saab Workshop Repair Guides

Saab Workshop Service and Repair Manuals

Tune-up and Engine Performance Checks > < Knock Sensor|Specifications|Page 3436
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Knock Sensor: Service and Repair

Knock sensor 

 
To remove

1  Unplug the knock sensor's electrical connector.

2  Remove the knock sensor from the engine block.

 
 
To fit 

1  Wipe the mating surface dry.

2  Bolt the knock sensor to the engine block.

Important:  The correct tightening torque is extremely important in order for the control module to receive the expected signal strength.

Tightening torque

Saab APC (M88) 20 Nm (14.7 lbf ft)
Saab DI/APC 

13 ± 2 Nm (9.6 ± 1.5 lbf ft)

3  Connect the knock sensor's electric lead to the car's wiring harness.

Tune-up and Engine Performance Checks > < Knock Sensor|Specifications|Page 3436