This indicates that the CV joint it going bad. You'll need to replace it. Most of the time you have to change the entire half shaft.
If it pops when turning it is most likely the CV joints.
Could be a wheel bearing
Front cv joints most likely
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.
Possible causes of popping/grinding noises when turning:Wheel bearingsCV joint / axleBrakesSee "Related Questions" below for more
One cause of a popping noise from the front end while backing up in cold weather is the drive shaft. A mechanic can help find the problem.
A bad bearing can cause can the front end of car to make a squeaking noise when turning steering wheel either direction. It can also be caused by bad suspension.
bad axle joint or ball joints and turn stops can make popping
Check for: worn/seized front end parts & possible driveshaft issues
Inspect the steering components, suspension, and brakes.
ball joints or tie rods
Could be a bad CV joint. It would make a popping noise.