Originally Posted by seventystangfan
How often do you recommend replacing these parts? I distrust the people who owned my car prior to me and I hear that a bad timing belt causes bad problems for the Zetec.
You can see here for a maintenance guide
for your year.
Normally the belt is recommended for 100k iirc and would recommend you do the rest at the same time. Like mentioned above, parts wear out and at different times. If you bought your car with less than 100k and you dont have a service record/receipt of the job being done, then it might be due if you have more miles than that now.