What is wrong with my Sliding Door script?

I'm working on an onTouched sliding door script, but for some reason when I touch the brick, the Door doesn't slide, it just teleports, and it doesn't teleport to where I want it to stop either. It disappears when I hit the brick.

function onTouched(hit)
	debounce = false
	player = hit.Parent
	increment = 0.1
	if hit.Parent ~= nil and debounce == false then
		debounce = true
		repeat
			wait(0.01)
			pos = 33.5
			script.Parent.Parent.Door.CFrame = script.Parent.Parent.Door.CFrame * CFrame.new(86.222, pos - increment, 85.573) 
			pos = pos - increment
		until
			pos == 18.5
			
		wait(3)
		repeat
			wait(0.01)
			pos1 = 18.5
			script.Parent.Parent.Door.CFrame = script.Parent.Parent.Door.CFrame * CFrame.new(86.222, pos1 + increment, 85.573)
			pos1 = pos1 + increment
		until
			pos1 == 33.5
		debounce = false
	end
end

script.Parent.Touched:connect(onTouched)

since you are using the Door's CFrame, you don't need to add on the extra 86.222 on the X axis or the 85.573 on the Z axis. This is making your door fly off that many pixels from where you want it to be. Replace these values with 0.