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 MANUALSCADILLAC2006STS AWD V8-4.6L VIN AREPAIR AND DIAGNOSISENGINE, COOLING AND EXHAUSTENGINESERVICE AND REPAIROVERHAULREPAIR INSTRUCTIONS130. STARTER MOTOR INSTALLATION
2006 Cadillac STS AWD V8-4.6L VIN A
130. Starter Motor Installation
2006 Cadillac STS AWD V8-4.6L VIN ASECTION 130. Starter Motor Installation
Starter Motor Installation
1. If installing a NEW starter motor, transfer the cables from the old starter motor.
2. Install the positive battery cable to the starter motor stud.
3. Notice: Refer to Fastener Notice in Service Precautions.
Install the starter motor stud nut.
^ Tighten the starter motor stud nut to 9.5 Nm (84 inch lbs.).
4. Install the solenoid wiring harness to the starter solenoid stud.
5. Install the starter solenoid stud nut.
^ Tighten the starter solenoid stud nut to 3.4 Nm (30 inch lbs.).
6. Position the starter motor in position.
7. Install the starter motor bolts.
^ Tighten the starter motor bolt to 30 Nm (22 ft. lbs.).
8. Install the crankshaft position sensor.
9. Install the crankshaft position sensor bolt.
^ Tighten the crankshaft position sensor bolt to 10 Nm (89 inch lbs.).
10. Install the knock sensors.
11. Install the knock sensor bolts.
^ Tighten the knock sensor bolts to 10 Nm (89 inch lbs.).
12. Install the knock and crankshaft position sensor wiring harness.
13. Connect the knock and crankshaft position sensor wiring harness brackets to the center, back and front of the block valley.
14. Install the knock and crankshaft position sensor wiring harness bolt (1).
^ Tighten the knock and crankshaft position sensor wiring harness bolt to 10 Nm (89 inch lbs.).
15. Connect the knock and crankshaft position sensor wiring harness to the knock sensors and crankshaft position sensor.
16. Install the ECT sensor to the right cylinder head.
^ Tighten the ECT sensor to 20 Nm (15 ft. lbs.).
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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.