Said It Here

Car making weird noises after getting serviced

New rattles, clatters, or pops appearing immediately after a mechanic visit usually stem from loose components or unfinished reassembly during the repair. This unexpected transition leaves drivers questioning if their vehicle is actually safe to drive and worried that the shop made a mistake.

Overview
People affected12 accounts across 2 forums
Workarounds found9 items attempted
Community agreement16 total upvotes

What the numbers show

Counted from the threads quoted below. How we count

  • The most recent one is from October 2026.
  • This comes up 9.7× more often in r/AskMechanics than across the site as a whole.

What people tried

Every workaround mentioned in the threads below. We haven’t tested any of them — and nobody here is claiming they worked.

Found another way around this?

Share your steps and trade-offs so fellow engineers don't have to reinvent the wheel. No account required.

  1. 1
    checking for loose components like heat shields
    Did this help you?
  2. 2
    monitoring how the car drives
    Did this help you?
  3. 3
    Taking apart the pads and rotors to re-lubricate them
    Did this help you?
  4. 4
    Guessing the source of the sound based on dashboard lights and component locations
    Did this help you?
  5. 5
    Checking fluid levels such as power steering fluid
    Did this help you?
  6. 6
    Inspecting the brake pads or having a shop perform a free brake inspection
    Did this help you?
  7. 7
    Ignoring the sound if the brakes stop fine and feeling normal
    Did this help you?
  8. 8
    asking for opinions on online forums like Reddit
    Did this help you?
  9. 9
    posting video clips of the engine bay for community diagnosis
    Did this help you?
Tried another approach not listed above?+ Share your workaround ↑

In their words

Unedited, grouped by where they were said, most upvoted first within each place, each linked to the thread it came from.

r/MechanicAdvice7 people · September 2026

“After replacing the clutch, flywheel and tob the startup is different i’m not sure why maybe i’m paranoid but it feels different.”source ↗

EastAdhesiveness7931 · r/MechanicAdvice · 3 upvotes

“This morning, after picking up the car and driving it, I noticed an intermittent rattling noise that seems to come from the front right part of the car.”source ↗

“Am I being paranoid about the noise? I mainly just care if the car is safe to drive.”source ↗

A_person_in_a_place · r/MechanicAdvice · 1 upvotes

“Now, when the car is running and in park. When I press on the brakes it makes this clicking/thumping noise.”source ↗

throwaway-01621 · r/MechanicAdvice · 1 upvotes

“Everytime I release my foot off the brakes I hear this moaning sound.”source ↗

“When I come to a complete stop while going very slow I hear it.”source ↗

“When I lift up my foot from the brake pedal fast I hear like a bounce sort of hum as well.”source ↗

“I took the pads and rotors off from the front again and put them back lubricated what needed to be lubricated and what not and I'm still hearing it.”source ↗

TheBestintheWest11 · r/MechanicAdvice · 1 upvotes

“I noticed when turning the car off that it makes this ker krnk sound. Just started today. What could this be?”source ↗

“I open my car door and heard the same noise.”source ↗

“The noise does not appear to be coming from the door. It's closer to the dash/steering.”source ↗

monzano00 · r/MechanicAdvice · 1 upvotes

“I feel like it's coming from my alternator because I also just got a new light on my dash which is a red battery icon.”source ↗

“It started not too long ago and I'm very worried.”source ↗

“There's no codes about it so I'm very confused.”source ↗

kukitachi · r/MechanicAdvice · 1 upvotes

“Hi everyone I'm desperate for an answer I have an 2015 Nissan rouge SL. so I just got my rear differential replaced and rear my axle shaft replaced as well.”source ↗

“Now it's making noise after three days of driving it, it came out no where.”source ↗

“It's like a popping noise with a clanking noise to it. Sometimes it also makes a whirling noise but not loud. But the popping sound is loud.”source ↗

“Idk what to do, maybe it's something loose or not tighten all the way. I don't want nothing to fail everything, is new. And it's expensive could someone help me figure out the noise could be ???”source ↗

youdontknowme-n-idku · r/MechanicAdvice · 1 upvotes
r/AskMechanics5 people · September 2026 – October 2026

“I put the new joint on and it felt like it clicked into place ok - it wouldn't come off with a firm tug so I'm sure the circlip has locked.”source ↗

“But since putting it back in I've got this loud clunk noise. It happens every full rotation of the wheel.”source ↗

“I'm a bit of a newb so I might have got something wrong”source ↗

OkSpinach2113 · r/AskMechanics · 2 upvotes

“Replaced my pads and rotors today and noticed a whooshing sound when I depress the brake pedal.”source ↗

Ferrari-murakami · r/AskMechanics · 2 upvotes

“I had my front brakes calipers and rotors replaced about a month ago and now whenever I hit a bump I hear almost like a clatter sound from under my front driver side tire.”source ↗

“I can slightly shake my brake back and forth on the rotor on both front tires (back ones are both stiff and don’t move) no noise comes from the passenger side.”source ↗

“whenever the car sits for a bit (usually a few hours) when I go in reverse and hit my brakes they will make like a pop sound when I initially touch the brake and once I get to a complete stop.”source ↗

18mantan · r/AskMechanics · 1 upvotes

“On the weekend, my back passenger tire started leaking, so on Monday I got my tire replaced. On Tuesday, my driver side back tire went leaky and so I got it replaced on Tuesday. The same day, after some driving I noticed this terrible sound.”source ↗

“The sound is coming from my passenger tire that I got replaced on Monday, though.”source ↗

“I need to know how I can fix this so I can move on with my life without destroying my car.”source ↗

GortenNort · r/AskMechanics · 1 upvotes

“I’m starting to hear some odd noises coming from my engine bay and I’m not sure what it is and how worried I need to be”source ↗

Neat-Strategy-3007 · r/AskMechanics · 1 upvotes

Where this came up

People with this problem also raised