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6.4 squeak?
Posted: Wed Jul 13, 2016 9:19 am
by Chisel
Hey guys. Just got a 2016 PW about a month ago. I've read posts about the Hemi "tick" but that's not what I've got exactly. Like the topic said its more of a squeak. Does it on start up when cold. Goes away when it's warmed up. Not terribly loud but definetely noticeable. I'm guessing it might get worse when winter rolls around. Little over 1k miles on it. Most stuff I've read talk about a "tick" or the wrist pin issue. I'm pretty sure that's not what I've got but just wanted to see if anybody has any new info on this. Here is a YouTube video link I found that is the exact noise I'm talking about
http://youtu.be/JbBMRf0fVeI
Re: 6.4 squeak?
Posted: Wed Jul 13, 2016 1:48 pm
by waldo
Mine makes some kind of chirp/squeak like it might be the belt or a pulley, but only when it's in gear. I haven't tried to chase it down yet.
Re: 6.4 squeak?
Posted: Wed Jul 13, 2016 9:16 pm
by olyelr
Sounds like horsepower trying to unwind to me. Ive never heard my truck sound that quiet before when i first start it. Sometimes its almost embarrassing how obnoxious it is.
I think its just how these motors sound. But, i really dont know much about it yet either

Re: 6.4 squeak?
Posted: Wed Jul 13, 2016 10:28 pm
by adeluca73
Mine sounds similiar, I figured it was a slight pulley misalignment, never worried about it much
Re: 6.4 squeak?
Posted: Wed Jul 13, 2016 10:53 pm
by Reloaderguy
It's all the awesome trying to escape.
Re: 6.4 squeak?
Posted: Wed Jul 13, 2016 11:56 pm
by israelstanage
Reloaderguy wrote:It's all the awesome trying to escape.
This
Re: 6.4 squeak?
Posted: Thu Jul 14, 2016 6:29 am
by Chisel
Reloaderguy wrote:It's all the awesome trying to escape.
Now I'm just embarrassed I didn't realize this before.
But yeah I'm not that worried about it. Got some free oil changes from the dealer when I bought it so I'll prolly ask them to take a listen, although I'm guessing I'll get "it's normal" or "we don't hear the noise"
Re: 6.4 squeak?
Posted: Thu Jul 14, 2016 6:49 am
by Will
I tried to listen to my 6.4 in the Scat Pack but can't hear the engine over the bad ass factory exhaust.

Sorry, can't help but yours sounds like a typical belt squeak to me.
Re: 6.4 squeak?
Posted: Thu Jul 14, 2016 7:57 am
by olyelr
Its possible its the muffler bearing, no?
Re: 6.4 squeak?
Posted: Thu Jul 14, 2016 8:15 am
by NickTF
The best explanation I came across had something to do with the material of the exhaust system, want to say the manifolds themselves, which result in the noise until warm.
Re: 6.4 squeak?
Posted: Fri Jul 15, 2016 10:10 am
by LagunaH1
Sounds a lot like mine, just with less ticking