'21 BS Outerbanks, Fan rattling sound on D(rive)

[NewStockyBalboa]

Hello everyone,

I’m having an issue with my 2021 Bronco Sport Outer Banks (about 80k miles).
When the vehicle is in Drive and stopped at a red light, I hear a rattling noise at idle or under ~2,000 RPM. The sound seems to be coming from the front of the vehicle, possibly the radiator / cooling fan area.

The noise goes away as soon as I start accelerating and only happens while stopped in Drive. It does not occur in Park or while driving.

Has anyone experienced something similar or have ideas on what to check?
Thanks in advance.

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[incavulator]

Sounds like perhaps an exhaust heat shield where the weld has come loose. I have not had this problem on my BS, but have had it on several other Ford products. You'd really have to (CAREFULLY and SAFELY!) have someone look under it while this is happening to find the source. This is best done on a hoist with all wheels off the ground.

 

[thomasm23]

Hello everyone,

I’m having an issue with my 2021 Bronco Sport Outer Banks (about 80k miles).
When the vehicle is in Drive and stopped at a red light, I hear a rattling noise at idle or under ~2,000 RPM. The sound seems to be coming from the front of the vehicle, possibly the radiator / cooling fan area.

The noise goes away as soon as I start accelerating and only happens while stopped in Drive. It does not occur in Park or while driving.

Has anyone experienced something similar or have ideas on what to check?
Thanks in advance.

Check the air box for a rattle. The 3 rubber grommets that retain the air box are known to come out and become missing.

 

[thewolfpup]

Yes, I had the same thing. I agree it is the air intake box. I put a cold air intake on mine and put a grommet in the front hole to stop it from vibrating and that all goes away then.

 

[94gradywhite]

I agree. Good place to start. Had this happen to me. Btw this needs to come out for one recall and if you replace your battery.

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