ok so about a month and a half ago i bought a 1989 ford ranger XLT single cab with the 2.9 L V6 and within the past few weeks the belts have been squeeking horribly so i check under the hood and the belt that is connected to the alternator and engine seemed very loose. how do i tighten the belt, and if it doesnt work how do i replace it. also there is a weird low pitched whine when i turn the steering wheel so i checked the power steering fluid and it was low so i added some and it stil makes the noise just not as loud as before so im wondering does the power steering belt need to be tightened also and would it be the same as the alternator belt