wolfie123 Posted August 8, 2014 Share Posted August 8, 2014 Fiesta14 diesel dash speedo reading 5 lines no mileage then no speed reading intermittent returns and increase in radio volume speedo works for a few minutes and returns to blank Quote Link to comment Share on other sites More sharing options...
Stoney871 Posted August 8, 2014 Share Posted August 8, 2014 Speed sensor (vss). Classic symptoms. The radio volume thing is caused by what is known as the AVC, (the radio gets louder to overcome road noise and is dependent on a signal from the VSS to function). Until you get the VSS fixed you can go into the radio menu and set AVC value to 0. A new sensor isn't expensive but removing the old one can be a bit of a chore. A new locking pin is essential as the old one will definitely not survive the procedure. Everything you need (and cheaper than from Ford)- http://pages.ebay.com/link/?nav=item.view&id=160898634244&alt=web Sent from my SM-G900F using Ford OC mobile app 1 Quote Link to comment Share on other sites More sharing options...
wolfie123 Posted August 9, 2014 Author Share Posted August 9, 2014 Thank you for the information Quote Link to comment Share on other sites More sharing options...
wolfie123 Posted August 9, 2014 Author Share Posted August 9, 2014 Thank you for the information Quote Link to comment Share on other sites More sharing options...
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