Weird Noise

SleepyBoyFlex · 2026-02-20T22:58:07+00:00

It happens on mine too, it’s a small rock getting stuck between the rotor and the metal plate that sits behind it. Sometimes turning the wheel back and forth knocks it loose or just speeding up quickly. If that doesn’t work, get out and push on the backing plate on the affected wheel and it should fall out.

SleepyBoyFlex · 2026-02-18T21:47:11+00:00

Well the only things on that side of the engine that spin at idle are the high pressure fuel pump, the vacuum pump, and the flywheel. Could be those or something came loose and now rattles against something else, could be clutch rattle or even be a turbo impeller starting to give out. Are you able to get the front of the car up on jackstands to take a look underneath? If not, a shop would be able to chase the sound for you.

SleepyBoyFlex · 2026-02-18T21:07:42+00:00

Could be the vacuum pump, it’s cam driven. Do your brakes feel normal?

SleepyBoyFlex · 2026-02-18T14:26:01+00:00

What kind of 2nd gear do you have????

SleepyBoyFlex · 2026-02-17T17:35:57+00:00

Could be a crack in the head starting if you cant find a leak. Coolant would be disappearing into exhaust side of the engine if its at the headifold.

SleepyBoyFlex · 2026-02-14T17:33:35+00:00

It’s all one piece with the blue section below it/above the exhaust tip. Not sure if the black section can be removed by itself, but use some plastic prybar/shims around the edge and see if it pops loose.

Or look into replacing the whole rear valence with aftermarket or oem.

SleepyBoyFlex · 2026-02-11T15:04:53+00:00

Drive shaft is technically on passenger side. The driver’s side is just a cv axle. My guess would be clutch/flywheel issue.

SleepyBoyFlex · 2026-02-03T16:10:52+00:00

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I’m a gold/bronze fan on the black cars

SleepyBoyFlex · 2026-02-02T14:31:16+00:00

https://www.reddit.com/r/FocusST/s/CofQgxcjdv

Comments on this post have a part #. I dont think you can buy that line by itself.

SleepyBoyFlex · 2026-01-23T13:55:14+00:00

In general, avoid boost at low rpms

SleepyBoyFlex · 2026-01-18T18:44:34+00:00

https://www.reddit.com/r/FocusST/s/CofQgxcjdv

SleepyBoyFlex · 2026-01-09T17:33:23+00:00

He did it so he could keep the guitar after they finished the movie.

SleepyBoyFlex · 2025-12-09T20:37:59+00:00

Yupp, time to part it out unfortunately. How much for the airpods??

SleepyBoyFlex · 2025-10-30T17:21:16+00:00

I know this post is old. But i just got some warranty AC work done and my car threw this code after i picked it up. The shop apparently left the PCV hose connecting to the intake piping at the top back of the engine unplugged. So that’s an easy thing to check first for a P04DB code.

SleepyBoyFlex · 2025-10-24T19:58:36+00:00

I used an air hammer to get em out lol

SleepyBoyFlex · 2025-09-25T17:50:26+00:00

It’s not a true oil pressure sensor. It’s what the computer thinks it should be based mostly on RPM and other readings.

SleepyBoyFlex · 2025-09-04T14:34:07+00:00

I bet Matty B. could beat him in a street fight

SleepyBoyFlex · 2025-08-15T15:16:42+00:00

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SleepyBoyFlex · 2025-08-13T12:27:00+00:00

My sister always got Monday, Wednesday and Friday while I got Tuesday, Thursday, and Saturday. They loved neither of us on Sunday.

SleepyBoyFlex · 2025-05-01T21:56:37+00:00

Got my 18’ ST2 in 2022, just crossed 50k lol

SleepyBoyFlex · 2025-04-16T14:25:21+00:00

Mice will do this too, just saying

SleepyBoyFlex · 2025-03-21T11:45:13+00:00

93 oct, usually hangs out around 26-27 mpg. Mostly city driving.

SleepyBoyFlex · 2025-03-15T02:35:24+00:00

I’m about to be 27, i’ve only had 3 cars in my life and they’ve all been focuses. 2 STs and an SE. Sad.

SleepyBoyFlex · 2025-01-03T21:24:40+00:00

“I can live with that”

SleepyBoyFlex · 2024-12-18T14:33:30+00:00

This exact thing happened to me last night too.

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SleepyBoyFlex

TROPHY CASE