It's crucial to get the right kind of straps or chains designed for engine lifting. They should be properly rated for the weight of the engine (which is quite substantial) and have enough length to allow for safe and controlled movement. Using the wrong equipment could be extremely dangerous.
You might also need additional support depending on the hoist and the access you have to the engine bay. Some people use a transmission jack in conjunction with an engine hoist to provide more stability during the removal.
Important Note: A 2002 Jeep Liberty did *not* come with a 3.6L engine. If you are working on a Liberty with a 3.6L, it's a swapped engine, and the removal process might need adjustments based on how it's been installed. Double-check the engine's specific mounting points and any modifications made during the swap. Always consult a repair manual specific to your vehicle's configuration.