1999 1.6 Zetec - intermittent speedo - Focus 1.6 Zetec S
Hi,

I have an intermittent fault with my speedometer.
Sometimes it works and sometimes it doesn't.
When it's not working, the mileage doesn't increase either!!!
Any thoughts?

{subject line made less vague by including a brief summary of the problem}

Edited by Dynamic Dave on 21/03/2008 at 13:31

1999 1.6 Zetec - intermittent speedo - Screwloose

Focii suffer from failed speed sensors on the differential housing; cheap - but a swine to do if they're corroded.
1999 1.6 Zetec - intermittent speedo - mikej
Sounds like it could be the vehicle speed sensor (vss) to me - search this forum for 'vss' in the message body and set the time to '< 1 year' and you'll get plenty of info.

Here's a previous post from me on the same subject :

www.honestjohn.co.uk/forum/post/index.htm?v=e&t=54...6

...and my DIY instructions are here :

www.honestjohn.co.uk/forum/post/index.htm?t=15028&...3

As your car is of a similar age to mine, your vss might also be difficult to remove so be warned it might not be trivial if you're DIYing it !