2002 Chevrolet Sonora

2002 Chevrolet Sonora

The 2002 Chevrolet Sonora is a mid-size SUV that was available with two engine options: a 3.5L V6 with 200 horsepower and 220 lb-ft of torque, and a 4.3L V6 with 275 horsepower and 344 lb-ft of torque. Both engines were paired with a 4-speed automatic transmission.

The Sonora received praise for its spacious interior, comfortable ride, and powerful engines. However, it also drew criticism for its poor fuel economy, dated interior design, and lack of certain features.

Engine

3.5L V6

• Intake Manifold Gasket Failure:
  • Description/Symptoms: Leaking coolant, loss of power, rough idle, check engine light
  • Solution: Replace intake manifold gaskets
  • Estimated Cost to Fix: $500 - $800
  • Recalls: None Found
• Timing Chain Failure:
  • Description/Symptoms: Engine rattling, loss of power, check engine light
  • Solution: Replace timing chain and related components
  • Estimated Cost to Fix: $1,000 - $1,500
  • Recalls: None Found

4.3L V6

• No Issues Found

Transmission

4-Speed Automatic Transmission

• Torque Converter Failure:
  • Description/Symptoms: Slipping gears, delayed engagement, shuddering
  • Solution: Replace torque converter
  • Estimated Cost to Fix: $1,200 - $1,800
  • Recalls: None Found
• Transmission Control Module (TCM) Failure:
  • Description/Symptoms: Shifting problems, check engine light
  • Solution: Replace TCM
  • Estimated Cost to Fix: $400 - $600
  • Recalls: None Found

Suspension

• Front Strut Mount Failure:
  • Description/Symptoms: Clunking noise, reduced handling, premature tire wear
  • Solution: Replace strut mounts
  • Estimated Cost to Fix: $400 - $600
  • Recalls: None Found
• Rear Sway Bar Link Failure:
  • Description/Symptoms: Noises when turning or going over bumps, reduced handling
  • Solution: Replace sway bar links
  • Estimated Cost to Fix: $200 - $300
  • Recalls: None Found

Electrical

• Battery Drain:
  • Description/Symptoms: Battery going dead prematurely, difficulty starting
  • Solution: Diagnose and repair electrical issue causing drain
  • Estimated Cost to Fix: Varies depending on the cause
  • Recalls: None Found
• Alternator Failure:
  • Description/Symptoms: Battery not charging, dimming headlights, electrical issues
  • Solution: Replace alternator
  • Estimated Cost to Fix: $600 - $800
  • Recalls: None Found

Exterior

• Rust Prone Areas:
  • Description/Symptoms: Rust developing on body panels, frame, and exhaust
  • Solution: Rustproofing or repairs as necessary
  • Estimated Cost to Fix: Varies depending on severity
  • Recalls: None Found

Interior

• Dashboard Cracking:
  • Description/Symptoms: Cracks forming on dashboard
  • Solution: Replace dashboard or repair with dashboard cover
  • Estimated Cost to Fix: $400 - $600
  • Recalls: None Found
• Power Window Failure:
  • Description/Symptoms: Windows not operating properly, stuck or slow
  • Solution: Replace window motor or regulator
  • Estimated Cost to Fix: $200 - $400
  • Recalls: None Found

Summary

The 2002 Chevrolet Sonora is a reliable vehicle with a few potential issues. The most common problems include engine intake manifold gasket failure, timing chain failure, and transmission torque converter failure. These issues can be costly to fix, ranging from $500 to $1,800. However, the Sonora is generally a safe and comfortable vehicle that offers plenty of space and power.