Key Features:
– Full Wiring Diagram Included: Navigate electrical systems confidently with a complete wiring diagram.
– Manufacturer-Authorized Procedures: Follow recommended procedures sanctioned by Ford for accurate repairs.
– Easy-to-Follow Format for DIY Repairs: Whether you’re a seasoned DIY enthusiast or a professional, the manual’s clear instructions empower you to tackle repairs effectively.

Ensure every repair is performed to exacting standards with the trusted guidance of the original OEM workshop manual for the 2005-2010 Ford Mustang and Mustang GT S197.

CONTENTS: 2005-2010 Ford Mustang Repair Manual and Mustang GT S197

General Information

• • Identification Codes
  • Jacking and Lifting
  • Maintenance Schedule – Gasoline Engines
  • Noise Vibration and Harshness

Chasis

• • Brake System
  • Driveline
  • Steering System
  • Suspension

Powertrain

• • Automatic Transmission
  • Engine
  • Exhaust System
  • Fuel System
  • Manual Transmission

Electrical

• • Audio Systems
  • Battery and Charging System
  • Climate Control System
  • Electrical Distribution
  • Electronic Feature Group
  • Instrumentation and Warning Systems
  • Lighting

Body and Paint

• • Body
  • Frame and Mounting

Engine and Emission Facts Summary

• • 4.0L-SOHC
  • 4.6L-SOHC

Powertrain Control and Emissions Diagnosis

• • Introduction
  • Acronyms and Definitions
  • Description and Operation
  • Diagnostic Methods
  • Diagnostic Trouble Code (DTC) Charts and Descriptions
  • Pinpoint Tests
  • Reference Values
  • Symptom Charts

Wiring

• • Audio System, Navigation
  • Charging System
  • Climate Controlled Seats
  • Cluster and Panel Illumination
  • Component Location Index
  • Component Testing
  • Connector List
  • Connector Location Index
  • Connector Repair Procedures
  • Convertible Top
  • Cooling Fan
  • Electronic Engine Controls – 4.0L
  • Electronic Engine Controls – 4.6L
  • Electronic Engine Controls – 5.4L
  • Fog Lamps
  • Fuse and Relay Information
  • Ground Location Index
  • Grounds
  • Harness Location Index
  • Headlamps. Autolamps
  • Heated Window
  • Horn, Cigar Lighter
  • Instrument Cluster
  • Interior Lamps
  • Introduction
  • Luggage Compartment
  • Manual Climate Control System
  • Module Communications Network
  • Overhead Console
  • Parking, Rear and License Lamps
  • Passive Anti-Theft System
  • Power Distribution-SJB
  • Power Door Locks
  • Power Mirrors
  • Power Windows
  • Remote Keyless Entry and Alarm
  • Reversing Lamps
  • Seating
  • Shift Interlock
  • Speed Control
  • Splice Location Index
  • Starting System
  • Supplemental Restraint System
  • Symbols
  • Tire Pressure Monitor System
  • Transmission Controls – 5R55S
  • Turn Signal, Stop, Hazard Lamps
  • Vehicle Dynamic Systems
  • Vehicle Repair Location Charts
  • Wipers and Washers
  • Wiring Harness Overview

SAMPLE PAGES

🛠️ Common Issues with the 2005-2010 Ford Mustang

The 2005-2010 Ford Mustang GT (S197) marked the return of retro-styled muscle cars, blending modern engineering with classic Mustang heritage. This fifth-generation Mustang was well-regarded for its bold design, powerful V8 engine, and vast aftermarket support.

Ford offered various trims and special editions, including the GT, Shelby GT500, Bullitt, and more, making the S197 Mustang one of the most customizable and tunable Mustangs ever.

Trims & Configurations

🔹 Best for Performance: Shelby GT500

🔹 Best for Collectors: Bullitt Edition

🔹 Best Balance of Power & Daily Driving: Mustang GT (2008-2010 models have 315 hp)

Common Issues & Repairs

While the S197 Mustang GT is reliable, some issues arise over time:

1. Alternator Failure

• • Issue: The stock alternator tends to fail prematurely due to overheating.
  • Symptoms: Dimming headlights, battery warning light, electrical issues.
  • Remedy: Upgrade to a higher-output alternator (~$200-$400).

2. Manual Transmission Clutch Wear (Tremec TR-3650)

• • Issue: The 5-speed manual transmission (Tremec TR-3650) has weak factory clutch components.
  • Symptoms: Difficulty shifting, clutch slippage, hard 2nd-3rd shifts.
  • Remedy: Upgrading to an aftermarket clutch kit (~$700-$1,200) improves durability.

3. Cooling System Problems

• • Issue: The cooling system may struggle in hot climates or heavy driving conditions.
  • Symptoms: Overheating, coolant leaks, engine knocking.
  • Remedy:
    • Upgrading to a larger radiator (~$300-$600) helps.
    • Check thermostat & water pump (~$150-$300).

4. Rear Differential Whine

• • Issue: The limited-slip differential (LSD) can develop a whine due to wear or fluid breakdown.
  • Symptoms: Whining noise at highway speeds, rear-end vibrations.
  • Remedy: Changing differential fluid (~$100-$200) can help; rebuilt LSDs cost ~$500+.

5. Suspension Wear (Lower Control Arms & Bushings)

• • Issue: The stock control arm bushings can wear out, causing loose handling.
  • Symptoms: Clunking noises, poor traction, excessive wheel hop.
  • Remedy: Aftermarket lower control arms (~$150-$400) improve handling.

6. Interior Build Quality & Door Panel Cracks

• • Issue: The door panels and dashboard may develop cracks over time.
  • Symptoms: Cracked panels, peeling door inserts, rattles.
  • Remedy: Using UV protectants & replacing worn interior parts (~$100-$300).

Common Mechanical Issues

1. Engine (4.6L 3V V8 “Modular” Engine)
   • Spark Plug Breakage:
     • Problem: Two-piece spark plugs can seize and break during removal, requiring costly extraction.
     • Fix: Replace with updated one-piece spark plugs (Motorcraft SP-515). Use anti-seize compound during installation.
   • Timing Chain Tensioners/Phasers:
     • Problem: Worn tensioners or phasers cause rattling noises (often mistaken for “engine knock”).
     • Fix: Replace timing components and use high-quality oil (5W-20 or 5W-30 synthetic).
2. Manual Transmission (Tremec TR-3650)
   • Grinding Gears: Common in 2nd and 3rd gears due to worn synchronizers.
   • Clutch Issues: Premature clutch wear or pedal assembly failure (e.g., broken clutch return springs).
   • Fix: Upgrade to aftermarket synchronizers or consider a TR-6060 swap for high-performance use.
3. Suspension and Drivetrain
   • Front Control Arm Bushings: Worn bushings cause clunking noises or vague steering.
   • Rear Wheel Hop: Live axle design leads to wheel hop during hard acceleration.
     • Fix: Install aftermarket lower control arms or panhard bar.
4. Cooling System
   • Thermostat Housing Leaks: Plastic housing cracks over time.
     • Fix: Replace with aluminum housing.
5. Exhaust Manifolds
   • Cracking: Factory manifolds prone to cracking, especially in cold climates.
     • Fix: Upgrade to aftermarket headers.

Common Electrical Issues

1. Alternator Failure:
   • Symptoms: Battery warning light, dimming headlights.
   • Fix: Replace alternator and check battery health.
2. Power Window Regulators:
   • Failure: Windows stick or stop working.
   • Fix: Replace regulator/motor assembly.
3. Fuel Pump Driver Module (FPDM):
   • Problem: Overheats, causing intermittent stalling or no-start conditions.
   • Fix: Relocate FPDM from rear axle to a cooler area.
4. Faulty Sensors:
   • Camshaft Position Sensor (CMP): Triggers check engine light (P0340/P0345 codes).
   • Throttle Position Sensor (TPS): Causes erratic throttle response.

Performance Specs (GT & Shelby GT500)

🔹 Best for Daily Driving: 2008-2010 Mustang GT (315 hp, better tuning)

🔹 Best for Racing: Shelby GT500 (540 hp in 2010)

🔹 Best for Weekend Fun: Bullitt Edition (Unique styling, performance tuning)

Key Recalls

• • Takata Airbag Inflators (2005–2008 models): NHTSA 16V-356 (risk of rupture).
  • Passenger Airbag Deactivation Switch (2005–2006): NHTSA 06V-286 (fire risk due to fluid ingress).
  • Brake Pedal Bracket (2005–2009): NHTSA 09V-399 (bracket cracks, affecting braking).

Rust and Body Issues

• • Undercarriage/Wheel Wells: Prone to rust in snowy/salty regions.
  • Hood/Decklid Paint Chipping: Factory paint may chip along edges.

Maintenance Schedule

Regular maintenance keeps the Mustang GT running strong.

Competitors

The 2005-2010 Mustang GT (S197) competes with other modern muscle cars.

🔹 Best for Straight-Line Speed: Camaro SS (More power, heavier body)

🔹 Best for Handling: Nissan 370Z / BMW M3 (Lighter, sportier ride)

🔹 Best for Retro Muscle Car Feel: Challenger R/T (Classic looks, cruiser ride)

Recommendations

1. 1. Spark Plug Maintenance: Replace with one-piece plugs early to avoid breakage.
   2. Oil Changes: Use full synthetic oil and change every 5k miles to protect timing components.
   3. Upgrade Suspension: Address wheel hop with aftermarket control arms or shocks.
   4. Check Recalls: Verify unresolved recalls via NHTSA VIN lookup.
   5. Pre-Purchase Inspection: Focus on transmission health, rust, and engine noise.

Pros & Cons

Pros

✅ Powerful & Reliable 4.6L V8 – Bulletproof engine with strong aftermarket support.

✅ Retro-Styled Exterior – Classic Mustang look with modern performance.

✅ Affordable Performance – Great value for a muscle car.

✅ Easily Modifiable – Huge aftermarket support for tuning & upgrades.

✅ Strong Resale Value – Well-maintained models hold their value.

Cons

❌ Weak Clutch & Transmission Issues – TR-3650 needs aftermarket clutch for performance.

❌ Interior Quality Feels Cheap – Plastic-heavy, prone to wear & rattles.

❌ Rear Suspension Can Feel Loose – Stock suspension allows too much wheel hop.

❌ Stock Brakes Could Be Better – Upgrading to performance brakes recommended for track use.

Reliability Note

The 2005–2010 Mustang GT is robust but requires proactive maintenance. The 4.6L V8 is durable if timing components and spark plugs are addressed, while the TR-3650 transmission benefits from gentle shifting. Rust and electrical quirks are manageable with vigilance. A well-maintained example can exceed 200k miles, making it a solid choice for enthusiasts.

Final Verdict

The 2005-2010 Ford Mustang GT (S197) is a fantastic modern muscle car, offering strong V8 power, classic styling, and a great aftermarket scene. While some parts (clutch, suspension) need upgrading, the Mustang GT is one of the best budget-friendly performance cars on the market.

👉 Verdict: Best for enthusiasts looking for an affordable V8 muscle car with excellent tuning potential. 🚗💨