2007 GMC Sierra 1500 HD Classic

Introduction

The 2007 GMC Sierra 1500 HD Classic is a full-size pickup truck available with three engine options: a 4.8L V8, a 5.3L V8, and a 6.0L V8. Transmission options include a 4-speed automatic, a 5-speed manual, and a 6-speed automatic.

The Sierra 1500 HD Classic is praised for its powerful engines, rugged capability, and spacious interior. However, it also has some drawbacks, such as below-average fuel economy and a stiff ride.

Engine

4.8L V8

• Intake Manifold Gasket Leak:
  • Description/Symptoms: Coolant leak, loss of power, overheating
  • Solution: Replace intake manifold gaskets
  • Estimated Cost to Fix: $300 - $600+
  • Recalls: None Found

5.3L V8

• AFM (Active Fuel Management) Lifter Failure:
  • Description/Symptoms: Tapping noises, reduced engine power, engine misfires
  • Solution: Replace lifters and camshaft
  • Estimated Cost to Fix: $1,500 - $3,000+
  • Recalls: None Found

6.0L V8

• Intake Valve Failure:
  • Description/Symptoms: Loss of compression, rough idle, engine misfires
  • Solution: Replace intake valves
  • Estimated Cost to Fix: $2,500 - $4,000+
  • Recalls: None Found

Transmission

4-Speed Automatic

• Slipping Gears:
  • Description/Symptoms: Difficulty shifting gears, loss of power
  • Solution: Overhaul or replace transmission
  • Estimated Cost to Fix: $1,500 - $3,000+
  • Recalls: None Found

5-Speed Manual

• Grinding Gears:
  • Description/Symptoms: Difficulty shifting gears, gear grinding noises
  • Solution: Replace synchronizers and/or shift forks
  • Estimated Cost to Fix: $500 - $1,200+
  • Recalls: None Found

6-Speed Automatic

• Torque Converter Shudder:
  • Description/Symptoms: Vibration or shuddering during acceleration
  • Solution: Replace torque converter
  • Estimated Cost to Fix: $1,000 - $2,000+
  • Recalls: None Found

Suspension

• Leaf Spring Failure:
  • Description/Symptoms: Broken or cracked leaf springs, sagging rear end
  • Solution: Replace leaf springs
  • Estimated Cost to Fix: $500 - $1,000+
  • Recalls: None Found

Electrical

• Alternator Failure:
  • Description/Symptoms: Electrical system problems, battery drain, warning lights
  • Solution: Replace alternator
  • Estimated Cost to Fix: $300 - $600+
  • Recalls: None Found
• Battery Drain Issue:
  • Description/Symptoms: Battery dies prematurely, loss of electrical power
  • Solution: Diagnose and repair electrical system
  • Estimated Cost to Fix: $100 - $500+
  • Recalls: None Found

Exterior

• Door Handle Issues:
  • Description/Symptoms: Door handle breaks, stuck, or fails to open
  • Solution: Replace door handle
  • Estimated Cost to Fix: $100 - $300+
  • Recalls: None Found
• Tailgate Lock Failure:
  • Description/Symptoms: Tailgate cannot be opened, lock mechanism jammed
  • Solution: Replace tailgate lock assembly
  • Estimated Cost to Fix: $200 - $400+
  • Recalls: None Found

Interior

• Dashboard Rattle:
  • Description/Symptoms: Rattling noises from the dashboard area
  • Solution: Tighten loose screws or panels
  • Estimated Cost to Fix: Free - $100+
  • Recalls: None Found
• Center Console Lid Issue:
  • Description/Symptoms: Center console lid does not open or close properly
  • Solution: Replace center console lid latch assembly
  • Estimated Cost to Fix: $100 - $200+
  • Recalls: None Found

Summary

The 2007 GMC Sierra 1500 HD Classic has several common issues, including engine problems, transmission issues, and electrical problems. Some of these issues can be severe and expensive to fix, such as AFM lifter failure and intake valve failure. However, the severity and cost of the issues vary depending on the specific engine and transmission options.