2014 GMC Sierra 3500 HD

2014 GMC Sierra 3500 HD

The 2014 GMC Sierra 3500 HD is a heavy-duty pickup truck that is available with a variety of engine and transmission options. Some of the most popular engine options include the 6.6L Duramax diesel V8, which produces 397 horsepower and 765 lb-ft of torque, and the 6.0L Vortec V8 gasoline engine, which produces 360 horsepower and 380 lb-ft of torque. Transmission options include a 6-speed automatic transmission and an 8-speed automatic transmission.

The Sierra 3500 HD is known for its powerful engines, durable construction, and spacious interior. However, it has also been known to have some issues.

Engine

6.6L Duramax Diesel V8

• Fuel Injector Failure: The fuel injectors can fail, causing the engine to run poorly or stall. Symptoms include: black smoke coming from the exhaust, decreased engine power, and a rough idle. The fix is to replace the fuel injectors. Estimated Cost to Fix: $1,000 - $2,000+
• Turbocharger Failure: The turbocharger can fail, causing the engine to lose power. Symptoms include: decreased engine power, black smoke coming from the exhaust, and a whistling sound. The fix is to replace the turbocharger. Estimated Cost to Fix: $2,000 - $3,000+ Recalls: NHTSA Recall Number 14V510000, NHTSA Recall Number 15V171000

6.0L Vortec V8 Gasoline Engine

• Intake Manifold Gasket Failure: The intake manifold gasket can fail, causing the engine to run poorly or stall. Symptoms include: rough idle, decreased engine power, and a vacuum leak. The fix is to replace the intake manifold gasket. Estimated Cost to Fix: $500 - $1,000+
• Spark Plug Failure: The spark plugs can fail, causing the engine to misfire. Symptoms include: rough idle, decreased engine power, and a check engine light. The fix is to replace the spark plugs. Estimated Cost to Fix: $200 - $400+

Transmission

6-Speed Automatic Transmission

• Transmission Slipping: The transmission can slip, causing the vehicle to lose power or jerk when shifting gears. Symptoms include: difficulty shifting gears, slipping gears, and a check engine light. The fix is to rebuild or replace the transmission. Estimated Cost to Fix: $2,000 - $4,000+

8-Speed Automatic Transmission

• Valve Body Failure: The valve body can fail, causing the transmission to shift erratically or not shift at all. Symptoms include: rough shifting, slipping gears, and a check engine light. The fix is to replace the valve body. Estimated Cost to Fix: $1,500 - $2,500+

Suspension

• Leaf Spring Failure: The leaf springs can fail, causing the rear of the vehicle to sag. Symptoms include: uneven ride height, decreased handling, and a loud clunking noise. The fix is to replace the leaf springs. Estimated Cost to Fix: $500 - $1,000+ per side
• Shock Absorber Failure: The shock absorbers can fail, causing the ride to be rough and the vehicle to bounce excessively. Symptoms include: rough ride, decreased handling, and a clunking noise. The fix is to replace the shock absorbers. Estimated Cost to Fix: $200 - $400+ per shock

Electrical

• Battery Drain: The battery can drain quickly, even when the vehicle is turned off. Symptoms include: difficulty starting the vehicle, dim headlights, and a dead battery. The fix is to find and fix the source of the drain. Estimated Cost to Fix: Varies depending on the source of the drain
• Alternator Failure: The alternator can fail, causing the battery to not charge. Symptoms include: dim headlights, difficulty starting the vehicle, and a check engine light. The fix is to replace the alternator. Estimated Cost to Fix: $500 - $1,000+

Exterior

• Body Panel Rust: The body panels can rust, especially in areas that are exposed to salt or moisture. Estimated Cost to Fix: Varies depending on the severity of the rust
• Tailgate Failure: The tailgate can fail to open or close properly. Estimated Cost to Fix: $500 - $1,000+

Interior

• Power Window Failure: The power windows can fail to operate properly. Estimated Cost to Fix: $200 - $400+ per window
• Door Lock Failure: The door locks can fail to operate properly. Estimated Cost to Fix: $200 - $400+ per door

Summary

The 2014 GMC Sierra 3500 HD is known for its powerful engines, durable construction, and spacious interior. However, it has also been known to have some issues, including engine problems, transmission problems, and suspension problems. The severity of the issues can vary depending on the specific problem and the mileage of the vehicle. The cost of repairs can also vary depending on the severity of the issue and the location of the repair.