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  #1  
Old 03-22-2013, 11:59 PM
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Default Does this 2013 ram sport hemi sound normal?

Hi Guys,

I just purchased this truck and went for a test drive. Everything seems normal but after signing the documents I came out of the dealership and noticed this sound (may be ticking/knocking or just nothing). So I called and showed the salesman what you can hear in the attached video (at 45 sec mark) . He said its a brand new engine with just 50 KMs and its normal for hemi to sound like this. Not sure if I should believe him and decided to share this video on this forum. Any advise on this matter is appreciated.

If you think its an issue then can you please suggest what I should be doing. Thanks a lot.

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  #2  
Old 03-23-2013, 12:02 AM
Chromag Chromag is offline
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Recent thread about the Hemi knock. Someone also posted a vid of a 2012 Ram Hemi with the exact same knocking noise. Hope that helps.
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Old 03-23-2013, 12:11 AM
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Sounds normal too me. Ive also got a 13 sport, but ive never stuck my head in the wheel well either lol. This is my second hemi and they seem to be fairly loud at first. try synthetic oil after youre first or second oil change and should get a bit quieter. I would post a vid of mine but im not too good at this computer stuff lol. After all youve got a 5 year powertrain warranty !! drive it like u stole it lol
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Old 03-23-2013, 12:55 AM
buckmaster buckmaster is offline
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As I previously posted in the thread posted by "Chromag" above, this sound is what mechanics call a "wrist pin" knock or rattle. I have heard this many times with gas engines. Sounds like there is too much end play between one connecting rod and the wrist pin (if the pins are floated in the rod). If the pins are pressed into the connecting rod, which they used to be (I have not had one of these late hemis apart, had many older 392s and 426s apart many times). If they are pressed in, then there is too much end play between the piston and the pin. Either way, piston or con. rod, I would not be happy with this noise.
Usually new engines are fairly tight and get loosened up during break in. I would not expect to hear this noise on a new engine.Normally this type of noise is more pronounced when the engine is cold and tends to quiet down as the engine approaches normal operating temperature because of thermal expansion. In any case, this is a serious enough problem that should be investigated by the dealer. It can be fixed, but the engine will have to be disassembled and parts measured and examined. Sorry to have to deliver this news. It can be fixed. Dealer mechanics do it all the time. It is only "nuts and bolts". Remember, this is just one mechanic's opinion. (However, I do have over 45 years engine experience).
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Old 03-23-2013, 02:57 AM
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I am not a mechanic. However I have heard it on many Rams, even a 2010 Silverado. Many theories abound. All I know is that these are new engines with lighter metals, different technology from old cast iron blocks.
Mine does this sound when cold. At 38,000 km I have had zero issues with this truck - ok one, the plastic park brake release handle cracked and was promptly replaced under warranty.
Definitely disconcerting when you are used to older engines but I pay it no attention having 0 issues. Will see how I do at 80,000km - still under warranty.
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Old 03-23-2013, 06:33 AM
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I agree with johnnymopar. When test driving a 2012 Lonestar 4x4, I also test drove an express and a sport and all three hemis had the same exact sound that you recorded. It can be a big shock for people not used to a noisy engine like the Hemi. Remember, you have 5years or 100,000 miles to make that powertrain give out on you. So just drive it and see if it goes the distance. Or you can try and have them replace the motor and hope the noise is a bit better. But how much more grief do you want to put yourself through with a new design truck having to wait weeks to months for a new engine swap only to be disappointed that the noise is still there you know? It was enough stress signing for the bill to start with. Another factor is knowing that these motors use a 5W20 weight oil because of the MDS feature, which is a fairly thin oil for any V8 but because of the MDS, that 5W20 is supposed to aid economy, and will make for a little bit noisier engine compared to most engines running a 10w30 to 10w40 or even 50w engine oil.
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Old 03-23-2013, 07:47 AM
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I agree with the above two posts, mine also does this when cold. As soon as it warms up its gone. The little tap tap in your video is exactly what I hear on mine. I have 33,000 Kim's and its going strong. I did swap out for full synthetic at 5,000 Kms. If it really bothers you I suppose you could get them to tear down your engine (no way I'd do that). Run it for a while and see how it goes, it's under full warranty for quite some time.
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Old 03-23-2013, 10:00 AM
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That is how mine sounds. Like I mentioned in previous posts about engine noise, the Hemi is a very noisy motor IMO.
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Old 03-23-2013, 06:39 PM
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Hi ransram,

You mentioned your does sound the same. So it just goes away after warm up. How long is the warm up time? Thanks
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Old 03-23-2013, 06:54 PM
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Before i switched to synthetic oil
On chillier days mine would sound like that for maybe 1/2 minute
but where i live, we don't get snow & it is uncommon to see ice on a water puddle
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