Here's a breakdown of what's involved, assuming you need to replace the entire alternator:
1. Gather Tools and Materials:
* New Alternator: Get a replacement alternator specifically designed for your 2004 Dodge Intrepid's engine (check your engine size – 2.7L, 3.5L).
* Socket Wrench Set: Including metric sizes (likely 10mm, 13mm, 15mm, possibly others).
* Wrench Set: May need open-end or combination wrenches.
* Ratchet and Extensions: To reach difficult bolts.
* Screwdrivers: Phillips and flathead, likely.
* Jack and Jack Stands: Crucial for safety. NEVER work under a car supported only by a jack.
* Wheel Chocks: Place these behind the wheels opposite the side you're working on.
* Gloves: Protect your hands.
* Safety Glasses: Protect your eyes.
* Battery Terminal Cleaner/Disconnect Tool: To safely disconnect the battery.
2. Disconnect the Battery:
* Negative Terminal First: Always disconnect the negative (-) terminal of the battery before doing any electrical work.
3. Access the Alternator:
* Location: The alternator's location varies slightly depending on the engine, but it's usually near the front of the engine, often mounted on the engine block or attached to the power steering pump. Consult your repair manual or online resources with diagrams for your specific engine.
* Removal: This typically involves removing various belts (serpentine belt), possibly some bolts or brackets holding the alternator in place. You might need to loosen or remove the power steering pump or other components to get sufficient access. Again, a repair manual will be invaluable here.
4. Removing the Old Alternator:
* Unbolt the Alternator: Carefully remove all the bolts securing the alternator to the engine or bracket.
* Disconnect Electrical Connections: Unplug the wiring harness connector(s) from the alternator. Take note of their placement for reinstallation.
5. Installing the New Alternator:
* Connect Electrical Connections: Plug in the wiring harness connector(s) to the new alternator, ensuring they are securely connected.
* Bolt the Alternator in Place: Carefully bolt the new alternator into its mounting location, ensuring it's securely fastened.
* Reconnect the Belts: Reinstall the serpentine belt or other belts correctly. Make sure the belt is properly tensioned.
6. Reconnect the Battery:
* Positive Terminal Last: Reconnect the positive (+) terminal to the battery.
7. Test the Alternator:
* Start the Engine: Start the engine and check for proper charging voltage (usually around 13.5-14.5 volts). You may need a voltmeter to measure this. If the voltage is low or not charging, there might be a problem with the new alternator or another part of the charging system.
Important Considerations:
* Repair Manual: A repair manual specific to your 2004 Dodge Intrepid is highly recommended. It will provide detailed diagrams, step-by-step instructions, and torque specifications.
* Safety: Working on a car can be dangerous. Always use caution, and if you're not comfortable performing this repair, take your vehicle to a qualified mechanic.
* Belt Tension: Incorrect belt tension can lead to premature wear or alternator failure. Consult your repair manual for the correct tensioning procedure.
Replacing an alternator can be a challenging job, even for experienced mechanics. The difficulty level depends on your mechanical aptitude and the accessibility of the alternator in your specific vehicle. If you are unsure about any step, seeking professional help is advisable.
