2009 hyundai front left suspension noise when going over bumps

There is something wrong with one of your tires. Take it to a tire repair place soon before it leaves you stranded. My guess: a tire has a big lump on it which will blow soon.

First, have the tire inspected before you do any expressway driving. you could have a damaged tire with a tread or internal ply separation. second, inspect the front shock absorbers, it sounds like the left front shock has failed and lost its hydraulic fluid. third have the front steering linkage and front suspension checked for worn or loose tie rods, idler arm, ball joints and stabilizer bar links. do this ASAP as you don't want to have the tire fail or any parts break while you are driving!

indicates that lower suspension rubbers are broken and should be inspected by an accredited front suspension professional service center

that could definitely be your tire rod, and suspension would do that too check your tire rods because that is what happened to my truck

bad suspension in the rear

See if you can bounce car and replicate the noise. If you can, you should be able to find it, and put your hand on it. Stabilizer bushing are a place to look, both at the lower a arm and on the frame. If you narrow it down to the strut, it will need to be replaced. The front trans mount also goes bad, try putting it in drive with your foot on the brake and give it some gas and see if the engine moves an excessive amount.

There are a few suspension parts that can cause knocking noises. Such as swar bar loose, strut mounts going bad. You should really have a shop do a complete suspension check.

Have you tried driving over a bump whilst also applying the brakes? (Right foot on gas, left gently on brake - with no one behind you!) If the noise goes away, then it could be the brake pads that are not fitted correctly. Only posting this, as this just happened to mine...the mechanic took it over bumps and noise was there. Applied brakes whilst going over bump, noise went away. Replaced badly fitted rear pads (had been bodged by another garage) and the problem was solved.

My guess is a strut bushing/bearing, but have your front end checked out by good shop to make sure it isn't something else more dangerous.

Sounds like your left front wheel bearing is going bad. When you make a right turn, or compress the right front suspension over a bump, it forces the car to roll to the left. This loads the suspension on the left side, which will exaggerate a wheel bearing problem. Are you hearing the noise at all when travelling on the highway in a straight line? If so, it'd be either a grinding sound or a hollow humming noise. If you aren't, it may be that the bearing is just starting to go bad.

A quick test to see if the bearing is bad is to jack the car up at that corner, grab the wheel at the top and bottom, and shake it hard - if there is any movement or looseness, your bearing is shot. If there is none, it doesn't mean the bearing is fine, but it could be that it's just starting to go bad (which would be why you only hear it in turns and bumps, but not straight-line yet).