2007 Chevrolet Trailblazer

Introduction

The 2007 Chevrolet Trailblazer is a mid-size SUV offered with a variety of engine and transmission options. It comes standard with a 4.2L inline-6 engine producing 291 horsepower and 295 lb-ft of torque. Optional engine choices include a 5.3L V8 producing 326 horsepower and 348 lb-ft of torque, and a 6.0L V8 producing 366 horsepower and 370 lb-ft of torque. Transmission options include a 5-speed automatic, a 6-speed automatic, and a 4-speed automatic.

The Trailblazer has received positive reviews for its powerful engines, spacious interior, and comfortable ride. However, it has also been criticized for its poor fuel economy, cramped third row, and outdated styling.

Engine

4.2L Inline-6

• Cylinder deactivation valve failure
  • Description/Symptoms: Rough idle, engine hesitation, decreased fuel economy
  • Solution: Replace the cylinder deactivation valve
  • Estimated Cost to Fix: $400 - $600+
  • Recalls: None Found
• Intake manifold gasket leak
  • Description/Symptoms: Coolant leak, engine overheating, white smoke from exhaust
  • Solution: Replace the intake manifold gasket
  • Estimated Cost to Fix: $300 - $500+
  • Recalls: None Found

5.3L V8

• Valve cover gasket leak
  • Description/Symptoms: Oil leak from valve covers, burning oil smell
  • Solution: Replace the valve cover gaskets
  • Estimated Cost to Fix: $200 - $400+
  • Recalls: None Found
• Intake manifold runner control (IMRC) failure
  • Description/Symptoms: Reduced engine power, engine stalling, engine misfires
  • Solution: Replace the IMRC system
  • Estimated Cost to Fix: $500 - $700+
  • Recalls: None Found

6.0L V8

• Connecting rod bearing failure
  • Description/Symptoms: Knocking sound from engine, loss of engine power, engine failure
  • Solution: Replace the connecting rod bearings
  • Estimated Cost to Fix: $2,000 - $3,000+
  • Recalls: None Found

Transmission

5-speed Automatic

• Transmission slipping
  • Description/Symptoms: Difficulty shifting gears, loss of power, delayed gear engagement
  • Solution: Rebuild or replace the transmission
  • Estimated Cost to Fix: $1,500 - $2,500+
  • Recalls: None Found
• Torque converter shudder
  • Description/Symptoms: Vibration during acceleration, especially at low speeds
  • Solution: Replace the torque converter
  • Estimated Cost to Fix: $500 - $700+
  • Recalls: None Found

6-speed Automatic

• Shift solenoid failure
  • Description/Symptoms: Delayed shifting, hard shifting, transmission slipping
  • Solution: Replace the shift solenoid
  • Estimated Cost to Fix: $300 - $500+
  • Recalls: None Found
• Transmission cooler line leak
  • Description/Symptoms: Transmission fluid leak from cooler lines, transmission overheating
  • Solution: Replace the transmission cooler lines
  • Estimated Cost to Fix: $200 - $400+
  • Recalls: None Found

Suspension

• Front suspension strut mount failure
  • Description/Symptoms: Noises from front suspension, poor handling, misalignment
  • Solution: Replace the strut mounts
  • Estimated Cost to Fix: $400 - $600+
  • Recalls: NHTSA 16V-026
• Rear suspension leaf spring failure
  • Description/Symptoms: Sagging rear suspension, poor load-carrying capacity, rough ride
  • Solution: Replace the leaf springs
  • Estimated Cost to Fix: $500 - $700+
  • Recalls: None Found

Electrical

• Alternator failure
  • Description/Symptoms: Dimming headlights, slow engine cranking, battery warning light
  • Solution: Replace the alternator
  • Estimated Cost to Fix: $500 - $700+
  • Recalls: None Found
• Battery drain
  • Description/Symptoms: Battery dies prematurely, electrical components not functioning
  • Solution: Inspect and test electrical system for parasitic draw, repair as needed
  • Estimated Cost to Fix: Depends on the source of the draw
  • Recalls: None Found

Exterior

• Tailgate latch failure
  • Description/Symptoms: Tailgate does not open or close properly
  • Solution: Replace the tailgate latch
  • Estimated Cost to Fix: $200 - $400+
  • Recalls: NHTSA 15V-492
• Hood latch failure
  • Description/Symptoms: Hood does not open or close properly
  • Solution: Replace the hood latch
  • Estimated Cost to Fix: $100 - $200+
  • Recalls: None Found

Interior

• Climate control panel failure
  • Description/Symptoms: HVAC controls not working, temperature not adjustable
  • Solution: Replace the climate control panel
  • Estimated Cost to Fix: $300 - $500+
  • Recalls: None Found
• Power window motor failure
  • Description/Symptoms: Power windows not working, window stuck in up or down position
  • Solution: Replace the power window motor
  • Estimated Cost to Fix: $200 - $400+
  • Recalls: None Found

Summary

The 2007 Chevrolet Trailblazer is a powerful and spacious SUV with some known issues. The severity of the issues varies, with some being minor and inexpensive to fix, while others can be major and costly. Potential buyers should be aware of these issues and factor them into their purchasing decision.