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 MANUALSCADILLAC1992DEVILLE V8-300 4.9LREPAIR AND DIAGNOSISRELAYS AND MODULESRELAYS AND MODULES - POWERTRAIN MANAGEMENTRELAYS AND MODULES - IGNITION SYSTEMIGNITION CONTROL MODULESERVICE AND REPAIR
1992 Cadillac DeVille V8-300 4.9L
Ignition Control Module: Service and Repair
1992 Cadillac DeVille V8-300 4.9LSECTION Service and Repair
HEI Distributor Components:
REMOVE OR DISCONNECT
1. Remove distributor cap and rotor.
2. Remove two module attaching screws.
3. Lift up module and stamped metal shield, if equipped.
4. Disconnect leads from module. Observe color code on leads as these cannot be interchanged.
5. Remove module.
NOTE: Be sure there is a sufficient amount of silicone grease on the metal face of the module and on the distributor base (where the module seats), when reinstalling the module. The purpose of the silicone grease is to cool the module.
INSTALL OR CONNECT
1. Install module.
2. Connect leads to module.
3. Install module shield, if equipped, and module attaching screws.
4. Install cap and rotor.
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.