PIP5493G
Service Bulletin Details
Public Details for: PIP5493G
This preliminary information communicates diagnostic tips for misfires on active fuel management cylinders and engineering investigations into cylinder 6 misfire on xt5 and cylinder 4 misfire on lacrosse both of which are 2017. Changes to p
Models from 2019
| 2019 BUICK LACROSSE |
| 2019 CADILLAC ATS |
| 2019 CADILLAC CT6 |
| 2019 CADILLAC XT5 |
| 2019 CHEVROLET CAMARO |
| 2019 CHEVROLET COLORADO |
| 2019 GMC ACADIA |
| 2019 GMC CANYON |
Models from 2018
| 2018 BUICK LACROSSE |
| 2018 CADILLAC ATS |
| 2018 CADILLAC CT6 |
| 2018 CADILLAC CTS |
| 2018 CADILLAC XT5 |
| 2018 CHEVROLET CAMARO |
| 2018 CHEVROLET COLORADO |
| 2018 GMC ACADIA |
| 2018 GMC CANYON |
Models from 2017
| 2017 BUICK LACROSSE |
| 2017 CADILLAC ATS |
| 2017 CADILLAC CT6 |
| 2017 CADILLAC CTS |
| 2017 CADILLAC XT5 |
| 2017 CHEVROLET CAMARO |
| 2017 CHEVROLET COLORADO |
| 2017 GMC ACADIA |
| 2017 GMC CANYON |
Bulletin No.: PIP5493G Published date: 08/9/2018 Preliminary Information PIP5493G Mis re with DTC’s P0300, P0301-P0306 Models Brand: Model: Model Years: VIN: from Engine: to Transmissions: Buick LaCrosse 2017 - 2019 All All 3.6 LGX All Cadillac ATS 2016 - 2019 All All 3.6 LGX All Cadillac CT6 2016 - 2019 All All 3.0 LGW, 3.6 LGX All Cadillac CTS 2016 - 2019 All All 3.6 LGX All Cadillac XT5 2017 - 2019 All All 3.6 LGX All Chevrolet Camaro 2016 - 2019 All All 3.6 LGX All Chevrolet Colorado 2017 - 2019 All All 3.6 LGZ All GMC Acadia 2017 - 2019 All All 3.6 LGX All GMC Canyon 2017 - 2019 All All 3.6 LGZ All Supersession Statement This PI was superseded to update model years. Please discard PIP5493F. Involved Region or Country North America Condition Some customers may comment on a MIL light illuminated. During diagnosis a technician may nd DTC P0300 (Engine Mis re Detected) and/or a speci c cylinder DTC such as P0300, P0301-P0306 This code may be active or stored in history. Cause Multiple causes depending on vehicle con guration. Correction: On 2106 and 2017 vehicles, verify the vehicle has the latest ECM calibration. NOTE: Do not re ash 2018 vehicles for this condition. If a new calibration is available relating to this concern, reprogram the ECM and reevaluate the condition. If code(s) do not return and no condition is present then return vehicle to customer. If vehicle has the latest ECM calibration refer below for next steps. 1) Perform normal eSI diagnostics testing all spark and fuel components for issues. (Coil grounds and wiring, injector concerns, spark plugs, etc) If no concerns are found following ESI then follow this PI for repair. 2) Inspect for broken or dislodged SRFFs (rockers arms) per the pictures below. While inspecting the rockers it will be necessary to rotate the engine over by hand to ensure that the rockers are opening the valves. NOTE: Camshaft carrier assembly removal may be necessary to fully inspect the rockers and SRFF's. If any one of the SRFF’s are damaged it will be necessary to replace all four on the a ected cylinder. 3) Remove the camshaft actuators on the bank that is mis ring and inspect the end of the camshafts and the pin in the actuators for being bent example shown below. 4) If any broken parts are found during inspection replace all damaged parts. It will also be necessary to replace the AFM OCV in the camshaft cover for both banks. 5) If vehicle was built before November 1, 2017 replace the e ected exhaust shla's/ lifters on the cylinder that was mis ring with current part # in EPC. NOTE: This PI will be updated or changed to a bulletin when parts breakpoint dates become available. Warranty Information For vehicles repaired under warranty, use the current labor time for the actual repair made. Version History Version 8 Modi ed Created on 04/24/2017 6/7/2017 Update to add Model Year in Correction. 6/29/2017 Update to add further direction with picture and correct engine description. 8/02/2017 Update to add new directions and administrative details. 10/30/2017 update to add model year and directions and pictures. 1/17/2018 Update to change direction on Shla replacement and end administrative details. 3/12/2018 Update to revise direction on calibration update. 8/7/2019 Update to add 2019 MY © 2018 General Motors. All Rights Reserved.