Source reference 10176326
Manufacturer communication — 2006 GMC YUKON DENALI XL
Relation to the target vehicle
- The source's vehicle field includes the trim.
- Model year
- Match 2006 — Source vehicle field
- Model
- Match YUKON DENALI XL — Source vehicle field
- Trim
- Match Denali — Source vehicle field
What the manufacturer’s document says
PIP5628B ・ fault and correction ・ for GM vehicles in general
Applies to
All models, model years 2000 - 2020.
the passage
All All 2000 - 2020 All All All All
Fault
The vehicle comes in with a misfire and DTCs P0300 - P0308 and/or P050D set.
the passage
A vehicle may come in with a misÕre and DTCs P0300 - P0308 and/or P050D set.
Finding the cause
Steps to confirm (in the document’s order)
If the misfires cannot be felt, remove the accessory drive belt if possible and evaluate.
the passage
Can the misÕres be felt? If not felt remove the accessory drive belt if possible and evaluate.
Do a fuel injector balance test and record the results.
the passage
Fuel injector balance test (record the results)
Check for a possible fuel quality issue, especially with a cold engine hard start and/or a misfire on all cylinders.
the passage
Check for a possible fuel quality issue (especially if there is an issue of cold engine hard start and/ or an engine misÕre on all cylinders).
Check the ignition supply voltage to the ignition module/coil assemblies and also to the fuel injectors.
the passage
Check the supply ignition voltage to the ignition module/coil assemblies, and also to the fuel injectors
Complete a compression test, static and running, and record the results.
the passage
Compression test, static and running (record the results)
Note the fuel trims (rich or lean).
the passage
Note the fuel trims. (rich or lean)
Inspect the spark plugs for anything abnormal.
the passage
Spark plug inspection ( inspect for anything abnormal)
Swap components from the misfiring cylinder to known good locations.
the passage
Did you swap components from the misÕring cylinder to known good locations?
On V8/V6 push rod engines, inspect for and verify rocker arm movement.
the passage
Inspect for and verify rocker arm movement (V8/V6 push rod engines)
Capture a GDS2 session log of the engine misfire.
the passage
Be sure to capture a GDS2 session log of the engine misÕre.
Compiled by reading the full text of the document; each point stands on the passage shown. Check the document itself, linked below, before working on a vehicle.
Stated content
Communication summary
本予備情報は、エンジンミスフイアおよびDTCコードP0300～P0308および/またはP050Dを伴う車両がご来店された場合、診断補助のためTACに提供する必要がある情報を周知するものです。 Machine translation (unreviewed)
This Preliminary information communicates information that will need to be provided to TAC to aid in diagnosing if a vehicle comes in with misfire and DTC Codes P0300 - P0308 and/or P050D
Go to this passage in the original
Source
- Source
- NHTSA Manufacturer Communications
- Source reference
- 10176326
- Received by source
- 2020-06-15
- Incident date
- Unknown
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