Removing the Knock Sensor (KS)

Fig 1: Identifying Intake Pipe Between Front Cover Plate And Air Cleaner (ACL) Housing

Courtesy of VOLVO CARS OF NORTH AMERICA.

Remove 

• the pipe to the control module cover
• the intake manifold between the front cover plate and the air cleaner (ACL) housing
• the cable clamp
• the engine cooling fan (FC) relay

  Disconnect the two small connectors from the relay.

  Disconnect the connector to the right of the engine cooling fan (FC) relay. Put the wiring to one side.

  Disconnect the connectors on the fan shroud nearest the fan and the battery. Then continue with the connector from the evaporative emission system (EVAP) valve

• The evaporative emission system (EVAP) valve and its hose that runs downwards from the upper section of the fan shroud. Put the wiring to one side
• the four screws retaining the fan shroud at the upper edge

  Disconnect the connector from the upper right corner of the fan shroud

• the bracket from the upper section of the fan shroud
• the rubber section of the charge air pipe between the throttle body (TB) and radiator
• the two plastic washers/spacers from the fan shroud.

Fig 2: Identifying Pipe To Control Module Cover

Courtesy of VOLVO CARS OF NORTH AMERICA.

• the large hose from the intake manifold
• the small hoses from the intake manifold
  NOTE: Mark the small hoses before they are disconnected from the intake manifold.
• the small hoses from the hose bracket on the cylinder block (left front)

  Disconnect the connectors from the pressure and temperature sensors on the charge air pipe to the throttle body (TB).

Fig 3: Identifying Clamp On Charge Air Pipe To Throttle Body

Courtesy of VOLVO CARS OF NORTH AMERICA.

Slacken off the clamp on the charge air pipe to the throttle body (TB) at the throttle body (TB).

Push the charge air pipe and cooler out of the way while pulling the fan up.

Fig 4: Identifying Knock Sensors With Screws

Courtesy of VOLVO CARS OF NORTH AMERICA.

• the charge air pipe
• the knock sensors (KS)
• the tie strap on the wiring harness

  Disconnect the connectors.

  Pull the knock sensors (KS) out between the cylinder block and starter motor.