Model Year |
Changes/Revisions/Updates |
1996 |
Split shot injectors (AB code) introduced for F-Series trucks w/ CA emissions |
Revised 192° F thermostat replaces previous 205° F thermostat; new thermostat is physically longer |
|
Revised water pump design |
|
Revised flexplate for automatic transmission equipped trucks |
|
1997 |
Split shot injectors (AB code) introduced for Econoline vans w/ CA emissions |
Revised engine block featuring thicker valley walls (serial 375549+) |
|
Revised front engine cover (serial 375549+) |
|
Relocated oil pickup tube and revised oil pan (serial 375549+) |
|
Redesigned head gasket w/ individually stamped pushrod bores |
|
1998 |
Electronically controlled wastegate introduced |
Redesigned fuel system, various changes |
|
Engine serial number label added to driver side valve cover |
|
Revised engine block casting (serial 571930+) |
|
Revised crankshaft, larger counterweights |
|
Intermediate piston ring width increased, revised piston design |
|
Revised under valve cover harness (UVCH), single 9 pin connector replaces pair of 5 pin connectors on previous design, matching engine wiring harness changes |
|
F-Series engines adopt Econoline style exhaust manifolds and up-pipes |
|
Extended oil fill tube added (easier access when filling crankcase) |
|
Revised water pump, reduced impeller diameter |
|
Revised engine mounts for Super Duty platform |
|
Revised air filter and air filter housing |
|
Single mass flywheel standard on all manual transmission equipped trucks (ZF 6 speed) |
|
New two piece high pressure oil pump (HPOP) reservoir |
|
High pressure oil pump (HPOP) converted to snap-to-connect inlet/outlet fittings |
|
Manifold air temperature (MAT) sensor added (F-Series trucks only) |
|
Analog manifold absolute pressure (MAP) sensor replaces previous digital sensor |
|
Upgraded camshaft position sensor (CPS) |
|
Engine receives 9% more horsepower and 15% greater torque |
|
1999 |
Split shot injectors (AD code) introduced for all engines (Federal & CA emissions) |
Chassis mounted electric lift pump replaces cam-driven mechanical pump |
|
Revised camshaft w/ fuel pump lobe removed |
|
1999.5 |
Intercooler introduced for all F-Series trucks |
Revised turbocharger compressor wheel inducer/exducer diameter, larger compressor housing outlet, larger turbocharger pedestal |
|
Revised charge-air-cooler (intercooler) crossover pipe w/ intake air heater (IAH) |
|
Intake manifold cover inlet diameter increased to 3" |
|
Revised injector design w/ low mass poppet valve, tungsten carbide plunger/barrel (designed to provide greater protection from the upcoming ULSD standards) |
|
New high pressure oil pump (HPOP) design to match revised injector performance (requiring greater oil flowrate); injectors and HPOP not interchangeable w/ earlier engines |
|
Dual element fuel filter introduced; incoming and return fuel is filtered |
|
New fuel pressure regulator |