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3GTU2WEJ5EG385736
Vehicle Summary
The 2014 GMC Sierra 1500 Denali is a robust 4WD pickup equipped with a 6.2L V8 engine, offering up to 378 horsepower. Manufactured by General Motors in Silao, Mexico, this crew cab truck ensures safety with airbags in all rows and features such as a stoichiometric gasoline direct injection system. It's designed for heavy-duty tasks with a gross vehicle weight rating between 7,001 - 8,000 lbs. The Sierra Denali also supports both gasoline and ethanol (E85) fuel types.
Complete Specifications
Common Issues for This Vehicle
Brake fluid leak
Hydraulic brake systems can develop leaks, leading to reduced braking performance and potential brake failure.
Brake fade
Overheating of the brake components can cause a temporary loss of braking power, known as brake fade.
Warped brake rotors
Excessive heat or improper torque can cause the brake rotors to warp, leading to vibrations when braking.
Faulty brake master cylinder
The master cylinder can wear out over time, causing a spongy brake pedal or brake failure.
Throttle body issues
Carbon buildup or electronic malfunctions in the throttle body can lead to poor engine performance.
Active fuel management (afm) problems
The AFM system, which deactivates certain cylinders to save fuel, can malfunction, causing rough engine performance or misfires.
Timing chain wear
The timing chain can stretch or wear out over time, leading to timing issues and potential engine damage.
Fuel injector problems
E85 fuel can cause injector clogging or failure over time, affecting engine performance.
Cooling system leaks
Aluminum engines can develop leaks in the cooling system, leading to overheating.
Oil consumption
The L86 engine is known to consume oil, which may require frequent top-offs and monitoring.
Transmission shifting issues
Problems with the transmission control module or hydraulic systems can lead to erratic or harsh shifting.
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