Thanks for your knowledge. I’m having the same problem, how do you loosen the small belt and how do you adjust it when you put it back. It’s the power steering and water pump belt.
Have you ever taken off the idler sprocket... Mine is worn out because I failed to change the upper tensioner on time. I'm hoping I don't have to remove the cylinder head...
Most likely it will be some where by the flywheel between the transmission & engine area , I haven't searched it but crank sensors those are the most common places for them
