GottaFixMyDoorGreen
Junior Member
Hi all!
Looking for help diagnosing an extremely annoying NVH issue on my car. Vehicle is a 2013 Boss 302. The sound occurs between 2800-4000rpm and is most prominent when the vehicle is cold. The issue gets better with temperature but is still persisent and loud. It has a metallic sound that grows in volume the harder I am on throttle. WOT is the worst. It can also get into oscillations when crusing around 3K rpm. If the door is unlatched, the sound is significantly reduced.
Take a listen in the video below to hear what it is. This is WOT getting onto a freeway.
A while back I brought the car to a dealer as I thought this might be a typical warranty issue discovered during the life of the vehicle. They claimed that the door bodywork was coming apart and tried to bond it back together. And that did pretty much nothing. I took apart the door panel and added dynamat and other NVH padding (thinking that the door panel was acting like an aplifier) to try to reduce the amplitude of the vibration but this hasn't done much either.
I've tried root causing this using internet research. That lead me to believe this was caused by a heat shield around the exhaust, but even after torquing all the bolts on all heat shields, the issue remains. Another suggestion was that it could be the passenger side seatbelt mechanism.
Has anyone seen something like this on their car? Any thoughts into what else I can try to figure out the issue?
Looking for help diagnosing an extremely annoying NVH issue on my car. Vehicle is a 2013 Boss 302. The sound occurs between 2800-4000rpm and is most prominent when the vehicle is cold. The issue gets better with temperature but is still persisent and loud. It has a metallic sound that grows in volume the harder I am on throttle. WOT is the worst. It can also get into oscillations when crusing around 3K rpm. If the door is unlatched, the sound is significantly reduced.
Take a listen in the video below to hear what it is. This is WOT getting onto a freeway.
A while back I brought the car to a dealer as I thought this might be a typical warranty issue discovered during the life of the vehicle. They claimed that the door bodywork was coming apart and tried to bond it back together. And that did pretty much nothing. I took apart the door panel and added dynamat and other NVH padding (thinking that the door panel was acting like an aplifier) to try to reduce the amplitude of the vibration but this hasn't done much either.
I've tried root causing this using internet research. That lead me to believe this was caused by a heat shield around the exhaust, but even after torquing all the bolts on all heat shields, the issue remains. Another suggestion was that it could be the passenger side seatbelt mechanism.
Has anyone seen something like this on their car? Any thoughts into what else I can try to figure out the issue?
