse in the fuse box any suggestions

William MK2 Cosworth 15-07-2012 12:17 PM

either the fan is knackered, or you need to rewire them, as the wires can get really hot if they have to much current passing through

chrismjones 15-07-2012 12:30 PM

Well when you put a new fuse in the fans come on then the next time it cuts in it blows again it's only just started happening

RS500/364 15-07-2012 12:42 PM

Fan loom easy to make and well pm if you want one

martysmartie 16-07-2012 05:42 PM

You need to rewire them, the wiring was substandard when new leave alone now, it's a disaster and can end up causing a fire!

The actual problem most likely is a short, I don't think the fans will be causing the problem!

If you do a search of the subject on here, there is plenty of information and diagrams etc for the rewire, the loom is either DIY or you can buy pre made ones!

This along with the fuel pump wiring are two chronic weak points!

Martin

chrismjones 16-07-2012 08:22 PM

Cheers mate I've ordered a new loom re wire from msd today do you no if it's a simple job to fit

rog 16-07-2012 08:26 PM

Easy to fit mate, basically just uses the fan switch wire as a trigger for a relay, then you have a connection to battery +ve & -ve, then to fans.

chrismjones 18-07-2012 07:18 PM

Well my new loom arrived today and it looks straight forward just hoping the sun comes out one day so I can fit it cheers for your help people


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