Skip to content Skip to navigation menu

Your Selected Vehicle

Brands

Show More Show Less

Price

Parts for your 2012 Holden Colorado-Alternator

Sort by
OEX Alternator 12V 80A Denso Style - DXA519
OEX

OEX Alternator 12V 80A Denso Style - DXA519

Confirm Vehicle
$410
Fitment Notes:
See More

Explore 4WD & Adventure

OEX Alternator 12V 80A Denso Style - DXA515
OEX

OEX Alternator 12V 80A Denso Style - DXA515

Confirm Vehicle
$542
Fitment Notes:
See More
OEX Alternator 12V 80A Denso Style - DXA555
OEX

OEX Alternator 12V 80A Denso Style - DXA555

Confirm Vehicle
$405
Fitment Notes:
See More
OEX Alternator 12V 80A Bosch Style - BXA056
OEX

OEX Alternator 12V 80A Bosch Style - BXA056

Confirm Vehicle
$432
Fitment Notes:
See More
OEX Alternator 12V 55A Denso Style - DXA465
OEX

OEX Alternator 12V 55A Denso Style - DXA465

Confirm Vehicle
$352
Fitment Notes:
See More
OEX Alternator 12V 70A Denso Style - DXA478
OEX

OEX Alternator 12V 70A Denso Style - DXA478

Confirm Vehicle
$585
Fitment Notes:
See More
OEX Alternator 12V 90A Denso Style - DXA516
OEX

OEX Alternator 12V 90A Denso Style - DXA516

Confirm Vehicle
$384
Fitment Notes:
See More
Showing 1 - 39 of 3047 products

2012 Holden Colorado: Alternator Maintenance and Replacement Guide

If you're driving a 2012 Holden Colorado, it's essential to keep an eye on the health of your alternator. The alternator is a vital component in your vehicle's electrical system, responsible for charging the battery and powering electrical systems while the engine is running. Regular maintenance and timely replacement can prevent unexpected breakdowns and ensure the longevity of the electrical system.

Here are some crucial pointers about maintaining and replacing the alternator in your 2012 Holden Colorado:

  1. Recognising Signs of Alternator Trouble: One of the first indicators of a failing alternator is dim or flickering lights. You might also notice unusual noises like a grinding or whining sound coming from the engine. A dead battery, frequent stalling, or trouble starting the engine can also suggest alternator issues. If the battery warning light on the dashboard turns on, it's a clear signal that your alternator needs attention.
  2. Regular Maintenance: Conduct routine checks on your alternator, particularly if you notice any of the signs mentioned. Checking the tension and condition of the serpentine belt connected to the alternator is vital, as a worn or loose belt can lead to insufficient charging. Inspect the alternator for any loose or damaged connections and ensure the electrical connections are clean and free of corrosion.
  • Battery Testing: Often, alternator issues may eventually affect battery performance. Regularly test the battery to ensure it's in good condition. If the battery consistently tests poorly, even after charging, the alternator might not be charging it adequately.
  • Electrical System Check: Run a comprehensive check of the vehicle's electrical system. This helps identify if an alternator problem is causing other issues such as power windows or audio systems behaving erratically.

Choosing the Right Replacement: If you need to replace your alternator, ensure you choose the correct type for your vehicle model. Using a high-quality alternator is crucial for the performance and reliability of your Colorado. Consult your vehicle's manual or consult a professional mechanic to select the right part. You have the option of either a brand-new alternator or a reconditioned one, depending on your budget and preference.

Installing a new alternator can be somewhat complex and might require professional assistance if you're not familiar with car maintenance. However, for those opting for DIY, ensure the vehicle is parked safely with the engine off and disconnect the battery before starting work.

  1. Safe Practices: If you choose a DIY approach to replacing the alternator, practice safe wrenching techniques. Disconnect the negative battery cable to avoid any electrical shocks and have the right tools on hand. A service manual specific to your vehicle model can be incredibly beneficial throughout this process.
  2. Testing Post-Installation: Once the new alternator is installed, reconnect the battery and start the engine. Test the system by turning on several electrical components to ensure the alternator is charging the system properly. If issues persist or the battery warning light remains illuminated, further diagnostics with a professional may be necessary.

Ultimately, whether you're tackling alternator maintenance yourself or opting for a professional service, the key is ensuring your vehicle's alternator remains in good working order. Keeping up with regular maintenance checks and prompt replacement when necessary will keep your 2012 Holden Colorado running smoothly and reliably. If you're ever in doubt about what your vehicle needs, consulting a trusted mechanic or automotive technician is always a wise choice.