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Rear window de-mister and wiper not working


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Hi All, I'm new to this forum and am hoping someone out there can enlighten me about the causes of my car's little 'quirks' and how to fix them! It's a 1996 Ford Fiesta Encore.

Firstly, the rear wiper has always been a bit unpredictable; sometimes it works, sometimes it doesn't. Now it just doesn't. I've tried cleaning the copper contacts in the boot, which is apparently what makes the wiper work, but it hasn't made any difference.

Secondly, the rear window de-mister was fine until a couple of weeks ago when I noticed 4 of the lines weren't defrosting, and suddenly today none of them are working. The light still comes on when you press the button, but that's it.

Thirdly (but not so important) when the fans are on (blowing hot or cold), they make a kind of high-pitched warbling noise whenever the car steers to the left. Erm.....?

Many thanks to anyone who can help! J

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  • 2 weeks later...

Don't know if you solved this one yet mate, but I bet it's the problem I had. I too tried the copper contacts, thinking it was all to do with those. It seems everything relies on a good earth and the "proper" way of dealing with this is to add an additional earth cable between the tailgate and the rest of the body. I chose not to do this, I cleaned up the hinge pins and it's worked for me. Hope this helps.

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