Wagoneer L4-150 2.5L VIN E TBI (1990)
Fillpipe Restrictor: Description and Operation
FUEL HOSES
The hoses used on fuel injected models are of a special type and only hoses marked EFI/EFM may be used as replacements.
FUEL FITTINGS AND CLAMPS
Their are two ways that the fuel lines are attached to various fuel system components. The first way is with a rolled edge type clamp (the purpose of the
rolled edge is to prevent the clamp from cutting the fuel hoses).
Fuel Line Quick Connect Fittings
Fuel Line Quick Connect
The second type of fitting is called a Chassis Fuel Tube Quick-Connect fuel fitting. The Chassis Fuel Tube Quick-Connect fittings are only used at the
end of the chassis fuel lines, and they consist of an O-ring and a plastic release collar to disconnect the fitting from the fuel tube.
NO-LEAD FILLER TUBE
All catalyst equipped models have a special filler tube. The filler tube also contains a deflector to prevent the addition of fuel by other than an unleaded
fuel nozzle. Labels are attached at the instrument panel and near the fuel door reading "unleaded fuel only" to remind the operator.
PRESSURE/VACUUM FILLER CAP
The loss of liquid fuel or vapor is prevented by using a filler cap which releases under 10.9 to 13.45 kPa (1.58 to 1.95 psi). Only caps with these
specifications may be used as replacements to maintain the integrity of the fuel system.
