Very loud clicking noise at startup

[StOfAkina]

Hey Guys!
So, I have a 2014 Fiesta ST. I have no idea what might be causing this insanely loud buzzing/clicking thing to happen, but every time I start the car, after about 15 seconds, it does this super loud buzzing. I was able to record it so you guys can watch the video and see what I mean.
It doesn’t seem to be mechanically related at all, at least, the car idles perfectly even when it’s buzzing. I know in some cars, if there is a weird buzzing or electrical issue, the car can kind of jug at start up, until it goes away (like with squeeling accessory belts). I was thinking maybe it’s audio related? I honestly cannot tell if it’s coming from the speakers, or the dashboard, it’s just that raw and loud.
What do you guys think it could be? Is this a common issue? It doesn’t ever come back after the first initial buzzing, until you start the car again. Car runs great, low miles. Any help would be great!

 

[Questionable]

Huh. From your description I assumed the video would be of another blend door actuator failure, but that's a buzz more than a pop-pop-pop of a typical actuator failure. It could be audio related, but we don't have speakers in the dash or A pillar.

Could you try starting the car with the door open to see if that helps you figure out where the sound is coming from?

 

[SteveS]

That sounds like the Mode Door actuator. I just had to replace one. Unlike the blend door, which click, it makes the kind of noise in your video.

• SKU: BE8Z19E616B
• Other Names: Motor, Motor Assembly
• Description:
  2014-19, # 3. 2011-13, mode door.
• Notes: PARTS: Part included with AC & heater assembly.
• Sold In Quantity: 1

 

[HardBoiledEgg]

HOLY SPOON FEED BATMAN

LET THE GUY FIGURE IT OUT ON HIS OWN A LITTLE

 

[StOfAkina]

That sounds like the Mode Door actuator. I just had to replace one. Unlike the blend door, which click, it makes the kind of noise in your video.

• SKU: BE8Z19E616B
• Other Names: Motor, Motor Assembly
• Description:
  2014-19, # 3. 2011-13, mode door.
• Notes: PARTS: Part included with AC & heater assembly.
• Sold In Quantity: 1

Sounds like you had an issue very similar to mine. I will replace that and update you if it worked. Thanks a ton!

 

[haste]

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