What is this sound?

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AustinH

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Hey guys, I have a 2017 Ram 1500 5.7 and I am trying to figure out what this noise is. Seems to be the loudest while cold and definitely louder while in drive or reverse. Almost goes away when on park or neutral. Doesn't completely go away at operating temperature. I had a shop have a listen 6 months ago and he told me it was piston slap and nothing to worry about. Doesn't really sound like the lifter issue or an exhaust leak to me, but I'm no expert. Sounds to me like it is coming from the flex plate area. Any help would be appreciated. See link below

 
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AustinH

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Just removed heat shields and checked all bolts. All are good. I have 136k miles on the truck and use 5w 20 full synthetic. I also tried that Lucas oil additive, almost seems to have made it a bit louder. When I'm under the truck with it running seems like it comes from the flex plate area. Doesn't really sound like the lifter noise to me but I could be wrong.
 

indept

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What brand of oil? Our hemi's like Moly (Molybdenum) which some oils lack sufficient amount of. Pennzoil, Quakerstate, Redline are a few popular brands with moly.
Here's a thread that addresses oil issues.
 

RamDiver

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Just removed heat shields and checked all bolts. All are good. I have 136k miles on the truck and use 5w 20 full synthetic. I also tried that Lucas oil additive, almost seems to have made it a bit louder. When I'm under the truck with it running seems like it comes from the flex plate area. Doesn't really sound like the lifter noise to me but I could be wrong.

Many users have had good results using Lube/Gard Bio Tech Engine Protectant.


There's also a great YouTube vid demo of a before and after using Lube/Gard.

.
 

Daw14

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5.7 hemi
Redline 5w30 has helped many on this site with noise. Try it. It makes my engine almost unnoticeable, except for the injectors . Costs more , but worth every cent in my opinion.
 

CanuckRam1313

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Redline 5w30 has helped many on this site with noise. Try it. It makes my engine almost unnoticeable, except for the injectors . Costs more , but worth every cent in my opinion.
Heck to the YES!!!

I switched to Red Line 5W30 High Performance Oil and a Royal Purple 20-820 oil filter and my HEMI is the quietest and happiest its ever been... and I'm now at 136,000Km's (purchased new in 19').
 

jws123

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It sounds like a little bit of piston slap switch to 5w30 synthetic also that lucas **** is No good its used for engines about to blow up to make em last a little longer thats all its good for. Also how often do you change your oil? are you orig owner or got it used?
 

CanuckRam1313

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It sounds like a little bit of piston slap switch to 5w30 synthetic also that lucas **** is No good its used for engines about to blow up to make em last a little longer thats all its good for. Also how often do you change your oil? are you orig owner or got it used?
I purchased brand new at the end of June 19' with call it 10km's on my truck... FFWD to today at 4+ years of ownership and I'm sitting at 136,000Km's on my truck and I just recently switched to RL HP 5W30 oil and RP 20-820 oil filter under 20,000Km's ago (I always previously used synthetic 5W20 oil and either a MOPAR or DELCO oil filter and changed at 6,000Km intervals).

Huge improvement in how my HEMI sounds and operates with this new oil and filter combo. Is it more expensive, yes! Is it worth every penny to me, yes!

I now go 5000 miles (8,000Km's) between oil/filter changes and that's a perfect time to ensure my investment keeps me and my family dependably on the road.

I plan on 500,000Km's of ownership experience with my 19', and through the brain-trust in this forum I fully believe I will now achieve this.

I use 91 fuel and this oil and filter combo and drive my HEMI like it's supposed to be driven. I am hyper diligent on my predictive and preventative maintenance, and because this truck is my lifeblood to my career success, it is worth going this route to ensure I am successful, and more so that my daughter and me are safe in this truck every single day we are in it ;)
 
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