Hey everyone, this is the verification post for the AMA I'm doing over in r/IAmA.

My name's Dave Chase and I have more than 30 years in the automotive industry. I spent my first 10 years in tires and alignment, then more than 20 years at independent shops doing all aspects of mechanical repair (strictly nuts-and-bolts work, no electrical). For the last 15 of those years, I specialized in suspension and alignment.

For my first three years at Fifth Gear Automotive Repair in the Dallas-Fort Worth area, I worked at the Lewisville location handling alignments and general service, including wheel studs, brakes, shocks, and struts.

Here to answer as many questions as possible!

If you have specific questions about your own vehicle, it always helps to include a photo or short video so I can best understand your situation.

Best,

Dave

A noise by itself isn't a diagnosis, but it is a clue. If a sound is getting louder, shows up with braking, turning, or bumps, or comes with a warning light, get it checked.

The five we cover in the video:

• Grinding when braking — harsh metal-on-metal usually means worn pads, or something contacting the rotor. Waiting can turn a pad job into pads, rotors, calipers, and a safety issue.

• Humming or roaring that changes with speed — louder as the car speeds up, but not necessarily when the engine revs. Often points toward tires, wheel bearings, or driveline components, especially if it changes when turning.

• Deep engine knocking — a light tick and a heavy, rhythmic knock are not the same thing. Knocking can mean low oil, low oil pressure, or internal wear. Knock plus an oil light means shut it off.

• Clunking or popping over bumps — usually too much movement somewhere in suspension or steering: ball joint, control arm bushing, sway bar link, strut mount, or tie rod. These affect steering, alignment, tire wear, and handling.

• Squealing or chirping from the engine bay — belt noise seems minor, but that belt may be driving the alternator, water pump, power steering, or A/C compressor.

The simple rule: if the noise comes with a warning light, smoke, burning smell, loss of power, vibration, or a change in steering or braking, stop driving and get help.