Tin can rattle upon cold start and driving m: UPDATE not wastegate

[SCAR911]

So It’s definitely not the wastegate. I did the recommended spring fix. Below is the video I took of the sound. It’s definitely in that area that’s creating the tin can sound. Any ideas?

Truck running ok? Almost sounds like lose turbo couplers. That's pretty substantial

 

[patire19]

Truck running ok? Almost sounds like lose turbo couplers. That's pretty substantial

Yes no issues, running normal just have that sound when it’s cold

 

[thatJeepguy]

What if its iced condensate hitting turbines?

 

[Nex]

How many miles on your truck? Sounds like catalytic converters. On a cold truck, hit them with a rubber mallet. I bet they are broken and will rattle.

 

[thatJeepguy]

How many miles on your truck? Sounds like catalytic converters. On a cold truck, hit them with a rubber mallet. I bet they are broken and will rattle.

Ive had this happen but my truck would intermittently stall due to restriction.

 

[downforce137]

So It’s definitely not the wastegate. I did the recommended spring fix. Below is the video I took of the sound. It’s definitely in that area that’s creating the tin can sound. Any ideas?

What happens when you rev? Kinda sounds like something hitting the flywheel. Maybe the starter isn't disengaging completely?

 

[patire19]

How many miles on your truck? Sounds like catalytic converters. On a cold truck, hit them with a rubber mallet. I bet they are broken and will rattle.

75k miles

 

[SCAR911]

What happens when you rev? Kinda sounds like something hitting the flywheel. Maybe the starter isn't disengaging completely?

Sounds like a 10mm hitting the flywheel.

 

[bruce7105]

I just had the same problem it turned out to be in short muffler the piece that separates the two parts broke loose and sounded like a bunch of bolts in a tin can just to be sure it wasn’t the cats I cut it open. Sounded so bad and I thought for sure it was the cats. New SPD Trombone pipe and problem solved