your axle is coming off
If it is a front wheel drive sometimes a bad cv joint can cause a popping sound when you are turning.
sounds more like a CV joint because of the popping, although wheel bearings do make noises like that when they are worn.
could be a tie rod
A front popping on the left of a 98 Blazer could be the brakes, steering, or wheel bearing. Check all three to find the cause.
popping sound will be caused by either bad wheel bearings or worn tie rod ends
Grinding noises, wandering steering, strange tire wear.
Anti lock system maybe If this is a front wheel drive vehicle you may have a cracked axle,,,,,causing the popping noise when turned and under hard braking.
The popping sound could be a couple of things first off is your wheel tight? check lug nuts. Some of other causes may be damaged rotors and pads. check them by removing wheel and looking for damaged parts or worn out pads. other things could be front wheel dive axle CV joint but you would hear this when turning also.
Check for: worn/seized front end parts & possible driveshaft issues
There are several things that could be causing this noise to come from your front wheel well. You could have a faulty wheel bearing, a brake could be dragging, or a hub is rubbing.
A grinding and popping sound from the front left wheel could indicate several issues, such as worn brake pads, a damaged wheel bearing, or a problem with the suspension components. If the brake pads are worn down, they may grind against the rotor, while a failing wheel bearing can create a popping noise as it loses stability. Additionally, loose or damaged suspension parts, like struts or control arms, can cause similar sounds when driving. It's essential to have the vehicle inspected by a mechanic to diagnose and address the issue promptly.
If it is a front wheel drive vehicle it could be a bad CV joint. In a rear wheel drive car it could be a bad universal joint.