Ask the service center their reasoning for replacing those parts. If they acquired CEL (check engine light) codes with an OBD-II scanner, then ask them what the codes are. Then repost your question with the answers and you will probably get more feedback.
1996 Contour SE Sedan 4D (Royal Blue)
Duratec V6 2.5L 24-valve DOHC
Automatic
75,000 miles
No Mods (unless you call the DMD a mod)
Replaced EGR valve (gunked up), EVR (EGR VR), PCV valve, and evaporative emissions hose (cracked).
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