Frelander 2. Manual — part 198

Item

Part Number

Description

1

-

Thermal control module

2

-

Securing bolt (2 off)

3

-

Securing stud and nut (2 off)

The cooling system thermal control module is secured to the rear of the cylinder head by 2 studs with nuts and 2 bolts,
and is sealed to the head with an O-ring. The module contains the cooling system thermostat and forms the junction for
the cooling system hoses.
For additional information, refer to:

Engine Cooling

(303-03B Engine Cooling - TD4 2.2L Diesel, Description and Operation).

Vacuum Pump

Item

Part Number

Description

1

-

Connection to brake booster

2

-

Vacuum pump

3

-

Connection to port de-activation valve

The vacuum pump is mounted with 3 bolts to the rear LH side of the cylinder head, and is driven by the intake camshaft.
The pump housing is manufactured with a flanged face and a cylindrical housing that contains the pump drive shaft. The
drive shaft housing protrudes into the cylinder head housing and is sealed with an O-ring. The end of the drive shaft is
formed with a drive lug that locates in a corresponding slot formed in the end of the intake camshaft.

The vacuum pump is used for brake booster operation, and actuation of the intake manifold port de-activation device. For
additional information, refer to:

Brake Booster

(206-07 Power Brake Actuation, Description and Operation),

Electronic Engine Controls (303-14 Electronic Engine Controls - 2.2L Duratorq - Td4, Description and Operation),

Intake Air Distribution and Filtering

(303-12B Intake Air Distribution and Filtering - TD4 2.2L Diesel, Description and

Operation).

High-Pressure Fuel Pump

• NOTE: HP pump protective crash shield not shown.

Item

Part Number

Description

1

-

High-pressure fuel pump

2

-

Bolt (3 off)

The high-pressure fuel pump is mounted with 3 bolts to the rear RH side of the cylinder head, and is driven by the exhaust
camshaft. The pump housing is manufactured with a flanged face, and a cylindrical housing containing the pump drive
shaft. The drive shaft housing protrudes into the cylinder head housing and is sealed with an O-ring.

A drive plate is installed over the drive shaft end, and connects to a corresponding slot formed in the end of the exhaust
camshaft.

A crash shield is installed to the front of the HP fuel pump to provide protection during a frontal impact.

The fuel pump is a 3 radial piston type that delivers fuel to the common fuel rail, under the control of the ECM. For
additional information, refer to:

Fuel Charging and Controls

(303-04B Fuel Charging and Controls - TD4 2.2L Diesel, Description and Operation),

Electronic Engine Controls (303-14 Electronic Engine Controls - 2.2L Duratorq - Td4, Description and Operation).

High-Pressure Common Fuel Rail

Item

Part Number

Description

1

-

High-pressure common fuel rail

2

-

Bolt (2 off)

The common fuel rail is manufactured from forged steel and is secured with 2 bolts to the cylinder head, above the line of
the exhaust camshaft. The fuel rail stores pressurized fuel from the high-pressure fuel pump and delivers the fuel to the
fuel injectors.

The fuel rail pressure is regulated by a Pressure Control Valve (PCV) located at the fuel pump end of the fuel rail, under
the control of the ECM. A fuel pressure sensor installed in the opposite end of the fuel rail provides the actual fuel
pressure signal to the ECM. For additional information, refer to:

Fuel Charging and Controls

(303-04B Fuel Charging and Controls - TD4 2.2L Diesel, Description and Operation),

Electronic Engine Controls (303-14 Electronic Engine Controls - 2.2L Duratorq - Td4, Description and Operation).

Fuel Injectors