Hi XXXXXXXXXXXXXX.
Thank you for asking your question on JustAnswer.
Its not very common to clog an injector. What makes you think its clogged?
Did they say which injector is is? (cylinder #)
If its clogged and like I said thats very rare you should be able to have them clean the injectors and this is done with out removing them. This usually runs one hour of labor and the price of the injector cleaner. If they have to remove that injector (#3) its located under the intake and I am enclosing the labor time to remove and replace the injector.
ASE Certified Technician
ASE Certs and Ford Certs