the locks are not the problem its the key!
or more exactly the immoblisers not recognising it!
if you have an old key that worked before you swoped the locks you need to dismantle that key and find a small glass transponder inside!
swop that with the one in the new key and it should start!
if you havent got an old key then you need to have your immobliser reprogramed by ford it costs about £70
Gavin R, August 2009