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 MANUALSCADILLAC1998SEVILLE SLS V8-4.6L VIN YREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSKNOCK SENSOR MODULESERVICE AND REPAIR
1998 Cadillac Seville SLS V8-4.6L VIN Y
Knock Sensor Module: Service and Repair
1998 Cadillac Seville SLS V8-4.6L VIN YSECTION Service and Repair
Knock Sensor Module Replacement
Removal Procedure
1. Remove the PCM (3) from the vehicle.
2. Remove the two KS Module cover screws.
3. Grasp the KS Module tabs with your thumb and finger.
4. Squeeze the tabs together.
5. Pull the KS Module straight up.
Installation Procedure
1. Remove the two KS Module cover screws and remove cover (If not previously removed).
2. Hold the KS Module with your thumb and finger.
3. Insert the KS Module straight down into the PCM through the access opening.
4. Press the KS Module firmly into the PCM connector.
Important: Ensure there is a good seal between access cover and the PCM.
5. Place the KS Module cover (1) on the PCM (3).
Notice: Refer to Fastener Notice in Service Precautions.
6. Install the two mounting screws.
Tighten the cover screws to 5.1 N.m (45 lb in).
7. Install the PCM (3).
Removal Procedure
Knock Sensor Module Service:
1. Remove the PCM (3) from the vehicle.
2. Remove the two KS Module cover screws.
Knock Sensor Removal/Installation:
3. Grasp the KS Module tabs with your thumb and finger.
4. Squeeze the tabs together.
5. Pull the KS Module straight up.
Installation Procedure
Knock Sensor Module Service:
1. Remove the two KS Module cover screws and remove cover (If not previously removed).
Knock Sensor Removal/Installation:
2. Hold the KS Module with your thumb and finger.
3. Insert the KS Module straight down into the PCM through the access opening.
4. Press the KS Module firmly into the PCM connector.
Important: Ensure there is a good seal between access cover and the PCM.
Knock Sensor Module Service:
5. Place the KS Module cover (1) on the PCM (3).
Notice: Refer to Fastener Notice in Service Precautions.
6. Install the two mounting screws.
Tighten the cover screws to 5.1 N.m (45 lb in).
7. Install the PCM (3).
RENDER: 1.0x
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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.