Is your Honda Ridgeline battery light on, the car dies when driving, the battery won’t charge, and you are having trouble starting the engine? Learn how to fix the problem by replacing the alternator of your Honda Ridgeline.
Common symptoms indicating a problem with your Honda alternator include:
- The battery light stays on
- Dead battery
- Car dies when driving
- Lights are dim
- Whining and growling noise
- Having trouble starting the engine
What you will need
Access Factory Repair Manuals
The YOUCANIC Pro Manuals offer OEM Factory Repair Manuals with detailed steps and illustrations, comprehensive wiring diagrams, torque specifications, and access to technical service bulletins and OEM service information, mirroring dealership manuals.
- Honda Alternator
- Serpentine Belt
- It is not required, but it is recommended to replace simultaneously.
- Metric Tool Set
- Torque Wrench
- Pry Bar
- Penetrating oil
- Screw Driver
- 14mm Wrench
Follow these steps to change the alternator on a Honda 3.5 L V6 engine.
- Park the vehicle on level ground and let it cool down. If the engine is still hot, you risk getting burned.
- Pull the hood release under the dashboard and open the hood. Secure the hood with the hood support.
- Locate the battery in the engine bay and disconnect the negative battery terminal.
- Spray penetrating oil to the bolts that you will remove, especially if it is the first time the alternator will be replaced. The bolts tend to get rusted and can be difficult to remove otherwise.
- Remove the components blocking your access to the alternator, like the power steering fluid reservoir, the overflow reservoir, and any lines.
- Take a photo or draw the serpentine belt routing, so you will not have difficulty installing it back.
- Use the 14mm wrench with the pipe as an additional handle so you will not have to exert too much force to push it towards the windshield side to release the tension on the belt so you can slide the serpentine belt out. The tensioner socket may not always be 14mm.
- Remove the bracket on top of the alternator. These bolts can rust and break easily. It’s essential to spray penetrating oil on these bolts and wait for at least fifteen minutes before removing them.
- Remove the alternator bolts. Remove the long alternator bolt on the bottom of the alternator.
- Disconnect the positive terminal at the back of the alternator. This is typically a 12mm nut. We had to use a few extensions to break this nut loose.
- Unplug the connector at the back of the alternator. Press the connector, then pull to unplug it.
- You must use both hands to rock the alternator up and down while pulling it up.
- Remove the alternator from the vehicle.
- Slide the new alternator back to its position, install the long bolt, and set the torque to 33 lbs. ft.
- Install the top bolt and bracket of the alternator and set it to 16 lbs. ft.
- Install the new serpentine belt in its original routing position and ensure it is seated on the pulley groove.
- Connect the connector and terminal of the alternator.
- Connect the battery terminal.
- Start the engine and check the voltage. It would help if you were getting between 14.0 and 14.7 volts with the engine running.
Troubleshooting Charging System
One way to determine if you have a faulty charging system is by scanning your vehicle with an OBD-II scanner. One good example of a multi-system scanner is the YOUCANIC Full Systems Scanner. This scanner can read and clear fault codes from all the systems in your Honda. It can also perform bi-directional tests, maintenance and repair resets, etc.
Frequently Ask Questions
How much does it cost to replace a Honda Alternator?
- The average cost to replace a Honda Alternator is between $447 and $800. Labor costs are estimated between $125 and $250, while parts are priced between $350 and $600.
How long does a Honda Alternator last?
- The average life span of an Alternator is about 6 to 10 years. It depends on how many miles the vehicle is driven regularly and how many aftermarket accessories the owner has installed, which may cause the alternator to work overtime.
How to test an alternator?
- Using a voltmeter, connect your positive lead to the battery’s positive terminal and negative charge to the negative terminal of the storm. It would be best to get 14 v to 14.8 v, which means your alternator is working correctly.
- ACURA MDX 2003-2006 3.5L
- ACURA MDX 2007-2009 3.7L
- ACURA RL 2005-2008 3.5L
- ACURA TL 2004-2008 3.2L
- ACURA TL 2007-2008 3.5L
- HONDA ODYSSEY 2005-2007 3.5L
- HONDA PILOT 2005-2008 3.5L
- HONDA RIDGELINE 2006-2008 3.5L
Manufacturer Part Number AS-D219
Interchange Part Number 31100-RDJ-A01,31100-RGL-A01,CSC10,CSD29,AND0339,VND0339
Other Part Number 104210-3100,104210-4290, 104210-4300,104210-4301
Cross Part Number 31100-RGL-A01,31100-RGM-A01,31100-RJA-A01,31100-RJA-A02
Superseded Part Number 31100-RYP-A01,CSD29,CSD30,CSD69,400-52163,400-52252R
There may be more part numbers not included in this list.
- Honda Civic Alternator Replacement Cost – repairpal.com
- Honda Ridgeline 2006 alternator replacement – youtube.com
- Change Alternator Honda Pilot – instructables.com
- Honda Odyssey Alternator Test – youtube.com
We hope you find the Honda Pilot Ridgeline 3.5L V6 Alternator Replacement guide helpful. Check these troubleshooting and repair guides for more help on your Honda.