2003 Cadillac Escalade EXT

Introduction:

The 2003 Cadillac Escalade EXT is a full-size luxury pickup truck offered with two engine options paired with a single transmission. The 5.3L V8 engine produces 285 horsepower and 330 lb-ft of torque, while the 6.0L V8 engine offers 345 horsepower and 380 lb-ft of torque. Both engines are paired with a 4-speed automatic transmission. Owners appreciate the Escalade EXT’s spacious cabin, powerful engine options, and luxurious amenities. However, the vehicle is criticized for its poor fuel economy, limited off-road capabilities, and cramped third-row seating.

Engine

5.3L V8

• Intake Manifold Runner Control (IMRC) Valve Failure:
  • Description/Symptoms: The IMRC valves fail to operate properly, resulting in reduced engine power, hesitation, and increased fuel consumption.
  • Solution: Replacement of the IMRC valves.
  • Estimated Cost to Fix: $500 - $1,000
  • Recalls: None Found
• Cylinder Misfires:
  • Description/Symptoms: Faulty spark plugs, ignition coils, or fuel injectors can cause misfires, leading to rough idling, loss of power, and increased emissions.
  • Solution: Diagnosis and replacement of the affected components.
  • Estimated Cost to Fix: $200 - $600
  • Recalls: None Found

6.0L V8

• Valve Spring Failure:
  • Description/Symptoms: Over time, the valve springs can weaken and break, causing catastrophic engine damage.
  • Solution: Replacement of the valve springs.
  • Estimated Cost to Fix: $1,500 - $2,500
  • Recalls: NHTSA Campaign ID: 12V262000

Transmission

• 4-Speed Automatic Transmission:
  • Solenoid Failure:
    • Description/Symptoms: The transmission solenoids can fail, leading to hard shifts, slipping gears, and transmission failure.
    • Solution: Replacement of the faulty solenoids.
    • Estimated Cost to Fix: $500 - $1,200
    • Recalls: None Found

Suspension

• Front Lower Control Arm Bushings Failure:
  • Description/Symptoms: The front lower control arm bushings can deteriorate, causing a clunking noise while driving over bumps, and uneven tire wear.
  • Solution: Replacement of the control arm bushings.
  • Estimated Cost to Fix: $300 - $600
  • Recalls: None Found
• Rear Leaf Spring Breakage:
  • Description/Symptoms: The rear leaf springs can break, reducing suspension support and causing a sagging rear end.
  • Solution: Replacement of the leaf springs.
  • Estimated Cost to Fix: $500 - $1,000
  • Recalls: None Found

Electrical

• Alternator Failure:
  • Description/Symptoms: The alternator can fail, leading to a loss of electrical power, battery drain, and engine stalling.
  • Solution: Replacement of the alternator.
  • Estimated Cost to Fix: $500 - $800
  • Recalls: None Found
• Battery Terminal Corrosion:
  • Description/Symptoms: The battery terminals can corrode, causing difficulty starting the vehicle and electrical system malfunctions.
  • Solution: Cleaning or replacing the battery terminals.
  • Estimated Cost to Fix: $100 - $200
  • Recalls: None Found

Exterior

• Sunroof/Moonroof Leak:
  • Description/Symptoms: The sunroof or moonroof can leak, causing water damage to the interior.
  • Solution: Repairing or replacing the sunroof or moonroof seals.
  • Estimated Cost to Fix: $500 - $1,000
  • Recalls: None Found

Interior

• Dashboard Lighting Failure:
  • Description/Symptoms: The dashboard lighting can fail, making it difficult to see the gauges and controls at night.
  • Solution: Replacement of the dashboard lighting bulbs.
  • Estimated Cost to Fix: $100 - $300
  • Recalls: None Found
• HVAC Blower Motor Failure:
  • Description/Symptoms: The HVAC blower motor can fail, resulting in a lack of airflow from the vents.
  • Solution: Replacement of the blower motor.
  • Estimated Cost to Fix: $300 - $500
  • Recalls: None Found

Summary:

Overall, the 2003 Cadillac Escalade EXT has some potential reliability issues, particularly with the engine and transmission. The severity and cost of these issues vary, with some being relatively minor and inexpensive to fix, while others can be more serious and costly.