Bought my 2019 1500 5.7 Big Horn in March. 24500 Miles. March and April were still fairly chilly so didnt ever drive with the windows down.
Now that its nicer out ive noticed my exhaust makes what sounds like a hiss or whooshing sound when accelerating or accelerating under load, about 1400RPM especially. I never hear the sound unless im driving next to parked cars or curbs / barriers. It almost sounds like an exhaust leak, yet I cant find any leak at all. It seems to be coming from under the truck and is equally pronounced on the driver and passenger side. It almost sounds like a Diesel engine. Not rattles in the CAT. No Manifold tick. Can hear lifters on cold starts but put in 93 octane. I did notice the Y pipe connection to the exhaust extension isn't totally flush, but not a huge gap. I did put in some gasket seal on the exhaust muffler joint on that little pain in the *** tab gasket as it was leaking a little. Soap test showed that it is now fixed.
Just took a road trip and got 20MPG, so I dont see much drop in performance and was actually really happy with that MPG
I can not recreate the sound in park and revving. Ive read on some forums that it is just the sound the truck makes, especially as noise resonation would probably be coming off the Y Pipe. Ive never had a truck let alone a Hemi. Maybe im just not used to the sounds of an exhaust like this. Its honestly driving me insane not knowing what's goin on or if its normal.
Any help is greatly appreciated
ALSO seems to be more pronounced as maybe even a "gurgle" when im going slowly, accelerating, and right next a barrier
Now that its nicer out ive noticed my exhaust makes what sounds like a hiss or whooshing sound when accelerating or accelerating under load, about 1400RPM especially. I never hear the sound unless im driving next to parked cars or curbs / barriers. It almost sounds like an exhaust leak, yet I cant find any leak at all. It seems to be coming from under the truck and is equally pronounced on the driver and passenger side. It almost sounds like a Diesel engine. Not rattles in the CAT. No Manifold tick. Can hear lifters on cold starts but put in 93 octane. I did notice the Y pipe connection to the exhaust extension isn't totally flush, but not a huge gap. I did put in some gasket seal on the exhaust muffler joint on that little pain in the *** tab gasket as it was leaking a little. Soap test showed that it is now fixed.
Just took a road trip and got 20MPG, so I dont see much drop in performance and was actually really happy with that MPG
I can not recreate the sound in park and revving. Ive read on some forums that it is just the sound the truck makes, especially as noise resonation would probably be coming off the Y Pipe. Ive never had a truck let alone a Hemi. Maybe im just not used to the sounds of an exhaust like this. Its honestly driving me insane not knowing what's goin on or if its normal.
Any help is greatly appreciated
ALSO seems to be more pronounced as maybe even a "gurgle" when im going slowly, accelerating, and right next a barrier