Bulletin Information

Bulletin Title: Unknown
Bulletin Type:
Applies To: Engine Mechanical / Engine Controls / Engine Controls and Fuel

Unknown

Subject:
Engine Replacement After Severe Internal Engine Damage – Replace Intake Manifold
Models:
2021 and Prior GM Passenger Cars and Trucks (including Medium Duty)
Equipped with Gasoline, CNG or LPG Engine
Attention: This bulletin also applies to any of the above models that may be Exp...

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Document Tags

Document Title: Unknown

engine

replacement

severe

internal

damage

intake

manifold

bulletin

genuine

part

service

component

debris

broken

bent

cylinder

head

ports

valve

present

replaced

runner

plenum

complete

piston

catalytic

converter

failures

material

occur

brick

combustion

lower

exhaust

ceramic

view

opening

click

size

plastic

complexity

areas

collect

ultrasonic

internal engine

engine damage

service engine

engine component

debris intake

intake manifolds

broken valves

valves broken

pistons piston

piston cylinder

head damage

view debris

size view

plastic intake

internal view

plenum runner

runner complexity

areas debris

debris collect

internal engine damage

when replacing engine

part service engine

service engine block

internal engine component

engine component debris

cylinder head intake

head intake ports

intake port cylinder

port cylinder head

intake manifold replaced

complex inlet runner

inlet runner plenum

runner plenum configuration

plenum configuration intake

configuration intake manifolds

intake manifolds making

manifolds making thorough

making thorough complete

thorough complete component

complete component cleaning

component cleaning difficult

cleaning difficult impossible

difficult impossible verify

impossible verify complete

broken valves broken

valves broken pistons

broken pistons piston

pistons piston cylinder

piston cylinder head

cylinder head damage

view debris aluminum

debris aluminum intake

aluminum intake manifold

throttle opening click

click size view

size view debris

plastic intake manifold

click size internal

size internal view

internal view plastic

view plastic intake

intake manifold lower

plenum runner complexity

intake manifold cannot

areas debris collect

debris collect areas

collect areas debris