A Trailblazer that squeaks only when turning to the left could have a problem with the steering or front wheel bearing. Turning to the left puts the right pressure on the parts to cause them to squeak.
Many things can cause that, the simplest cause being lack of power steering fluid.
Try checking the power steering fluid. My taurus did the same thing until i filled the power steering fluid.
Most likely the steering linkage. (Tie rod ends etc. ) They are short of grease. Have the front end checked. If the parts are original Ford, then you will be unable to grease them, just replace them if they are worn.
Does this squek vary with speed? When stopped and turning right does it squeak? More info is needed
Turning to the right, when going forward, you turn the steering wheel towards the right.
The cause of the squealing sound is because you are turning the steering wheel completely to the right or left
If the sound is a loud growling , whining, noise you're probably low on power steering fluid. Now the cause of the fluids loss is WHERE ?
Power Steering Pump
Power Steering pump my have a leak...
Turning the steering wheel farthest left or right for a few seconds will cause a loud squealing.
When turning a PWC steering cable right it will go left. If you turn it left it will go right.
By turning the steering wheel in an anti clockwise direction.
Steering Diameter Left 36.7Steering Diameter Right 36.7
Bad wheel bearings usually cause a grinding noise, and are known to only cause it when turning.
most grinding noises that come from turning is usually a cv axle that needs to be replaced. Can also be a bad wheel bearing. If you hear the grinding when turning to the right then the left front wheel bearing is bad.
The problem is probably in the steering gear. Clogged passages in steering gear. Leaks in steering gear.
That would be the inside diameter of the circle created by turning the steering wheel completely left or right.
could be control arm bushings gone bad
Power steering belt slipping?
Low power steering fluid or you need a lube job.
It probably needs steering fluid.
probably not the alternator if it happens when only turning its gotta be the power steering or steering rack make sure everything is greased up could be the PS pump going out
The drive shaft may need to be tightened
try turning the steering wheel to the left or right and holding it there while turning the key