Most Common Car Issues
Selected parameters
Engine Model
L86 - Spark Ignited Direct Injection, Variable Valve Timing, AFM, E85MAX, ALUM
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MOST COMMON PROBLEMS
GMC Yukon 2018
The 2018 GMC Yukon Denali is a robust multipurpose passenger vehicle with a 6.2L V8 engine producing a displacement of 6200 CC. It seats up to 8 passengers and offers advanced safety features like Dynamic Brake Support, Lane Departure Warning, and Blind Spot Warning as standard. With a 10-speed automatic transmission and a top speed of 113 MPH, this 4WD vehicle ensures a smooth and powerful drive. The starting price is $66,200, reflecting its premium build and extensive features.
Spec:
Dynamic Brake Support (DBS)
Standard
Engine Model
L86 - Spark Ignited Direct Injection, Variable Valve Timing, AFM, E85MAX, ALUM
Engine Number of Cylinders
8
Problems:
Dynamic brake support (dbs) issues
Sometimes, the system may not activate as expected due to sensor malfunctions or software glitches.
Engine misfire
This can be caused by faulty spark plugs, ignition coils, or issues with the fuel injectors.
Oil consumption
The L86 engine is known to consume more oil than expected, often due to the Active Fuel Management (AFM) system.
Carbon buildup
Direct injection engines like the L86 can experience carbon buildup on the intake valves, affecting performance.
Timing chain wear
Over time, the timing chain may stretch or wear, leading to engine timing issues.
Fuel system problems
The fuel pump or fuel injectors may fail or become clogged, especially when using E85 fuel.
Cooling system issues
Radiator or water pump failures can lead to overheating.
Variable valve timing (vvt) problems
The VVT system may experience solenoid or actuator failures, causing poor engine performance.
Electrical system malfunctions
Issues with wiring or sensors can lead to various engine and vehicle performance problems.
Exhaust system failures
Problems with the catalytic converter or exhaust manifold can lead to reduced efficiency and performance.