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.
Engine Code Location
Engine code letter or number is fifth digit in eleven digit Vehicle Identification Number stamped on a tag on left front door lock face panel or on metal tab riveted to instrument panel close to windshield on drivers side and visible from outside vehicle.
| Engine | Engine Code |
|---|---|
| 2000 cc 4 Cyl. 2-Bbl. | X |
| 2300 cc 4 Cyl. 2-Bbl. | Y |
| 2800 cc V6 2-Bbl. | Z |
| 200" 6 Cyl. 1-Bbl. | T |
| 250" 6 Cyl. 1-Bbl. | L |
| 302" V8 2-Bbl. | F |
| 351" V8 2-Bbl. | H |
| 351" V8 4-Bbl. | Q |
| 400" V8 2-Bbl. | S |
| 460" V8 4-Bbl. | A |
| 460" V8 4-Bbl. (Police) | C |
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.
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.
Rather have a pro handle this?
A certified mobile mechanic comes to your home or office. They bring the tools, you stay comfortable. No tow truck, no waiting room, no surprises.
No obligation. See pricing before you book.