Finding clunking and popping noises are without a doubt one of the most time consuming jobs an auto technician has to face. Sure some noises just require a simple suspension and steering inspection to find worn bushings, tie rods or ball joints but many other times it's not that simple. While driving, it's important to notice when the clank or rattle noise occurs, this will be a clue. If the noise only is heard over bumps, it will most likely be something in the suspension. If the noise is only heard on turns, the problem will most likely be in the steering system.
Creak On Sharp Turns in Parking Lot
The most difficult noise that I had to find was several years ago, it was a creaking noise from the back of the car on sharp turns at parking lot speeds. This car had been to several other shops before I looked at it. Needless to say many parts had been installed without any success of silencing the noise. I first started by checking the torque on ALL of the bolts on the suspension. I knew it wouldn't be that easy, but you have to start with the basics. By using an electronic listening device I was able to narrow down my search for the creak. It appeared as though it was going to be something with the uni-body. Uni-body noises are more likely to be in cars that were previously wrecked. Since this car was never in an accident, I kept looking. I removed the rear seat and went on another test drive. The noise was louder! Behind where the back seat cushion goes, there was two cross support braces bolted in. This was the problem, one of the bolts was slightly loose, allowing the uni-body to flex just enough on sharp parking lot turns to make the noise.
Repair Tip Secrets - Look For The Following
- Worn bushings, ball joints or tie rod ends.
- Rust around bolt heads or washers (accelerated rust may indicate movement).
- Check and lubricate steering stops at control arms to steering knuckles.
- Loose items in the car or trunk.
- Loose lug nuts.
- Loose battery hold down.
- Missing exhaust hangers.
- Worn motor mounts.
Lifetime Lube
Most older vehicles had grease fittings that were lubricated or greased as part of an oil change; that's why we called it a Lube Oil & Filter. Most steering and suspension parts today are lifetime lubricated. Meaning they are not greased for the duration of their usefulness. If the parts start making noise they are just discarded and replaced. They can be good otherwise, so it's important to know they don't have to be worn out or have excessive movement to make noise.
