GM Service Manual Online
For 1990-2009 cars only
Makes
🢒
Chevrolet
🢒
2009
🢒
TrailBlazer - 2WD
🢒
Engine
🢒
Engine Controls and Fuel - 4.8L, 5.3L, 6.0L, 6.2L, or 7.0L
🢒 Knock Sensor Replacement
Knock Sensor Replacement Left Side
Removal Procedure
Remove the mounting bolt for the knock sensor 1.
Disconnect the electrical connector of the knock sensor from the engine harness (3).
Remove the knock sensor (2) from the engine block (4).
Installation Procedure
Reconnect the engine harness (3) and the knock sensor (2) electrical connectors.
Position the knock sensor 2 on the engine block (4).
Install the mounting bolt (1) for the knock sensor 2.
Caution:
Refer to
Fastener Caution
in the Preface section.
Tighten the knock sensor mounting bolt (1) to
20 N·m (15 lb ft)
.
Knock Sensor Replacement Right Side
Removal Procedure
Disconnect the electrical connector (3) from the knock sensor (2).
Remove the knock sensor bolt (1).
Remove the knock sensor (2) from the engine block.
Installation Procedure
Position the knock sensor (2) on the engine block.
Caution:
Refer to
Fastener Caution
in the Preface section.
Install the knock sensor bolt (1) and tighten to
20 N·m (15 lb ft)
.
Connect the electrical connector (3) to the knock sensor (2).