← Look into the faults of the GMC Yukon XL
Trouble code
P0327: possible causes and documented repairs — 2000–2006 GMC Yukon XL
No record of the 2000–2006 GMC Yukon XL states trouble code P0327. What follows is what the technical documents say. The technical documents say how to deal with 1 of its possible causes. They are listed by the number of matching records, most first.
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Causes the technical documents say how to deal with (1)
Rear bank knock sensor corrosion from water intrusion (P0332)
No matching record (stated by the technical documents)
Customers may report mild to severe engine ping (spark knock), usually worse during acceleration, and/or an illuminated MIL.
The technician may find DTC P0332 set.
How to tell
What to do
- If P0327 and P0332 set at the same time, inspect for poor connections at the two-wire knock sensor harness located at the left rear side of the intake manifold near the top, just under the cover.
- Check the resistance of the knock sensors including the harness before reinstalling the intake manifold.
- Replace the rear bank knock sensor and build an RTV dam around the sensor to divert water away from it.
Related symptoms, trouble codes and warning displays
What the technical documents state together with the faults above.
- Trouble code
- P0332
- Warning display
- Check engine / Service Engine Soon
Put together by FaultCrate from public records and technical documents. The cause and the repair are for the workshop to decide with the vehicle in front of it. Counts are records, not failure rates.

