The alternator in a Honda CR-V operates various electrical devices in the vehicle while the engine is running. A voltage regulator keeps the voltage level constant and is usually part of the alternator assembly. You may need to replace the alternator if your headlights become dimmer while driving or your battery repeatedly runs down.
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Things you need
- New alternator
- Socket wrench set
- Torque wrench
Determine which alternator your Honda CR-V will need. You'll want to be sure the new alternator is compatible with your CR-V's engine. Models made from 1996 to 2001 have a 2.0 L B20B or B20Z engine and models made after 2001 may be equipped with a 2.0 L, 2.2 L turbo diesel or 2.4 L engine.
Disconnect the negative battery cable and the accessory drive belts with a socket wrench. Unplug the four-prong connector from the back of the alternator. Remove the terminal nut with a socket wrench and detach the terminal lead from the rear of the alternator.
Use a socket wrench to remove the adjusting bolt and lock nut along with the through bolt so that you can take off the alternator.
Install the new alternator assembly. Tighten the through bolt to 33 foot pounds and the adjusting lock nut to 17 foot pounds with a torque wrench. Attach the four-prong connector and the battery terminal to the alternator and torque the battery terminal nut to 70 inch pounds.
Replace the accessory drive belts and adjust them to the proper tension. Connect the negative battery cable with a socket wrench.
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