2004 Chevrolet Sonora

Introduction

The 2004 Chevrolet Sonora is a mid-size SUV known for its spacious cabin, comfortable ride, and powerful engine options. Available engine options include a 3.6L V6 with 285 horsepower and 273 lb-ft of torque and a 5.3L V8 with 325 horsepower and 335 lb-ft of torque. Transmission options include a 4-speed automatic and a 5-speed automatic. Owners appreciate the Sonora’s rugged exterior, versatile interior, and off-road capabilities, while some complain about its high fuel consumption and lack of modern features.

Engine

3.6L V6

• Excessive Oil Consumption:
  • Description/Symptoms: Oil levels drop rapidly, requiring frequent topping-up.
  • Solution: Replace or repair piston rings.
  • Estimated Cost to Fix: $1,000 - $2,000+
  • Recalls: None Found
• Intake Manifold Gasket Failure:
  • Description/Symptoms: Coolant leaks, reduced engine performance.
  • Solution: Replace intake manifold gasket.
  • Estimated Cost to Fix: $500 - $1,000
  • Recalls: None Found

5.3L V8

• Cylinder Head Gasket Failure:
  • Description/Symptoms: Engine overheating, coolant leaks, white smoke from exhaust.
  • Solution: Replace cylinder head gaskets.
  • Estimated Cost to Fix: $1,500 - $2,500+
  • Recalls: NHTSA: 04V025000, 10V272000

Transmission

4-Speed Automatic

• Slipping Gears:
  • Description/Symptoms: Transmission hesitates or fails to engage properly.
  • Solution: Rebuild or replace transmission.
  • Estimated Cost to Fix: $1,800 - $3,000+
  • Recalls: None Found

5-Speed Automatic

• Torque Converter Failure:
  • Description/Symptoms: Torque converter locks up, causing stalling or shuddering.
  • Solution: Replace torque converter.
  • Estimated Cost to Fix: $1,200 - $2,000
  • Recalls: None Found

Suspension

• Front Suspension Strut Mount Failure:
  • Description/Symptoms: Abnormal noises from front suspension, reduced handling.
  • Solution: Replace strut mount.
  • Estimated Cost to Fix: $200 - $400
  • Recalls: None Found
• Rear Suspension Leaf Spring Sagging:
  • Description/Symptoms: Rear end of the vehicle appears lower, reduced load capacity.
  • Solution: Replace leaf springs.
  • Estimated Cost to Fix: $400 - $800
  • Recalls: None Found

Electrical

• Alternator Failure:
  • Description/Symptoms: Battery not charging, electrical system malfunctions.
  • Solution: Replace alternator.
  • Estimated Cost to Fix: $500 - $1,000
  • Recalls: None Found
• Body Control Module Failure:
  • Description/Symptoms: Electrical system malfunctions, such as power windows, locks, and lights not working.
  • Solution: Replace body control module.
  • Estimated Cost to Fix: $800 - $1,500
  • Recalls: None Found

Exterior

• Door Lock Actuator Failure:
  • Description/Symptoms: Doors fail to lock or unlock using key fob or power button.
  • Solution: Replace door lock actuator.
  • Estimated Cost to Fix: $200 - $400
  • Recalls: None Found
• Rear Wiper Motor Failure:
  • Description/Symptoms: Rear wiper does not work.
  • Solution: Replace rear wiper motor.
  • Estimated Cost to Fix: $150 - $300
  • Recalls: None Found

Interior

• Climate Control Malfunction:
  • Description/Symptoms: Heater or air conditioner does not work or blows lukewarm air.
  • Solution: Replace or repair climate control actuator.
  • Estimated Cost to Fix: $300 - $600
  • Recalls: None Found
• Power Seat Failure:
  • Description/Symptoms: Power seats do not move or adjust.
  • Solution: Replace power seat motor or switch.
  • Estimated Cost to Fix: $200 - $400
  • Recalls: None Found

Summary

The 2004 Chevrolet Sonora has some potential issues to be aware of, particularly with the engine and transmission. However, many of the repairs are relatively affordable, and the overall severity of the issues is moderate. With proper maintenance and timely repairs, the Sonora can provide its owners with years of reliable service.