1. Identify your Bronco II's 4WD system:
* Manual Shift (BorgWarner): This is the older system. You'll have a lever, usually located on the floor console, that moves between 2WD (2-wheel drive) and 4WD positions. There may be a separate lever for high-range (4H) and low-range (4L).
* Electronic Shift (often called "Part-Time 4WD"): This system uses buttons or switches to engage 4WD. The exact location and labeling will vary by year. Look for buttons or switches labeled "4WD," "4H," and potentially "4L."
2. Engaging 4WD (General Instructions):
* Before engaging 4WD (Crucial!): Always engage 4WD *before* you lose traction. Shifting into 4WD while going fast on a dry paved surface can cause damage to the drivetrain. Only use 4WD on slippery surfaces like snow, ice, mud, or loose gravel.
* Speed: For most systems, you'll want to be traveling at a low speed (under 20 mph, ideally closer to 0 mph) when engaging 4WD. High speeds can result in drivetrain damage.
* Manual Shift System: To engage 4H (high-range 4WD), simply move the floor lever to the appropriate position. For 4L (low-range 4WD), shift the lever fully into 4L. Low range should only be used for slow, off-road driving.
* Electronic Shift System: Locate the 4WD buttons or switches. The process typically involves pressing a button to shift into 4H. A separate button or switch may be used for 4L (if your vehicle has that option). Consult your owner's manual for the precise procedure for your vehicle's year and model.
3. Important Considerations:
* Owner's Manual: The single best source of information is your Bronco II's owner's manual. It will provide precise instructions and diagrams for your specific model year and 4WD system.
* Shifting on the fly: Some Bronco IIs allow for shifting into 4H on the fly (while driving), but *never* shift into 4L while moving. Always stop completely to engage 4L.
* Drivetrain Damage: Misusing the 4WD system can cause serious and expensive drivetrain damage. Pay close attention to the correct procedures.
* Indicator Lights: Many Bronco IIs have indicator lights that illuminate on the dashboard when 4WD is engaged. This provides visual confirmation.
Without knowing the specific year of your Bronco II, this is the most general advice I can offer. Consult your owner's manual for the most accurate and safe instructions.
