1999 - 2006 (GMT800) Section for all discussion related to the 1999-2006 Chevrolet and GMC trucks.

2500hd knock sensor

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Old Aug 6, 2020 | 7:00 PM
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Default 2500hd knock sensor

I just replaced the knock sensors in my truck and it is still throwing the same code. Suggestion?
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Old Aug 6, 2020 | 11:18 PM
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what is the code? what year and engine?
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Old Aug 7, 2020 | 9:21 AM
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Originally Posted by tech2
what is the code? what year and engine?
P0332, 2004, 6.0 Vortec
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Old Aug 7, 2020 | 9:28 PM
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they have been issues with the knock sensor wiring.
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Old Aug 8, 2020 | 8:23 AM
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When you replace the knock sensor wiring harness, be sure and use the ACDelco harness. Do not use the Dorman or any other harness if you can avoid doing so. For whatever reasons, these engines do not like the aftermarket knock sensor wiring harness'.
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Old Aug 8, 2020 | 8:42 AM
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Thanks. I ordered all AC Delco parts for it. I will take it apart again and replace.
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