Engine noise

Irrivirsible · Apr 23, 2017

When I first start up the truck in the morning or after it has sat dfor hours everything seems fine until I put it in gear and then I get an engine noise. Have to have the window or door open and if you are parked next to a vehicle it reflects off that and is fairly loud. Anyone else notice that?

Curlyp · Apr 23, 2017

Irrivirsible said:
When I first start up the truck in the morning or after it has sat dfor hours everything seems fine until I put it in gear and then I get an engine noise. Have to have the window or door open and if you are parked next to a vehicle it reflects off that and is fairly loud. Anyone else notice that?

What year is your vehicle? Does it happen to sound like this?

https://youtu.be/faG4RF9Nqkc

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DILLIGAF · Apr 23, 2017

Use Redline oil and the tick noise will go away. These HEMIs hate cheap oil.

Irrivirsible · Apr 23, 2017

Curlyp said:
What year is your vehicle? Does it happen to sound like this?

https://youtu.be/faG4RF9Nqkc

Sent from my iPhone using Tapatalk

No, this is engine noise or would seem to be. I will have to record it.

Burla · Apr 23, 2017

If the truck waits til it gets in gear before making the noise, definitely not lifter tick.

Hemi395 · Apr 23, 2017

Is it this noise?

https://www.youtube.com/watch?v=1o8QRywgKYc

If its this noise, it's a Hemi thing. Mine has done this since it was new and my buddy that has a 2016 Laramie has done it since new as well. Had the dealer listen to it and they said it was normal. Had my mechanic that I trust listen to it with a stethoscope and he didn't hear anything bad. I've gotten to the point where I just ignore it.

Irrivirsible · Apr 23, 2017

curlyp said:
what year is your vehicle? Does it happen to sound like this?

https://youtu.be/fag4rf9nqkc

sent from my iphone using tapatalk

2014

Irrivirsible · Apr 23, 2017

Hemi395 said:
Is it this noise?

https://www.youtube.com/watch?v=1o8QRywgKYc

If its this noise, it's a Hemi thing. Mine has done this since it was new and my buddy that has a 2016 Laramie has done it since new as well. Had the dealer listen to it and they said it was normal. Had my mechanic that I trust listen to it with a stethoscope and he didn't hear anything bad. I've gotten to the point where I just ignore it.

That is it. This is a lease and although I got about 11 months to go, I am starting to consider if I want to keep this. My concern was if that is something that will cause harm down the road.

Hemi395 · Apr 23, 2017

I thought the same thing but it hasn't gotten any worse in 27000 miles. I have heard many other cars and trucks with Hemi's sound like this on a cold start. Doesn't seem to be the trans as I've heard it with 8speeds and 5/6 speeds. My theory is it's a mild form of piston slap because Hemi pistons have extremely short skirts.

Does it go away after it gets to operation temp?

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Irrivirsible · Apr 23, 2017

Curious as to what that would be. Piston slap? It goes away after the truck is running for a bit.

Hemi395 · Apr 23, 2017

Irrivirsible said:
Curious as to what that would be. Piston slap? It goes away after the truck is running for a bit.

Same here it completely goes away after the motor warms up.

Piston slap is when the the piston flutters around slightly in the cylinder until it expands enough to smoothly move in the cylinder. Older engines had long skirtted pistons to avoid this but the extra mass limited the max rpms. Early GM 4.8/5.3/6.0 V8s were notorious for piston slap when cold but would still go well over 200k.

Engine noise

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