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The installation steps for the Cruze 12V starter motor are as follows:Preparation WorkConfirm that the starter motor model matches the vehicle, and prepare tools such as a 12mm box-end wrench, 10mm wrench, Phillips screwdriver, a small socket wrench with a short extension bar and an 8mm socket, and a torque wrench.Ensure the vehicle is in a stable position, secure it with the handbrake, put on gloves and goggles, and disconnect the negative cable of the vehicle battery.Removing the Old Starter MotorOpen the engine compartment and locate the starter motor, which is generally located at the lower right rear or lower left rear of the engine.Use a 12mm box-end wrench to loosen the fixing nut of the solenoid switch C terminal, make assembly marks, remove the solenoid switch, and then use a 10mm wrench to remove the solenoid switch fixing nut.Use a Phillips screwdriver to remove the two fixing nuts of the brushes on the rear end cover and take out the bolts.Use a small socket wrench with a short extension bar and an 8mm socket to remove the two long bolts of the starter motor and take out the bolts.Remove the old starter motor from its installation position.Install a new starter •  Place the new starter in the original installation position, ensure the mounting holes are aligned, then insert the fixing bolts and tighten them gently by hand.  •  Install the starter assembly with 2 bolts, and tighten them to a torque of 37N・m using a torque wrench.  •  Connect the electrical circuits of the starter according to the previously marked positions, ensure the connections are secure, and connect terminal 30 with a nut at a torque of 9.8N・m.  •  Close the terminal cover, install the wire harness bracket with bolts at a torque of 8.4N・m, and then install 2 wire harness clips.Inspection and Testing •  Reconnect the negative battery cable.  •  Start the vehicle, observe whether the starter works normally, check for any abnormal noise or jamming, and ensure that the starter can start the engine smoothly.

In addition to the general precautions mentioned earlier, there are also some key points that need attention when installing a Cruze 12V starter: • Safety Operation ◦ Strict Power-Off Sequence: Before disassembling the starter, you must first turn off the ignition switch, then remove the battery ground wire and the positive battery terminal from the solenoid in sequence. The reverse order is followed during installation, connecting the positive battery terminal on the solenoid first, then the positive and negative battery terminals, ensuring that the ignition switch is turned off before connection to prevent damage to electronic devices on the vehicle. ◦ Prevent Tool Loss: After installation, carefully check the engine compartment for any tools left behind to avoid tool loss causing component damage or other safety hazards during vehicle operation.

Component Protection:

◦ Avoid Part Damage: It is strictly forbidden to strike the starter with a hammer or wrench to prevent damage to the components. For parts that fit tightly, use pulling and pressing tools for separation and assembly, rather than striking them forcefully.

◦ Pay Attention to Cleaning Methods: When cleaning starter components, only cotton rags wrung out of gasoline can be used to wipe the armature, excitation winding, and electromagnetic switch assembly, or compressed air can be blown to clean them. This prevents short circuits or fires caused by residual liquids. Other components can be cleaned with liquid cleaners.

In terms of installation specifications •  Ensure model matching: Before installation, carefully check whether the model and specifications of the new starter completely match the vehicle, including voltage, power, connection method, and size. At the same time, ensure that the starter has no external damage and all components are complete.  •  Pay attention to the order of circuit connections: When connecting the electrical circuits of the starter, follow the correct order. First connect the positive wire of the battery to the solenoid switch, then connect other circuits. Ensure the connections are firm, with no loose or exposed parts, to avoid short circuits or electric shocks.  •  Check gear meshing: After installation, check the meshing between the starter's gear and the engine flywheel to ensure that the gears can engage properly and there is no slipping or abnormal noise during startup.Usage and Maintenance Aspects • Control the starting time: When using the starter, each connection time should not exceed 5 seconds, and the interval between consecutive starts should be kept between 10-15 seconds. If the engine fails to start after three consecutive attempts, you should first check for engine faults before trying to start again to avoid damaging the starter due to frequent starting.

References：The content you provided regarding the installation precautions for the 12V starter of the Cruze may come from professional automotive websites such as Pacific Auto Network, Autohome, as well as automotive repair manuals, etc. Several articles on Pacific Auto Network, such as "What Should Be Noted When Replacing a Starter Motor" and "How to Correctly Install a Starter", all mention key points for starter installation, such as avoiding knocking, tightening bolts according to specified torque, and controlling the starting time, which are consistent with the content you provided. Autohome's "What Details Should Be Paid Attention to When Replacing a Starter?" also emphasizes following specified steps for disassembly and assembly, avoiding damage to internal parts, etc., which are similar to the precautions you provided. In addition, the official repair manual for the Cruze model from the car manufacturer may also contain similar starter installation precautions.