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.
1994 Cadillac Seville SLSFACTORY OEM SERVICE PROCEDURE
Ignition Timing: 4.9L
- Place transmission in Park. Ensure engine is at normal operating temperature. Turn A/C and all accessories off. Ensure system is not in diagnostic mode.
- Jumper Data Link Connector (DLC) terminals "A" and "B". SET TIMING MODE will be displayed on Driver Information Center (DIC). Connect timing light to spark plug No. 1 wire. Check ignition timing, and adjust if necessary. See IGNITION TIMING SPECIFICATIONS . Tighten distributor, and recheck timing. Remove jumper from DLC and reconnect spark plug No. 1 wire.
IGNITION TIMING SPECIFICATIONS
| Application | Degrees BTDC @ RPM |
|---|---|
| 4.9L | 10 @ 800 |
Factory Service Tools
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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.
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