NHTSA ID Number: 10202401
Manufacturer Communication Number: PIP5806D
Summary
This preliminary information bulletin instructs to technicians to check the trigger wheel for interfering with the timing chain, and adding a shim to the camshaft position sensor.
Condition:
Some customers may experience an intermittent extended crank or intermittent crank/no start, and may find DTC P0341 set. The vehicle will crank until it times out. The vehicle will start on the second attempt. The StopStart system is not affected by this condition.
Cause:
This may be due to a corrupt signal from camshaft position sensor to ECM.
Correction:
Remove the camshaft position sensor and use a borescope to inspect the camshaft trigger wheel for coming in contact with the timing chain. If the trigger wheel is coming into contact with the timing chain at any point, it will be necessary to replace the trigger wheel.
SEOCONTENT-START
Bulletin No.: PIP5806D Published date: N/A
Preliminary Information
PIP5806D Intermittent Extended Crank No Start And A Possible DTC P0341 Set
Models
Brand:
Chevrolet GMC
Model:
Silverado Sierra
Model Years:
2020 – 2021
2020 – 2021
VIN:
from to
All All
All All
Engine:
LM2 LM2
All All
Transmissions:
Involved Region or Country:
Condition:
Cause:
North America
Some customers may experience an intermittent extended crank or intermittent crank/no start, and
may find DTC P0341 set. The vehicle will crank until it times out. The vehicle will start on the
second attempt. The StopStart system is not affected by this condition.
This may be due to a corrupt signal from camshaft position sensor to ECM.
Correction:
Remove the camshaft position sensor and use a borescope to inspect the camshaft trigger wheel for
coming
in contact with the timing chain. If the trigger wheel is coming into contact with the timing
chain at any point, it will be necessary to replace the trigger wheel.
It is necessary to roll the engine over by hand (up to two revolutions) to inspect each wheel
segment. See the picture below:
If the camshaft trigger wheel is not coming into contact with the timing chain at any point,
Install a .5mm shim to the camshaft position sensor, P/N 12565102.
Below are reference pictures of a good trigger wheel and chain:
1. Camshaft Position Reluctor Wheel
2. Camshaft Position Sensor
1. Camshaft Position Reluctor Wheel
Warranty Information
For vehicles repaired under the Bumper to Bumper and Emissions (E) coverage, use the following
labor operation. Reference the Applicable Warranties section of Investigate Vehicle History (IVH)
for coverage information.
Labor Operation Description
Labor Time
4088148 Camshaft Exciter Wheel Inspection and .5mm Camshaft Sensor shim installation
3.1 Hrs.
*This is a unique Labor Operation for Bulletin use only.
Version History
Version 5
Modified 05/24/2021 – Created on.
06/18/2021 – Modified to include checking for debris on the cam position sensor.
08/06/2021 – Modified to include checking for chain interference and adding
Camshaft position sensor shim and graphics.
08/13/2021 – Modified to update the labor code and description 09/21/2021 – Modified to remove the
SUVs
SEOCONTENT-END
12 Affected Products
Vehicles
| MAKE | MODEL | YEAR |
| CHEVROLET | SILVERADO 1500 | 2020-2021 |
| CHEVROLET | SILVERADO 2500 | 2020-2021 |
| CHEVROLET | SILVERADO 3500 | 2020-2021 |
| GMC | SIERRA 1500 | 2020-2021 |
| GMC | SIERRA 2500 | 2020-2021 |
| GMC | SIERRA 3500 | 2020-2021 |
1 Associated Document
Manufacturer Communications
Bulletin No.: PIP5806D
Published date: N/A
MC-10202401-9999.pdf 966.544KB
NHTSA ID Number: 10201311
Manufacturer Communication Number: PIP5806C
Summary
This preliminary information bulletin instructs to technicians to check the trigger wheel for interfering with the timing chain, and adding a shim to the camshaft position sensor.
1 Associated Document
Manufacturer Communications
Bulletin No.: PIP5806C
Published date: 08/16/2021
MC-10201311-9999.pdf 965.945KB
NHTSA ID Number: 10201306
Manufacturer Communication Number: PIP5806B
Summary
This preliminary information bulletin instructs to technicians to check the trigger wheel for interfering with the timing chain, and adding a shim to the camshaft position sensor.
1 Associated Document
Manufacturer Communications
Bulletin No.: PIP5806B
Published date: N/A
MC-10201306-9999.pdf 965.922KB
NHTSA ID Number: 10201289
Manufacturer Communication Number: PIP5806A
Summary
This preliminary information bulletin instructs to technicians to use the Picoscope or a make physical inspection to check for debris on the cam position sensor and to check for a bent target wheel on the camshaft.
1 Associated Document
Manufacturer Communications
Bulletin No.: PIP5806A
Published date: N/A
MC-10201289-9999.pdf 592.399KB
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