thunderstrike

When going slow I am hearing some rattles behind my seat. When I go over touching with hands everthing between the seats and engine firewall, I can't feel anything loose. Any suggestions where the rattle source/s are?
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2019 Mustang GT Premium 6MT Daily Driver
2023 Corvette Stingray 2LT
2017 Porsche 718 Cayman
2009 Jeep Wrangler Rubicon

golddog

Did you check the seatbelt loop snap? If equipped.

Hockeyfun1

Rear window if HTC.

thunderstrike

It's a Coupe. Will check seat belt loop (i think it's coming behind from right shoulder). Will check window in front of engine. Thank you.
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2019 Mustang GT Premium 6MT Daily Driver
2023 Corvette Stingray 2LT
2017 Porsche 718 Cayman
2009 Jeep Wrangler Rubicon

tadda

I've noticed a similar rattling sound coming from the passenger seat side...I have a 2LT Coupe with GT2 seats which doesn't have seatbelt loop "snaps"

Red rag

My passenger seat rattles without a passenger. I move it all the way back and it takes the rattle out. I think it’s just the nature of the seats.

thunderstrike

OK, rattles are not that bad, not all the time and can live with it. They are very minor compared to Mustang's. LOL
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2019 Mustang GT Premium 6MT Daily Driver
2023 Corvette Stingray 2LT
2017 Porsche 718 Cayman
2009 Jeep Wrangler Rubicon

01Defense

Could be coming from the removable top panel where it seats in the holes. Little greasing may fix it if the seat belt loop isnt the culprit.

undecided1965

In mine it was the seat belt loop. The C8 is the most rattle free car I've ever owned and I've owned primarily expensive german cars.

kenrobb

I agree; same on my HTC w/o passenger. I fasten the seat belt to stop.

Mike's LS3

I have a 2021 2LT with GT2 seats and have the seatbelt loop. Several months ago, I had a slight rattle over my left shoulder (drivers' side). I applied dielectric grease on the removable top weatherstripping with no improvement. Then, I remembered reading about the seat belt loop that can cause a slight rattle. The rattle turned out to be from the unsnapped seat belt loop. I don't know when GM started installing the seat belt loop?

tadda

I just went and moved my seat all the way back....I'll see if this helps....

I'll be damned...The GT2 seat does snap at the top! It wasn't clear that it was a snap...I just checked my seats, and both were snapped in place....

thunderstrike

Mine is a Coupe, and I'd say this cluld be the removeable top creaking rattle I hear. My Jeep Wragler has removal top and two front pieces have guiding rod which needed cloth electrical tape to stop rattling. I am affraid to take off Coupe roof top as I read few posts with difficulties in reinstalling. Will follow up on other suggestions of course.
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2019 Mustang GT Premium 6MT Daily Driver
2023 Corvette Stingray 2LT
2017 Porsche 718 Cayman
2009 Jeep Wrangler Rubicon

DHDCF

Have you added engine bay dress up stuffs? Support braces may not be torqued to specs. I just went through this on my coupe.

thunderstrike

What is the Torque? I can check. Great possibiilty.

plmmd

Passenger seat rattle cured by puttting a rolled car mat behind the seat and pushing it all teh way back

DHDCF

I don't know as had taken mine in to dealership and that was the annotated fix...less the actual amount.

undecided1965

I you losen up the 2 front mounting latvhes and pop the rear one you can exert a small amount of upward pressure from inside to slightly dislodge the roof thus creating a small enough gap between the rubber on the roof and rubber on the car. You can then moisten a microfiber cloth with something like gummipfledge or formula 403 or some other rubber rubricant and apply it. You can then push the roof down and reengage all 3 latches.