Two birds, one stone. (two minor problems, 1 post)

[iKrea]

Motor noise :

Light: https://youtube.com/shorts/utYezobljBg?si=VgcARsxW9_qJHQa

Hey guys, i’m back on here in need of some more help from my favourite community. I’ve been trying to pin point this noise in my engine bay, it’s this whistling sound that strictly happens when the car is idling and getting to normal temp, it only happens at i’d say 75-85° celsius and lasts for about 3-5 minutes, then when the motor gets to regular idle temp the sound stops, this sound only happens when the motor is warming up and I could be slowly driving or leaving before my motor gets to idle temp but when it reaches that mark and i’m stopped at a red light or something the sound almost feels like it has to happen and then it stops for good no matter what. This has been happening for a good good while now but i’ve decided to ignore it since it hasn’t caused me any problems as far as I could tell.

IM ATTACHING A VIDEO FOR BOTH ISSUES

SECOND problem, i can’t figure out why my right turn signal is slightly flickering whenever i’m hitting bumps or anything

 

[GregBelleville]

A whistle that goes away as the engine warms up sounds like it could be an exhaust leak. One way you can check for an exhaust leak which isn't too difficult is to take a shop vac, put the vacuum hose on the side of the vac that blows rather than sucks and stuff the hose up the tail pipe and tape it off so it's sort of sealed.

Now you can turn the vac on and blow air through your exhaust. To check for leaks you can take a spray bottle with soapy water and start spraying it around the exhaust manifold, headers, etc to see if you find any bubbling indicating your leak.

The turn signal could be a bad ground maybe, I'd double check for loose or corroded ground wires.

 

[Moglocker]

Motor noise :

Light: https://youtube.com/shorts/utYezobljBg?si=VgcARsxW9_qJHQa

Hey guys, i’m back on here in need of some more help from my favourite community. I’ve been trying to pin point this noise in my engine bay, it’s this whistling sound that strictly happens when the car is idling and getting to normal temp, it only happens at i’d say 75-85° celsius and lasts for about 3-5 minutes, then when the motor gets to regular idle temp the sound stops, this sound only happens when the motor is warming up and I could be slowly driving or leaving before my motor gets to idle temp but when it reaches that mark and i’m stopped at a red light or something the sound almost feels like it has to happen and then it stops for good no matter what. This has been happening for a good good while now but i’ve decided to ignore it since it hasn’t caused me any problems as far as I could tell.

IM ATTACHING A VIDEO FOR BOTH ISSUES

SECOND problem, i can’t figure out why my right turn signal is slightly flickering whenever i’m hitting bumps or anything

I’d be more worried about the knocking

 

[iKrea]

I’d be more worried about the knocking

Oh yeah i know about that, not much I can do for now, read that it’s piston slap, it quiets WAYYY down when my motor is all up to temp

 

[iKrea]

I’d be more worried about the knocking

If I warm up my car for a little you genuinely can’t hear any knock