Ford Transit 2002 Owner's Manual page 1384

37. Install the air cleaner.
For additional information, refer to:
(303-12 Intake Air Distribution and Filtering,
Removal and Installation).
38. WARNING: Before the system is tested
for normal operation, carry out the fuel
system leak test. Failure to follow this
instruction may result in personal injury.
Check the fuel system for leaks.
For additional information, refer to:
Leak Test (310-00B Fuel System - General
Information - 1.8L Duratec-DOHC (85kW/115PS)
- Zetec, Liquefied Petroleum Gas (LPG), General
Procedures).
http://vnx.su
Air Cleaner
Fuel System