2007 GMC Sierra 2500 HD

The 2007 GMC Sierra 2500 HD is a heavy-duty pickup truck known for its towing and hauling capabilities. Engine options include the 6.0L Vortec V8 (353 hp, 373 lb-ft torque), the 8.1L Vortec V8 (330 hp, 450 lb-ft torque), and the 6.6L Duramax Diesel V8 (360 hp, 650 lb-ft torque). Transmission options consist of a 6-speed manual and a 6-speed Allison automatic transmission. Owners often appreciate the Sierra 2500 HD for its robust performance and durability, but common complaints include issues with the drivetrain, electrical system, and some aspects of interior durability.

Engine

6.0L Vortec V8

• Oil Consumption
  • Description/Symptoms: Excessive oil consumption, requiring frequent top-offs between oil changes. Often noticed with higher mileage vehicles.
  • Solution: Monitoring oil levels regularly. Potential repairs could include replacing valve stem seals, piston rings, or a complete engine rebuild depending on the severity.
  • Estimated Cost to Fix: $500 - $4000+
  • Recalls: None Found
• Exhaust Manifold Bolts Breaking
  • Description/Symptoms: Ticking noise from the engine, especially when cold, indicating an exhaust leak. Broken bolts are a common cause.
  • Solution: Replacing the broken exhaust manifold bolts. In some cases, the exhaust manifold may also need to be replaced if it is warped or damaged.
  • Estimated Cost to Fix: $300 - $800
  • Recalls: None Found

6.6L Duramax Diesel V8 (LBZ)

• Fuel Injector Failure
  • Description/Symptoms: Rough running, misfires, decreased fuel economy, and black smoke from the exhaust. Diagnostic codes related to injector performance.
  • Solution: Replacing the faulty fuel injector(s). It’s often recommended to replace all injectors at once to ensure balanced performance.
  • Estimated Cost to Fix: $800 - $4000+
  • Recalls: None Found
• Glow Plug Issues
  • Description/Symptoms: Hard starting, especially in cold weather, and excessive white smoke upon startup.
  • Solution: Replacing the faulty glow plug(s) and, potentially, the glow plug control module.
  • Estimated Cost to Fix: $200 - $600
  • Recalls: None Found
• Turbocharger Vane Position Sensor Failure
  • Description/Symptoms: Loss of power, especially during acceleration, along with diagnostic trouble codes related to the turbocharger.
  • Solution: Replacing the turbocharger vane position sensor. In some cases, the entire turbocharger may need to be replaced.
  • Estimated Cost to Fix: $300 - $1500+
  • Recalls: None Found

8.1L Vortec V8

• No Issues Found

Transmission

Allison 1000 6-Speed Automatic

• Torque Converter Failure
  • Description/Symptoms: Shuddering during gear shifts, especially under load, and potential slipping or complete loss of drive.
  • Solution: Replacing the torque converter. In some cases, transmission damage may also require a rebuild.
  • Estimated Cost to Fix: $1000 - $4000+
  • Recalls: None Found
• Internal Wear/Clutch Pack Failure
  • Description/Symptoms: Slipping between gears, harsh or delayed shifting, and potential loss of certain gears.
  • Solution: Transmission rebuild or replacement.
  • Estimated Cost to Fix: $2500 - $6000+
  • Recalls: None Found

Manual Transmission

• No Issues Found

Suspension

• Front End Clunking/Popping
  • Description/Symptoms: Clunking or popping noises coming from the front suspension, especially when going over bumps or turning.
  • Solution: Inspect and replace worn ball joints, tie rod ends, and/or sway bar end links.
  • Estimated Cost to Fix: $200 - $800
  • Recalls: None Found

Electrical

• Instrument Cluster Issues
  • Description/Symptoms: Intermittent or complete failure of gauges (speedometer, tachometer, fuel gauge, etc.), sometimes along with warning lights.
  • Solution: Repairing or replacing the instrument cluster.
  • Estimated Cost to Fix: $300 - $800
  • Recalls: None Found
• Body Control Module (BCM) Problems
  • Description/Symptoms: Intermittent electrical issues, such as power windows not working, door locks malfunctioning, and lighting problems.
  • Solution: Diagnosing and repairing or replacing the BCM.
  • Estimated Cost to Fix: $200 - $1000+
  • Recalls: None Found

Exterior

• Rust on Rocker Panels and Cab Corners
  • Description/Symptoms: Rust forming on the lower rocker panels and cab corners.
  • Solution: Removing the rust, patching the affected areas, and repainting.
  • Estimated Cost to Fix: $500 - $2000+
  • Recalls: None Found

Interior

• Dashboard Cracking
  • Description/Symptoms: Cracking on the dashboard, especially in warmer climates.
  • Solution: Replacing the dashboard or installing a dashboard cover.
  • Estimated Cost to Fix: $200 - $1500+
  • Recalls: None Found

Summary

The 2007 GMC Sierra 2500 HD, while a capable truck, has several common issues. Engine issues range from relatively inexpensive fixes like exhaust manifold bolts to potentially costly repairs like fuel injector replacement (Duramax) or addressing oil consumption (6.0L Vortec). Transmission problems, especially with the Allison automatic, can also be a significant expense. Electrical issues and rust are also frequently reported. Overall, potential buyers should be aware of these common issues and thoroughly inspect the vehicle before purchasing and budget accordingly for the repairs.