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NHTSA ID Number: 10193444
Manufacturer Communication Number: PIP5802
Summary
This Preliminary information communicates diagnostic assistance for DTC’s P219A and P219B.
52 Affected Products
Vehicles
| MAKE | MODEL | YEAR |
| BUICK | LACROSSE | 2017-2019 |
| BUICK | REGAL | 2018-2020 |
| CADILLAC | ATS | 2016-2019 |
| CADILLAC | CT5 | 2020-2021 |
| CADILLAC | CT6 | 2016-2020 |
| CADILLAC | CTS | 2016-2019 |
| CADILLAC | XT5 | 2017-2021 |
| CADILLAC | XT6 | 2020-2021 |
| CHEVROLET | BLAZER | 2019-2021 |
| CHEVROLET | CAMARO | 2016-2021 |
| CHEVROLET | COLORADO | 2017-2021 |
| GMC | ACADIA | 2017-2021 |
| GMC | CANYON | 2017-2021 |
Condition
A customer may come in with an SES / CEL on and no other drivability concerns. The technician may find a DTC P219A or P219B set in the ECM.
If other drivability concerns exist, follow SI diagnostics for the concern.
Cause
After performing normal diagnostics for these codes per SI if no cause is found then there may be an AFM cylinder rocker arm not opening the valve due to
1) A broken locking pin shelf or
2) A stuck locking pin (see pictures below)
Correction:
To test for this concern, remove the corresponding camshaft cover and turn the engine over by hand while watching the AFM cylinder (2 or 5) rockers (SRFF’s) and valves to ensure the rocker arm opens the valves and not just moves with the camshaft.
If this is the case and either valve does not open on the intake or exhaust, this would cause the imbalance and set the code.
At that point we recommend replacing both of the rockers( SRFF’s) on that camshaft either intake or exhaust and then reevaluate the vehicle.
SEOCONTENT-START
Bulletin No.: PIP5802
Published date: 04/9/2021
Preliminary Information
PIP5802 Diagnostic Tip for DTCs P219A or P219B Setting With No Other Drivability Symptoms
Models
Brand:
Model:
Model Years:
2017 – 2019
2018 – 2020
2016 – 2019
2020 – 2021
VIN:
from to
All All
All All
All All
All All
3.6 LGX
3.6 LGX
3.6 LGX
3.0 LGY
All All All All
Transmissions:
Cadillac Cadillac Cadillac Cadillac Chevrolet Chevrolet Chevrolet GMC GMC
CT6 CTS XT5 XT6
Blazer Camaro Colorado Acadia Canyon
2016 – 2020
2016 – 2019
2017 – 2021
2020 – 2021
2019 – 2021
2016 – 2021
2017 – 2021
2017 – 2021
2017 – 2021
All All All All All All All All All
All All All All All All All All All
3.0 LGW, 3.6 LGX
3.6 LGX
3.6 LGX
3.6 LGX
3.6 LGX
3.6 LGX
3.6 LGZ
3.6 LGX
3.6 LGZ
All All All All All All All All All
Involved Region or Country
Condition Cause
North America
A customer may come in with an SES / CEL on and no other drivability concerns. The technician may
find a DTC P219A or P219B set in the ECM.
If other drivability concerns exist, follow SI diagnostics for the concern.
After performing normal diagnostics for these codes per SI if no cause is found then there may be
an AFM cylinder rocker arm not opening the valve due to
1) A broken locking pin shelf or
2) A stuck locking pin (see pictures below)
Correction:
To test for this concern, remove the corresponding camshaft cover and turn the engine over by hand
while watching the AFM cylinder (2 or 5) rockers (SRFF’s) and valves to ensure the rocker arm opens
the valves and not just moves with the camshaft.
If this is the case and either valve does not open on the intake or exhaust, this would cause the
imbalance and set the code.
At that point we recommend replacing both of the rockers( SRFF’s) on that camshaft either intake or
exhaust and then reevaluate the vehicle.
NOTE: We have submitted for this information to be included in SI diagnostics for these codes and
this PI will be edited, deleted, or changed into a bulletin as the need arises.
Warranty Information
For vehicles repaired under the Powertrain coverage, use the labor operation listed in the labor
time guide for the actual repair made.
Reference the Applicable Warranties section of Investigate Vehicle History (IVH) for coverage
information.
Version History
Version 1
Modified 04/09/2021 – Created on.
SEOCONTENT-END
1 Associated Document
Manufacturer Communications
Bulletin No.: PIP5802
Published date: 04/9/2021
https://www.nhtsa.gov/recalls?nhtsaId=10193444
MC-10193444-9999.pdf 228.562KB
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