2003 Ford Grand Marquis

Introduction

The 2003 Ford Grand Marquis is a full-size luxury sedan that was offered with a choice of two engines and two transmissions. The standard 4.6-liter V8 engine produced 225 horsepower and 275 lb-ft of torque, while the optional 4.6-liter V8 engine produced 239 horsepower and 287 lb-ft of torque. Both engines were paired with a four-speed automatic transmission.

Critics praised the Grand Marquis for its comfortable ride, spacious interior, and powerful V8 engines. However, they also noted that the car’s handling and fuel economy were not as good as some of its competitors.

Engine

4.6-liter V8 Engine

• Spark plug failure
  • Description/Symptoms: Engine misfires, rough idle, poor performance
  • Solution: Replace spark plugs
  • Estimated Cost to Fix: $100 - $200+
  • Recalls: None Found
• Intake manifold gasket failure
  • Description/Symptoms: Coolant leaks, engine overheating
  • Solution: Replace intake manifold gasket
  • Estimated Cost to Fix: $300 - $500+
  • Recalls: None Found
• Timing chain tensioner failure
  • Description/Symptoms: Engine noise, reduced power
  • Solution: Replace timing chain tensioner
  • Estimated Cost to Fix: $500 - $1,000+
  • Recalls: None Found

4.6-liter V8 Engine (239 horsepower)

• Oil pan gasket leak
  • Description/Symptoms: Oil leaks, low oil levels
  • Solution: Replace oil pan gasket
  • Estimated Cost to Fix: $200 - $300+
  • Recalls: None Found
• Valve cover gasket leak
  • Description/Symptoms: Oil leaks, low oil levels
  • Solution: Replace valve cover gasket
  • Estimated Cost to Fix: $200 - $300+
  • Recalls: None Found

Transmission

Four-Speed Automatic Transmission

• Transmission slipping
  • Description/Symptoms: Difficulty shifting gears, loss of power
  • Solution: Rebuild or replace transmission
  • Estimated Cost to Fix: $1,500 - $3,000+
  • Recalls: None Found
• Torque converter failure
  • Description/Symptoms: Transmission shuddering, slipping
  • Solution: Replace torque converter
  • Estimated Cost to Fix: $500 - $1,000+
  • Recalls: None Found

Suspension

• Front suspension strut failure
  • Description/Symptoms: Poor handling, excessive bouncing
  • Solution: Replace front suspension struts
  • Estimated Cost to Fix: $400 - $600+
  • Recalls: None Found
• Rear suspension shock failure
  • Description/Symptoms: Poor handling, excessive bouncing
  • Solution: Replace rear suspension shocks
  • Estimated Cost to Fix: $300 - $500+
  • Recalls: None Found

Electrical

• Battery failure
  • Description/Symptoms: Difficulty starting the vehicle, dim lights
  • Solution: Replace battery
  • Estimated Cost to Fix: $100 - $200+
  • Recalls: None Found
• Alternator failure
  • Description/Symptoms: Dim lights, difficulty starting the vehicle
  • Solution: Replace alternator
  • Estimated Cost to Fix: $300 - $500+
  • Recalls: None Found

Exterior

• Headlight failure
  • Description/Symptoms: Dim or inoperable headlights
  • Solution: Replace headlight bulb
  • Estimated Cost to Fix: $50 - $100+
  • Recalls: None Found
• Taillight failure
  • Description/Symptoms: Dim or inoperable taillights
  • Solution: Replace taillight bulb
  • Estimated Cost to Fix: $50 - $100+
  • Recalls: None Found

Interior

• Power window failure
  • Description/Symptoms: Difficulty adjusting windows
  • Solution: Replace power window motor
  • Estimated Cost to Fix: $200 - $400+
  • Recalls: None Found
• Door lock failure
  • Description/Symptoms: Difficulty locking or unlocking doors
  • Solution: Replace door lock actuator
  • Estimated Cost to Fix: $200 - $400+
  • Recalls: None Found

Summary

The 2003 Ford Grand Marquis is a reliable and comfortable full-size sedan. However, it is not without its issues. Some of the most common problems include engine oil leaks, transmission slipping, and suspension failure. These issues can be expensive to fix, so it is important to be aware of them before purchasing a Grand Marquis.