GMC TSB #PIP5423A
2018 GMC Sierra 1500
Affected Component: ENGINE (PWS)
- Summary
- This Preliminary Information communication provides information to the technician about vehicles that may have a Service Engine Soon Malfunction Indicator Lamp on. Technician may find Diagnostic Trouble Codes P0106 and P0506. Technician will inspect for a broken valve spring and replace as needed. Â