Most Common Car Issues
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MOST COMMON PROBLEMS
CHEVROLET Avalanche 2012
The 2012 Chevrolet Avalanche LS is a versatile Sport Utility Truck (SUT) equipped with a 5.3L V8 engine and 4WD. It supports both gasoline and ethanol (E85) fuel types, offering flexibility in fuel choices. Safety features include curtain airbags for all rows and a direct Tire Pressure Monitoring System (TPMS). This model is manufactured by General Motors in Silao, Guanajuato, Mexico.
Spec:
Engine Model
LC9 - Flex Fuel (GAS/ALC), Aluminium Cylinder, Deactivation
Engine Number of Cylinders
8
Problems:
Oil consumption
The LC9 engine is known to consume oil more rapidly than normal, which can lead to low oil levels if not monitored frequently.
Active fuel management (afm) issues
The deactivation system in the LC9 can sometimes fail, leading to issues with cylinder deactivation and reactivation, causing poor performance and increased fuel consumption.
Lifter failure
The lifters in the LC9 engine can sometimes fail, especially in models equipped with AFM, leading to misfires, noise, and potential engine damage.
Timing chain wear
Premature wear of the timing chain can occur, which can lead to engine misfires, rough idling, and eventually severe engine damage if not addressed.
Intake manifold leaks
The intake manifold gaskets can fail, causing vacuum leaks, poor engine performance, and potential engine damage if not fixed.
Fuel injector problems
Fuel injectors can become clogged or fail, leading to poor fuel economy, misfires, and rough engine performance.
Carbon build-up
Due to direct injection, the LC9 engine can suffer from carbon build-up on intake valves, which can cause rough idling, misfires, and reduced performance.
Throttle body issues
The throttle body can become dirty or malfunction, leading to poor throttle response, stalling, and engine hesitation.