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 MANUALSCADILLAC1996ELDORADO V8-4.6L VIN 9REPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTIGNITION SYSTEMSENSORS AND SWITCHES - IGNITION SYSTEMKNOCK SENSORTESTING AND INSPECTION
1996 Cadillac Eldorado V8-4.6L VIN 9
Knock Sensor: Testing and Inspection
1996 Cadillac Eldorado V8-4.6L VIN 9SECTION Testing and Inspection
KNOCK SENSOR SYSTEM CHECKS
This powertrain system runs several tests of the Knock Sensor (KS) system. A fault in the KS system can set several PCM DTC's. DTC P0325 will set if the a KS Module or PCM fault is detected. DTC P0326 will detect low octane fuel or engine noise and DTC P0326 will detect Knock Sensor and/or circuit faults.
This powertrain system runs several tests of the Knock Sensor (KS) system. A fault in the KS system can set several PCM DTC's. DTC P0325 will set if the a KS Module or PCM fault is detected. DTC P0326 will detect low octane fuel or engine noise and DTC P0326 will detect Knock Sensor and/or circuit faults.
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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.