2003 Chevrolet Sonora

Introduction

The 2003 Chevrolet Sonora was a mid-size SUV that offered a comfortable ride and spacious interior. It came equipped with a 4.2L Vortec V6 engine, producing 275 horsepower and 275 lb-ft of torque. The available transmission options were a 4-speed automatic and a 5-speed manual. Owners generally praised the vehicle’s reliability, comfort, and towing capacity. However, some common issues have been reported.

Engine

4.2L Vortec V6

• Intake Manifold Gasket Failure:
  • Description/Symptoms: Engine coolant leaks, overheating, rough idling
  • Solution: Replace intake manifold gaskets
  • Estimated Cost to Fix: $500 - $1,000
  • Recalls: None Found

Transmission

4-speed Automatic

• Transmission Slippage:
  • Description/Symptoms: Difficulty shifting gears, slipping out of gear
  • Solution: Rebuild or replace transmission
  • Estimated Cost to Fix: $1,500 - $3,000
  • Recalls: None Found

5-speed Manual

• No Issues Found

Suspension

• Front Control Arm Bushing Wear:
  • Description/Symptoms: Knocking or rattling noises, uneven tire wear
  • Solution: Replace control arm bushings
  • Estimated Cost to Fix: $200 - $400
  • Recalls: None Found
• Rear Leaf Spring Breakage:
  • Description/Symptoms: Sagging rear end, loss of stability
  • Solution: Replace leaf springs
  • Estimated Cost to Fix: $500 - $1,000
  • Recalls: None Found

Electrical

• Alternator Failure:
  • Description/Symptoms: Dimming lights, battery drain
  • Solution: Replace alternator
  • Estimated Cost to Fix: $500 - $1,000
  • Recalls: None Found
• Battery Failure:
  • Description/Symptoms: Difficulty starting, loss of electrical power
  • Solution: Replace battery
  • Estimated Cost to Fix: $100 - $200
  • Recalls: None Found

Exterior

• Door Handle Breakage:
  • Description/Symptoms: Difficulty opening doors
  • Solution: Replace door handles
  • Estimated Cost to Fix: $200 - $400
  • Recalls: None Found

Interior

• Radio Display Malfunction:
  • Description/Symptoms: Display blank or distorted
  • Solution: Replace radio display
  • Estimated Cost to Fix: $200 - $400
  • Recalls: None Found
• Power Window Failure:
  • Description/Symptoms: Windows not operating correctly, stuck in position
  • Solution: Replace window motor or switch
  • Estimated Cost to Fix: $200 - $500
  • Recalls: None Found

Summary

The 2003 Chevrolet Sonora is a generally reliable and comfortable vehicle. However, it is not without its issues. The most common problems include intake manifold gasket failure, transmission slippage, and suspension wear. The severity of these issues varies, with some being relatively minor and others requiring more extensive repairs. The estimated costs to fix these issues range from $200 to $3,000, depending on the specific problem and severity.