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.
1999 Chevrolet Cutaway 7.4 JFACTORY OEM SERVICE PROCEDURE
Ignition Coil
IGNITION COIL RESISTANCE
| Application | Ohms | |||||
|---|---|---|---|---|---|---|
| 1.6L, 2.0L, 2.2L & 3.4L | (1) | |||||
| 4.3L, 5.0L, 5.7L & 7.4L | ||||||
| Primary | 0.1 | |||||
| Secondary | 5000-25,000 | |||||
| 4.8L, 5.3L & 6.0L (Delphi Coils) | ||||||
| Ground Circuit (2) | 0-10,000 | |||||
| Secondary | 3000-7000 | |||||
|
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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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