Just a quickie, I've had a look around the forum but not found an answer.

The Mrs wipers on her Fusion work ok on normal and fast but on intermittent they don't do a full cycle and stop anywhere on the screen.

Is this likely to be the relay rather than the motor as the wipers are working on the fully on setting?

 

usually its the relay

 

The wifes mk1 focus was the same. I put a new relay in and it cured it.

 

As expected the relay isn't labelled so took them out one at a time and it seems that a grey 70 amp one being removed stopped the wipers and fans, I assume it's the culprit.

 

http://www.ebay.co.uk/itm/1818243447...%3AMEBIDX%3AIT

Would this be ok? It's 12V 70A.

 

normally its the internal fusebox with smaller rectangle relays 70a is massive and more suitable for engine running/heavy load etc, consult your drivers handbook for relay location

 

Yeah I removed the smaller ones too but it still carried on in intermittent mode (as well as it can at the moment). As I said, the 70A one that stopped it knocked out the blowers too, can anyone confirm if this is definitely the one?

 

the 70amp one will supply more than one circuit so if other things like blowers etc are working from that then it wont be that relay, in the drivers handbook it will tell you exactly what relay controls what circuit

 

Looks like it was R3 I took out (ignition), the manual only specifies the front wiper fuse but none of the relays. Surely it needn't be this complicated.