chevy_n00b

The other day I have noticed that my truck is not idling correcty. After scanning I got the code P0330.

Can someon please point me to the location of the knock sensor 2 bank 2? I've tried searching this forum / Google but was unable to find any diagrams.

I have 2007 Suburban 2500 HD.

Thanks for any pointers.

73shark

Welcome to the forum.

From what I could find w/ a quick search was that they located underneath the intake manifold.

in2pro

Under the intake is where I have seen them also but when I looked up 2007 Suburban 4wd for Engine Controls and Fuel - 4.8L, 5.3L, 6.0L and 6.2L
it showed them on each side of the engine !?!

in2pro

Sorry the pictures don't cut and paste

Service Information
2007 Chevrolet Chevy Suburban - 4WD | Avalanche, Escalade, Suburban, Tahoe, Yukon (VIN C/K) Service Manual | Document ID: 1708249
--------------------------------------------------------------------------------

Knock Sensor 1 Replacement
Removal Procedure




Lift and support the vehicle. Refer to Lifting and Jacking the Vehicle.
Disconnect the engine wiring harness electrical connector (4) from knock sensor.



Remove the knock sensor bolt (739) and knock sensor (718).
Installation Procedure
Notice: Refer to Fastener Notice in the Preface section.





Position the knock sensor (718) to the engine block and install the knock sensor bolt (739).
Tighten
Tighten the bolt to 25 N·m (18 lb ft).





Connect the engine wiring harness electrical connector (4) to knock sensor.
© 2012 General Motors Corporation. All rights reserved.

4x4van

How similar is this proceedure for the 2006 5.3 Flex Tahoe? I also have the knock sensor 2 bank 2 code.

in2pro

It should be the same as long as its the 5.3L

4x4van

Now I'm confused; are they under the intake manifold, or are they below the exhaust manifold on either side? It appears that maybe the 2006 and earlier are under the manifold, while the 2007 and later are on the sides?

in2pro

It does appear that the 06's are on TOP of the engine...

Timeking

If you have a Gen3 5.3L V8 the knock sensors are under the manifold. If you have a Gen4 (which came out in 2004) they are on each side of the engine. You most like have the Gen4.