How to Use a Car Jack Properly: A Step-by-Step Safety Guide

Using a car jack is a fundamental skill for vehicle maintenance that every driver should master. It’s crucial for tasks such as changing a tire or doing underbody repairs.

Safety is paramount when raising a vehicle; improper use of a car jack can lead to damage to the vehicle or, worse, injury.

Therefore, it is essential to follow the manufacturer’s guidelines as outlined in the vehicle’s owner’s manual to ensure you position the jack correctly and use the type recommended for your particular vehicle.

A car jack lifts a car's chassis, positioned under the designated lift point, while the handle is turned to raise the vehicle

There are various types of jacks—scissor jacks, floor jacks, bottle jacks, to name a few—and choosing the right one depends on your vehicle and the situation.

A scissor jack, often included with the vehicle, is designed for roadside tire changes, whereas a floor jack could be more suitable for garage uses due to its heavier capacity and better stability.

It’s important to familiarize ourselves with the jack we have, and it should always be maintained in good condition to ensure reliability when the need arises.

Before we begin lifting, it’s critical to park on a flat, stable surface to prevent the vehicle from shifting.

Once the jack is securely positioned at the designated jack points—which are typically near the front rear tires—raising the vehicle can commence.

Should we intend to work under the car, we must place jack stands to support the weight of the vehicle; the jack alone is not safe for holding a car up while anyone is working underneath.

Selecting the Right Car Jack

Selecting a car jack that is suitable for your vehicle is crucial to ensure safety and efficiency in lifting.

Understanding Jack Types and Their Uses

Types of Car Jacks:
  • Floor Jacks: Ideal for garage use, floor jacks are stable and easy to maneuver. They’re well-suited for low profile vehicles and sports cars due to their low clearance.

  • Scissor Jacks: These are simple, compact, and typically included with the car’s spare tire kit. They work well for emergency tire changes and fit easily in the trunk.

  • Bottle Jacks: These hydraulic jacks are shaped like a bottle and offer high capacity lifting. Appropriate for larger vehicles like trucks and SUVs.

  • Hydraulic Jack: Providing more power with less effort, hydraulic jacks are great for heavy-duty use and can lift a variety of vehicles.

Always check your vehicle’s owner’s manual for the recommended jack type and lifting points.

Weight Considerations and Vehicle Support

Choosing Based on Weight Capacity:
  • Weight Capacity: Every jack has a maximum weight limit it can safely support. Always select a jack with a weight capacity that exceeds the weight of your vehicle.

  • Vehicle Support: To safely support the lifted vehicle, use jack stands in addition to the car jack. This will provide added stability and reduce the risk of collapse.

Jack Type Weight Capacity
Floor Jack Typically 1.5 – 4 tons
Scissor Jack Upto 1.5 tons
Bottle Jack 4 – 50 tons
Hydraulic Jack Varies significantly
Note: Trucks and SUVs generally require a jack with a higher weight capacity due to their heavier weights.

Preparing Your Vehicle for Jacking

Before you begin the process of jacking up your vehicle, it’s crucial to ensure that the vehicle is prepared properly to avoid any accidents or damage.

Safety is paramount, so we need to pay careful attention to the location of the jack points and the stability of the vehicle on the ground it’s parked on.

Identifying Safe Jacking Points

Every vehicle has specific jacking points designed to safely support its weight.

Locating these points is essential and can be found in the vehicle’s owner manual. Typically, these are reinforced metal ribs or notches near the wheels.

Using the wrong point can cause damage to the vehicle or jeopardize your safety.

Ensuring Stability on Various Surfaces

When jacking a vehicle, a flat and solid surface is necessary to prevent the jack from slipping or the vehicle from tipping.

If you find yourself on a surface that’s not entirely solid, using a wide, flat board under the jack can distribute the weight more evenly.

Always engage the parking brake before jacking up the vehicle, especially if you have a manual transmission.

Additionally, wheel chocks should be placed against the tires’ opposite end from where you’re lifting. This provides an extra layer of safety to prevent the car from rolling.

If on an incline, it’s even more vital to chock the wheels to ensure stability.

Lifting and Lowering Procedures

Proper lifting and lowering of a vehicle using a car jack are crucial for safety.

Ensuring a stable base and correct placement of jack stands is key to prevent accidents.

Steps for Raising the Vehicle

  • Ensure the car is on solid, level ground to prevent any instability.
  • Locate the vehicle’s lift points as recommended by the manufacturer.
  • Position the jack under the designated lift point ensuring it’s correctly aligned.
  • Using either a screw mechanism or hydraulic force, gently raise the vehicle until it reaches the desired height.

Before proceeding to lift the car, engage the parking brake and place wheel chocks for added safety.

If using a hydraulic jack, make sure to open the relief valve slowly to raise the jack.

Secure Placement of Jack Stands

Action Details
Placement of Jack Stands Set the stands underneath lift points parallel to the jack points.
Lowering onto Jack Stands Carefully lower the vehicle onto the stands, ensuring the weight is evenly distributed.

Always consult the jack stand manufacturer’s guide for maximum weight and proper use.

After ensuring that the vehicle is securely mounted on the jack stands, you can safely work under the car.

Remember, do not rely solely on a car jack to support the vehicle while working underneath it.

Safety Tips and Best Practices

When using a car jack, the primary concerns are to maintain safety and prevent damage to the vehicle.

By adhering to specific guidelines, we can minimize risk and ensure a secure environment for any necessary repair work.

Preventing Accidents and Damage

Identifying Stable Ground: Always park on a hard, level surface to avoid the car tipping. If you’re on uneven ground, the jack may collapse.

Engaging Safety Features: Before lifting, turn on hazard lights to alert oncoming traffic, apply the parking brake, and place wheel chocks.

Proper Jack Placement: Locate the vehicle’s designated jacking points to avoid damage to the car’s undercarriage or slipping of the jack.

Vehicle Preparation: If dealing with a flat tire, partially loosen the lug nuts before jacking up the car. This prevents the wheel from spinning.

What to Do in Case of a Lifting Failure

Stay Calm and Clear the Area:

If the jack fails and the vehicle begins to drop, remain calm, and ensure everyone is clear to prevent injury.

Using Backup Support: Always have a backup support, like jack stands, in place when working beneath a vehicle.

Assessing the Situation: After a failure, assess what went wrong from a safe distance.

Only attempt to re-lift the vehicle if it’s safe to do so.

Seeking Professional Assistance: If unsure, it’s best to contact professional mechanics rather than risk further damage or danger.

Rate this post
Ran When Parked