Common Questions from Jeep Consumers

July 18th, 2018 by

Kendall DCJR Jeep Off-road Questions

Although a driver may know a significant amount about their beloved Jeep, it is still okay to have some questions. Here posted are some popular questions regarding driving a 4×4 Jeep and operating the vehicle’s systems.

4×4 Driving Questions

What is the difference between all-wheel drive, full-time and part-time 4×4 systems?

All-wheel drive systems are perfect for those who have to drive to work but also like to take the time to adventure off-road. Comparable to a full-time 4×4 system, an all-wheel-drivetrain is always actively sending torque to all four wheels. All-wheel drive works especially well on roads, but its abilities off road are not as great as a full-time 4×4 system. The reasons as to why full-time 4×4 systems are better for off-road experiences are their efficiency and effortless tactics of cruising through terrains like snow or dirt. Full-time 4×4 systems use either a center differential system, that helps consumers choose which axle of the four wheels to send torque to, or the clutch, to send torque to the front and rear wheels when making turns at different speeds.

Part-time 4×4 systems can either be operated using two-wheel drive or four-wheel drive. Two-wheel drive is the default for part-time 4×4 systems, but this makes it much simpler to drive on pavement with normal driving conditions, such as driving to work or dropping children off at school. When it’s time for the journey off-road, a part-time 4×4 system has the capability of locking the front and rear driveshafts, making the Jeep significantly easier to manage while off road. A tip to always keep in mind while switching back and forth from two-wheel drive to four-wheel drive is to not do it too often, because by consistently doing this it can lead to parts failure from overheating.

Why can’t you use a part-time 4×4 system on dry surfaces?

The ultimate reason why a part-time 4×4 system can’t be used on a dry surface is doing so will result in the overheating of parts and, ultimately, failure. Say a driver does decide to try and drive on a dry surface with their part-time system – the part-time system will lock the front and rear axles so that all the wheels are running at the same speed. “Crow hopping”, which is what happens when turning on dry surfaces, also car shakes or “shudders” can occur at any point while driving and using a part-time 4×4 system, and is a sure sign that the car is going to have an early part failure if the drive continues.

4×4 Systems Questions

Does the vehicle need to be parked or moving to operate the Quadra-Lift® Air Suspension or Selec-Terrain® system?

Simply put, both the Quadra-Lift Air Suspension and Selec-Terrain system can be in use when either moving or parked. It can be used while parked or moving because the suspension actually lifts the vehicle allowing for additional clearance while driving through harsh and rocky terrain. The ability to manually shift in height is also available when in motion.

When do I use the 4×4 High-Range mode?

The 4×4 High-Range mode is used for when more traction is needed. For example, if you need more traction over surfaces like rocky roads and need to go faster than 25 mph.

How do I climb over rocks and other obstacles?

The term for climbing over rocks and other obstacles like rocks is called “crawling” for a reason. In order to “crawl”, drivers are going to have to follow these steps. First, be sure to use low-range 4WD and low gear and then let the vehicle simply crawl, like it does on its own when idle, travelling forward at a very low speed.This technique is perfect for rocks and logs. Keep in mind, when approaching or going over a large rock, make sure to raise the vehicle with the Quadra-Lift Air Suspension System to the appropriate height to safely pass. If the rock is too big or too high, then it would be best to take a different route and avoid going over it. Otherwise,maneuver the vehicle to the very top and over the rock very slowly. To improve traction of tires, drivers can reduce the tire pressure about three-to-five pounds; this will also help to avoid any punctures to the tires from the rocks and jagged terrain.


Want to test out a Jeep 4×4 system for yourself? Come to Kendall DCJR and ask for a test drive today!

Photo Source/Copyright: Jeep