Bulletin Information

Bulletin Title: #21-NA-215 - Pop Noise Heard on Heavy Acceleration Only - Multiple DTC’s Set - (Sep 24, 2021)
Bulletin Type: Technical
Applies To: Vehicle DTC Information / Wiring Systems and Power Management / Electrical Component Locator and Harness Routing Views

#21-NA-215 - Pop Noise Heard on Heavy Acceleration Only - Multiple DTC’s Set - (Sep 24, 2021)

Subject:
Pop Noise Heard on Heavy Acceleration Only - Multiple DTC’s Set

Brand:

Model:

Model Year:

VIN:

Engine:

Transmission:

from

to

from

to

Buick

Encore GX

2021

2022

LIH

Chevrolet

Trailblazer (VIN M)

Involved Region or Country

North Ameri...

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Document Tags

Document Title: #21-NA-215 - Pop Noise Heard on Heavy Acceleration Only - Multiple DTC’s Set - (Sep 24, 2021)

engine

ulost

communication

control

module

circuit

ground

tighten

coverage

labor

operation

noise heavy acceleration

ulost communication engine

communication engine control

engine control module

pignition coil control

coil control circuit

system control module