Service bulletin 18NA246
A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.
| Type | Service bulletin |
|---|---|
| NHTSA id | 10158772 |
| Published by NHTSA | 2019-04-22 |
| Manufacturer's number | 18NA246 |
| Manufacturer's date | 2019-02-14 |
| NHTSA component | ENGINE; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CRANKCASE (PCV) |
NHTSA's summary
This technical bulletin provides a procedure to change the oil if excessive fuel has been found in the oil and the cause of the DTC set. Also replacing the PCV valve in camshaft cover and updating the ECM with latest software.
The document
The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.
Components
Engine, Exhaust and emissions, Crankcase ventilation (PCV)
| BUICK ENVISION | 2016, 2017, 2018, 2019 |
|---|---|
| BUICK REGAL | 2014, 2015, 2016, 2017, 2018, 2019 |
| CADILLAC ATS | 2013, 2014, 2015, 2016, 2017, 2018, 2019 |
| CADILLAC CT6 | 2016 |
| CADILLAC CT6 PLUG-IN HYBRID | 2017, 2018 (the catalog's model; the bulletin names a series or trim of it) |
| CADILLAC CTS | 2014, 2015, 2016, 2017, 2018, 2019 |
| CHEVROLET CAMARO | 2016, 2017, 2018, 2019 |
| CHEVROLET EQUINOX | 2018, 2019 |
| CHEVROLET MALIBU | 2013, 2014, 2015, 2016, 2017, 2018, 2019 |
| CHEVROLET TRAVERSE | 2018, 2019 |
| GMC TERRAIN | 2017, 2018, 2019 |
Listing a model year does not mean every vehicle of it is concerned: the document says which.
| PIP5503B | 2020-02-10. Service bulletin. This Preliminary information communicates to the dealer additional information on checking for the engne crankcase being overfull on oil causing an engine vibration concern. The technician is advised to inspect for contaminnants and adjust the engine oil level as needed. |
|---|---|
| 18NA246 | 2019-07-01. Service bulletin. This technical bulletin provides a procedure to change the oil if excessive fuel has been found in the oil and the cause of the DTC set. Also replacing the PCV valve in camshaft cover and updating the ECM with latest software. |
| 19NA080 | 2019-05-28. Service bulletin. This informational bulletin provides information to the tech to discard the PCV drain tube when working on the lower area of the engine. |
| 18NA246 | 2019-04-08. Service bulletin. This technical bulletin provides a procedure to change the oil if excessive fuel has been found in the oil and the cause of the DTC set. Also replacing the PCV valve in camshaft cover and updating the ECM with latest software. |
| PIP5598 | 2018-11-13. Service bulletin. This Preliminary information communicates the possibility of a crank no start or extended crank condition due to exhaust cam reluctor being out of position. |
| PIP5421F | 2018-11-13. Service bulletin. This Preliminary Information communication provides information to the technician about vehicles that may be running rough with a Malfunction Indicator Lamp on. Technician may find Diagnostic Trouble Code P0300 set. Technician will need to perform an Engine Compression Testing in Service Information. If excessive leakage to the crankcase is isolated, check piston and cylinder wall condition. Technician should perform the repair per the level of damage. If the cylinder wall surface has not been compromised, only piston replacement is required. |
| PIP3423P | 2018-09-17. Service bulletin. This Preliminary Information communication provides information to the technician that Diagnostic Trouble Codes P0016, P0017, P0018, P0019, P0008 or P0009 may be set. Technician will need to inspect for loose timing chains or tensioners. If after following Service Information diagnostics the root cause is not found inspect the reluctor for the crankshaft sensor. If the reluctor has moved then replace crankshaft. |
| PIP5421D | 2018-05-21. Service bulletin. This Preliminary Information communication provides information to the technician about vehicles that may be running rough with a Malfunction Indicator Lamp on. Technician may find Diagnostic Trouble Code P0300 set. Technician will need to perform an Engine Compression Testing in Service Information. If excessive leakage to the crankcase is isolated, check piston and cylinder wall condition. Technician should perform the repair per the level of damage. If the cylinder wall surface has not been compromised, only piston replacement is required. |
| PIP5503 | 2017-10-04. Service bulletin. This Preliminary information communicates to the dealer additional information on checking for the engne crankcase being overfull on oil causing an engine vibration concern. The technician is advised to inspect for contaminnants and adjust the engine oil level as needed. |
| PIP5421B | 2017-08-15. Service bulletin. This Preliminary Information communication provides information to the technician about vehicles that may be running rough with a Malfunction Indicator Lamp on. Technician may find Diagnostic Trouble Code P0300 set. Technician will need to perform an Engine Compression Testing in Service Information. If excessive leakage to the crankcase is isolated, check piston and cylinder wall condition. Technician should perform the repair per the level of damage. If the cylinder wall surface has not been compromised, only piston replacement is required. |