Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSFORD1999MUSTANG GT, 2D CONVERTIBLE, STANDARDREPAIR AND DIAGNOSIS (SINGLE PAGE)EXTERNAL PAGESDIFFERENT CARSECTION 449 (IDENTIFICATION CODES - EXCURSION & F250-F550 SUPER DUTY)DESCRIPTION AND OPERATIONIDENTIFICATION CODESVEHICLE IDENTIFICATION NUMBER (VIN)ENGINE CODE
1999 Ford Mustang GT, 2D Convertible, Standard
Engine Code
1999 Ford Mustang GT, 2D Convertible, StandardSECTION Engine Code
WARNING: This page is about a different car, the 2004 Ford Pickup, 2004 Ford F550 Super Duty, 2004 Ford F450 Super Duty, 2004 Ford Excursion, and 2004 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
The eighth VIN position is the engine displacement and number of cylinders.
- D - 6.8L, SOHC, EFI, V10, gaseous fuel prep pack (F-Super Duty)
- L - 5.4L, Modular, SOHC, EFI, V8, Gas (F-Super Duty, Excursion)
- P - 6.0L, OHV, DI Turbo, V8, Diesel (F-Super Duty, Excursion)
- S - 6.8L, SOHC, EFI, V10, Gas (F-Super Duty, Excursion)
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.