Flapping noise at high speeds under passenger seat.

[Kerrdog43]

I had a flapping noise at high speed (+60 mph) coming from exterior under the car between passenger and front seat. Had the same issue on my 2017 MKZ. Crawled under and notice there is a section of the black felt noise reduction cover that is not attached to the car. It’s a section about 6 inches long that catches the air and causes the cover to bang against the bottom of the car. This section was never attached underneath the car. I drilled a small hole into the cover, ran 2 zip ties up to a preexisting hole on the frame between the passenger and back door. This secured/tightened the panel and a test drive confirmed the fix. No more flapping at high speeds. It’s obviously a design flaw. Easy to fix but shouldn’t have to on a “luxury” SUV.

 

[bbf2530]

I had a flapping noise at high speed (+60 mph) coming from exterior under the car between passenger and front seat. Had the same issue on my 2017 MKZ. Crawled under and notice there is a section of the black felt noise reduction cover that is not attached to the car. It’s a section about 6 inches long that catches the air and causes the cover to bang against the bottom of the car. This section was never attached underneath the car. I drilled a small hole into the cover, ran 2 zip ties up to a preexisting hole on the frame between the passenger and back door. This secured/tightened the panel and a test drive confirmed the fix. No more flapping at high speeds. It’s obviously a design flaw. Easy to fix but shouldn’t have to on a “luxury” SUV.

Hi Kerrdog. Your 2020 Aviator has a 4 year/50,000 mile New Vehicle Warranty. Call the Service Department at your Lincoln Dealership and tell them about the problem. They will either tell you to bring it right in so the proper fasteners can be installed, or will set up an appointment to bring it in.

Out of curiosity, did you purchase your Aviator and MKZ new, or used?

Let us know how you make out and good luck.

 

[Kerrdog43]

Hi Kerrdog. Your 2020 Aviator has a 4 year/50,000 mile New Vehicle Warranty. Call the Service Department at your Lincoln Dealership and tell them about the problem. They will either tell you to bring it right in so the proper fasteners can be installed, or will set up an appointment to bring it in.

Out of curiosity, did you purchase your Aviator and MKZ new, or used?

Let us know how you make out and good luck.

Both were new cars. My company uses Ford and Lincoln for our company cars. I had the same issue with my Ford 500. I will point it out when I take it in for its next service appointment. Maybe they can attach a fastener. Not optimistic since the service department told me for years that they couldn’t replicate the “noise” when they test drove it. Although everyone who rides in my car ask me what’s that noise? My guess is the mechanic never took it out and drove above 60 mph.

 

[bbf2530]

Both were new cars. My company uses Ford and Lincoln for our company cars. I had the same issue with my Ford 500. I will point it out when I take it in for its next service appointment. Maybe they can attach a fastener. Not optimistic since the service department told me for years that they couldn’t replicate the “noise” when they test drove it. Although everyone who rides in my car ask me what’s that noise? My guess is the mechanic never took it out and drove above 60 mph.

Hi Kerrdog. Too late to help you now, but this is one reason why, I always advise owners: When we bring our vehicle in for service (especially for noises or other problems that only occur in certain driving situations), always ask the Service Advisor (or send a Tech) out with us for a test drive, so we can physically demonstrate the problem and get them to clearly state they see/hear/feel/smell the problem.

In this way, we don't leave it up to a wish and a prayer that the Tech will drive our vehicle in the same manner as we do when the issue occurs (i.e. drive over 60 mph) in order to find the problem on their own.

Keep us updated and good luck.

______________________________

 

[peterk9]

................................ Easy to fix but shouldn’t have to on a “luxury” SUV.

Welcome to the Forum.
It really shouldn't happen on any vehicle.

Peter

 

[V35A]

Slightly off topic… As a Service Manager in the past, I would look at the work load for the day to decide the most efficient way to get things done. I would take any car with a rattle, squeak or driveability problem and drive them myself to verify the complaint.

Many times I could do the repair quickly and go on to the next one. My point here is get ahold of the service manager and go for a drive with him/her. Technicians are on commission and make very little money dealing with these complaints.

All the above assumes you bought the vehicle there or have been a steady service customer.