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Hey guys , please move this post if it's in the wrong section . I just recently picked up a 2018 6mt scat pack shaker with 4k miles on it. At idle normally it sounds fine , but after hard driving I can hear a ticking that is intermittent . I have only had it for a few
weeks but it's in South Carolina so it's been hot this whole time.i have scrolled through a ton of post and video s , but hadn't heard much about a tick after hard driving . Is this normal or should I be concerned ? Thanks
 

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How's the oil level and when was it last changed? The 392 engine requires an oil change every 6 months since new to keep the warranty so hope that has been done.

Sent from my SM-N960U using Tapatalk
 

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Oil level is full and oil life is at 72 percent , it was changed when I bought it a month ago. I bought it from a Nissan dealership so I am making an assumption they probably didn't put in pennzoil synthetic like dodge does
 

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These are noisy engines, seem to be more-so when they're still new (Observed by myself and a few other 6.4L owners on this forum). So what's a noisy tick to one person may be normal Hemi noise to another. Without a video or audio clip, it's hard to say.
 

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I'll catch a video of it soon. I think I am being new to me car paranoid. It is going in Tuesday for some Uconnect issues, so I will have them change the oil to Pennzoil and start off on the right foot.

I'll bring up the noise at the dealership but as long as they listen to it and document it as normal, I will just turn the radio up.
 

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Hey guys , please move this post if it's in the wrong section . I just recently picked up a 2018 6mt scat pack shaker with 4k miles on it. At idle normally it sounds fine , but after hard driving I can hear a ticking that is intermittent . I have only had it for a few
weeks but it's in South Carolina so it's been hot this whole time.i have scrolled through a ton of post and video s , but hadn't heard much about a tick after hard driving . Is this normal or should I be concerned ? Thanks
Congrats on the awesome ride! FIRST: If the Nissan dealership changed the oil.....I'd bet u got whatever they stock. And they DO NOT stock Pennzoil Pure Platinum 0-40!! You MUST get the right oil in it first!! The oil was created for this engine.....that is not a joke. Do your research.

I have had many Mopars in the last 40 years....and yes....after hard driving it is normal to get a pronounced tick that goes away after a bit. The reason is....the high RPM squeezes oil out of the lifters and you get a little slack in it. That's the tick. Some easy driving or sitting....the lifter pumps back up and is quiet again. Normal on a Hemi.
 

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Hi Bizlipkick

I have pretty much the exact same symptoms you describe with my 2012 SRT8. 95% of the time the engine is quiet as a mouse like a little sewing machine but as you describe intermittently especially after a spirited blast along the freeway, when at idle the engine will be embarrassingly noisy ticking/tapping away.

I changed my oil when I bought the car last year at 15,200 miles, then again at 18,500, using Shell Helix 0w/40, the car was stored during the winter and is now at 20,800 miles and will shortly be due another oil change, this time I am going to use the Pennzoil 0w/40 recommended by Chrysler (7 quarts cost approximately $140 here in the U.K) as an experiment to see if it makes any difference

Regards

Dereck
 

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Congrats on the awesome ride! FIRST: If the Nissan dealership changed the oil.....I'd bet u got whatever they stock. And they DO NOT stock Pennzoil Pure Platinum 0-40!! You MUST get the right oil in it first!! The oil was created for this engine.....that is not a joke. Do your research.

I have had many Mopars in the last 40 years....and yes....after hard driving it is normal to get a pronounced tick that goes away after a bit. The reason is....the high RPM squeezes oil out of the lifters and you get a little slack in it. Thats the tick. Some easy driving or sitting....the lifter pumps back up and is quiet again. Normal on a Hemi.
Thanks man, I have done some research and you are right, I will get the oil changed Tuesday and keep an eye on it. I would be willing to bet some wheels that whatever oil is in their now is not Pennzoil from Dodge. But even then, if I am supposed to get a normal tick after driving it hard then I am not worried about it. Luckily I have been out of town for half the time I have owned the car, so I have only put 500 miles on it since purchased.
 

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Hi Bizlipkick

I have pretty much the exact same symptoms you describe with my 2012 SRT8. 95% of the time the engine is quiet as a mouse like a little sewing machine but as you describe intermittently especially after a spirited blast along the freeway, when at idle the engine will be embarrassingly noisy ticking/tapping away.

I changed my oil when I bought the car last year at 15,200 miles, then again at 18,500, using Shell Helix 0w/40, the car was stored during the winter and is now at 20,800 miles and will shortly be due another oil change, this time I am going to use the Pennzoil 0w/40 recommended by Chrysler (7 quarts cost approximately $140 here in the U.K) as an experiment to see if it makes any difference

Regards

Dereck
Thanks Dereck, that's exactly when I heard mine was showing off a bit for my son on the freeway, then we were in a fast food drive through and it was a very pronounced "tap tap tap" .
 

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Here's some more information about the Hemi tick, at idle, from the SRT engineers:

""You will not hear the valve seating at or near idle conditions unless you have seriously aerated the oil system and hence the lifters. You will also not hear the moly wearing off the piston skirts. A piston that is too small in a bore too big will result in a cold slap that can be heard at cold (I mean cold like -20 deg F) idle. We do a lot of testing and guage pistons and bores very carefully to make sure you as our customer cannot detect the piston movement in the bores- hot or cold. I expect what you hear is the injectors which do make a clicking noise that can be heard and gets slightly noisier as the injector temp is elevated. The noise is caused by the injector pintel as it opens and closes and while we have not been able to eliminate the noise due to the required operation (you need the fuel) we have done some work with minimizing the noise with isolation."
 

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Might you be hearing the exhaust system making noise as it cools after running hard, and not the engine?
That being said, I agree you need to have the oil changed to insure you have the correct oil in it.
 

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Yeah, video does not sound abnormal, and many of us use Mobil 1 0W-40( which was also designed by the SRT engineers - granted back in like 2004) and do not have unusually loud or tickity engines.
 

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Might you be hearing the exhaust system making noise as it cools after running hard, and not the engine?
That being said, I agree you need to have the oil changed to insure you have the correct oil in it.
Yea I will report back after dealership trip and oil change tomorrow
 

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I can hear an irregular tap...almost like someone trying to send morse code. I'd keep an eye (ear) on it but would not lose sleep over it just yet.
 

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I can hear an irregular tap...almost like someone trying to send morse code. I'd keep an eye (ear) on it but would not lose sleep over it just yet.
That's exactly what I hear, hard to explain unless you are near it in person. I really think it's whatever crap oil the dealership had in it. Shouldn't be that way but seems like it's a hemi thing ?
 

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That's exactly what I hear, hard to explain unless you are near it in person. I really think it's whatever crap oil the dealership had in it. Shouldn't be that way but seems like it's a hemi thing ?
It actually reminded me of my liberty 3.7 engine that had a weird tap like that. Ran on conventional oil up until 120kmiles. Instead of switching to synthetic oil I ran 2 treatments of MMO (always thought it was snake oil) and it disappeared. Since then, I have switched to synthetic mobil 1 and the valvetrain remains silent. Not saying you should do the same but I would say run a synthetic oil you trust...if you don't have one then start with pennzoil.

Everyone seems to say it is normal for a hemi but I own a 5.7 JGC and a 5.7 challenger...the 5.7 JGC valvetrain is dead quiet whereas the challenger valvetrain seems to be a bit noisier (I suspect it could be the challenger has a more aggressive cam profile). The FSM says some valvetrain noise is normal but to me irregular taps like that are not. Wish I had a definitive answer as to what is causing it but like I said don't lose sleep over it just yet.
 

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Everyone seems to say it is normal for a hemi but I own a 5.7 JGC and a 5.7 challenger...the 5.7 JGC valvetrain is dead quiet whereas the challenger valvetrain seems to be a bit noisier (I suspect it could be the challenger has a more aggressive cam profile).
Different intakes, different NVH profiles for engine covers/insulation/mounts, different exhaust manifolds, among many, many other differences - comparing GC & Challenger is very much apples-oranges is what I'm saying. GC has no-compromise approach to NVH, a very different 'experience' compared to Challenger of course...which if you have both, I'm sure you've noticed how much smoother & quieter EVERYTHING is in GC compared to Challenger, especially if the GC is MY 14+.

I had an 18 GC Trailhawk w/5.7, couldn't even tell engine was running. IMO, it's too quiet, but that's what GC buyers want. Or so I'm told lol
 
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