2.3L Eco-Boost Tech This section is for technical discussions pertaining specifically to the Eco-Boost variation of the 2015+ Ford Mustang.

Ecoboost cold start engine noise

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Old Mar 3, 2020 | 12:54 AM
  #1  
Jayo31's Avatar
Jayo31
Thread Starter
 
Joined: Mar 2020
Posts: 1
From: NY
Default Ecoboost cold start engine noise

Hey everyone,

I recently purchased a 2016 Ecoboost. I love the car but i have noticed on cold starts the car makes a strange noise until the engine is warm, at which point it stops. The car runs fine, there is no engine stalling or loss of power. The car shifts fine. While the engine is still cold, the sound can only be heard on idle, when i accelerate the noise goes away until I come back to a stop. All of the gauge readings are normal.

Any help would be appreciated.
Below is a clip of the noise


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Old Jan 16, 2023 | 08:26 PM
  #2  
Crazy Fred's Avatar
Crazy Fred
 
Joined: Nov 2022
Posts: 9
From: IN
Default

could be carbon build up on the intake valves.
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