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What is this sound,

5

56ram2500

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Got this noise on restart in drive through, the sound that stopped after a 1/4 mile drive out of the drive in lane, I took video an then shut it off to eat, on restart no more loud noise. BTW the oil had been changed about 240 miles before noise showed up.. At first Ram service said AC clutch, then saw a TBS about noise they did a AC realignment, checked belt alinement, then said sorry know known fix at this time, admitted you can still hear faintly... So opinions/ideas are welcome, btw saw there copy that said it sounded like a typewriter. BTW sound may be muted when you click on link below, if so unmute..

https://imgur.com/lxkys22
 
If your truck is 19+ and if it follows rpm and is louder at the drivers side wheel it is likely a lifter.
Known issue. Can, and often does, come and go until it starts to wipe the cam and then it will become more consistent. Recommend Oil analysis to watch for wear metals.
 
56ram2500 said:
Another question is it normal for this noise to show up after a shut down and then restart a minute or so later? Here is what happened today after a short 1-2 minute shut down and then restart, hope I edited my video correctly, if no sound unmute it,

https://imgur.com/hRsmral
Click to expand...
Normal?...no, but also maybe... It sounds very much like a lifter to me. Assuming it is and given how the lifters operate; then a shut down (reset in oil pressure) could let that one "lazy" lifter pump down, and since it is being "lazy" it needs more oil pressure than normal/others to pump back up.

Did you drive the truck after recording that vid?
If so I'll bet the tick went away while driving/when rpm is sustained above idle. Then came back once idling.

What oil did they put in it?
 
I had the same sound on my 23' 2500 with 7,000 k. noise became progressively worse after the first oil change that was performed at the dealership. They just put a new short block in but damaged the oil pan in the process, still waiting for my rig. Has been at the dealership for 75 days tomorrow.
Good luck to you.
 
Ostracize said:
Normal?...no, but also maybe... It sounds very much like a lifter to me. Assuming it is and given how the lifters operate; then a shut down (reset in oil pressure) could let that one "lazy" lifter pump down, and since it is being "lazy" it needs more oil pressure than normal/others to pump back up.

Did you drive the truck after recording that vid?
If so I'll bet the tick went away while driving/when rpm is sustained above idle. Then came back once idling.

What oil did they put in it?
Click to expand...
Resent oil change was from Amsoil 5w40 to Amsoil best 10w30, before resent oil change from 5w40 to 10w30 I had never heard this noise, the reason I went to 10w30 was due to fuel in the oil was running just under 5%, it was also recommended I go to 10w due to low oil viscosity...
 
What OCI have you been running?
The 5% fuel tells me that you've sent in some samples, did you see an uptick in iron? You're likely already aware, but just in case, 5% is quite high... Cummins wants 2% or less. Have you been tracking your active regens? If so, how many hrs between them?
Switching to 10w30 shouldn't be the cause.. Unless you're operating in 0°F or less consistently. The slightly thinner viscosity could in theory be less effactive at overcoming a lazy lifter but honestly an argument could be made both ways.
A bit anecdotal, but Amsoil doesn't actually perform very well on cold start(freezing) compared to other synthetics, but that said, their base oil and additive pack is quite good, take it for what it's worth.
My semi-educated guess is that you have been actively regenerating way more than necessary for some unrelated reason, that has overtime increased fuel dilution which decreased stoetric viscosity potentially exaggerating the risk of a lazy lifter.
Might be time for a dealer visit to discuss the whole picture with them.
 
Ostracize said:
What OCI have you been running?
The 5% fuel tells me that you've sent in some samples, did you see an uptick in iron? You're likely already aware, but just in case, 5% is quite high... Cummins wants 2% or less. Have you been tracking your active regens? If so, how many hrs between them?
Switching to 10w30 shouldn't be the cause.. Unless you're operating in 0°F or less consistently. The slightly thinner viscosity could in theory be less effactive at overcoming a lazy lifter but honestly an argument could be made both ways.
A bit anecdotal, but Amsoil doesn't actually perform very well on cold start(freezing) compared to other synthetics, but that said, their base oil and additive pack is quite good, take it for what it's worth.
My semi-educated guess is that you have been actively regenerating way more than necessary for some unrelated reason, that has overtime increased fuel dilution which decreased stoetric viscosity potentially exaggerating the risk of a lazy lifter.
Might be time for a dealer visit to discuss the whole picture with them.
Click to expand...
The longest OCI was the last one, just under 12 months an 5400 miles , the coldest temp I should see this oil run is 10 degrees over night, it would be very rare if it sees zero in the next 12 months, had a talk to Ram at first told ne it was fuel knock I called BS then it was the AC clutch, then it was we saw a Teck report to adjust AC compressor as it set it back and to also check fan belt alinements and pulleys, I did see the techs wording that was not on my paper work stated sound was like old time typewriter. I also left out in my other post today that the noise could still be heard faintly after driving the truck back home about 1.5 after hearing the noise...

One other thing last UOA on Oct 8 2024 stated copper went from 16 to 254 from same oil some 3001 miles later but oil constatation was <2% estimated like it was with just 2391 miles on the oil when sampled April 18th 2024 so I have to assume the Archoil I have been using this past few months is why my regens have gone from as low as 350 miles ( could of been less miles but was not keeping eye on it) to 2 in a row full 24 hours between regens and without max weight or any weight in the bed of the truck.
 
As often as it's said on here.... Your dealer is full of crap. It's very easy to diagnose a noisy lifter. At idle when making the tick... Stetho the drivers side of the block through the wheel well. The lifters are right there and any mechanic worth salt can isolate the specific one that is noisy.
Additionally, make sure their mech is actually a diesel tech... If not I'd honestly go elsewhere.

The only other possibility is a bent push rod... But I'm doubtful.
You likely have a cam and lifter(s) in your future... Which won't fix it permanently... Then block.
If you can, specifically push a STAR case... They will(should) have the tech dig deeper into the bores and possibly find any underlying issue instead of just throwing parts at it.

Mine got a cam/lifters @48k then once it basically immediately came back at 50k it got a short block once they looked deeper and found a casting flaw in the lifter bore.
 
Ostracize said:
As often as it's said on here.... Your dealer is full of crap. It's very easy to diagnose a noisy lifter. At idle when making the tick... Stetho the drivers side of the block through the wheel well. The lifters are right there and any mechanic worth salt can isolate the specific one that is noisy.
Additionally, make sure their mech is actually a diesel tech... If not I'd honestly go elsewhere.

The only other possibility is a bent push rod... But I'm doubtful.
You likely have a cam and lifter(s) in your future... Which won't fix it permanently... Then block.
If you can, specifically push a STAR case... They will(should) have the tech dig deeper into the bores and possibly find any underlying issue instead of just throwing parts at it.

Mine got a cam/lifters @48k then once it basically immediately came back at 50k it got a short block once they looked deeper and found a casting flaw in the lifter bore.
Click to expand...

Went to see dealer today will look at it next week when they have it for ESC TBS, was also told its not easy to put/use statoscope on drivers side of the engine o_O also over heard another service advise say to someone else almost every truck the comes in here has that sound, boy that sure made me all warm and fuzzy NOT and then told not to worry when i said well the wife is worried as we plan a trip next spring when Yellowstone opens and the drive to there will be none stop for 15 hours except to refuel and again on several long drives to places we are to visit and then a full 38 hours driving on our way back home only stopping to refuel....
 
Go back to 5w40. There is no reason or benefit to running 10w30 that is too thin for diesel oil imho
 
Definitely can't hurt.. But to be clear 10w30 wasn't the cause here.
Also do your own research on higher zddp oils vs lower(and thus generally higher calcium). There's something to be said about these motors with hydraulic lifters and the, more or less, two different methodologies that oil manufacturers use for anti-wear additives
 
Ostracize said:
Definitely can't hurt.. But to be clear 10w30 wasn't the cause here.
Also do your own research on higher zddp oils vs lower(and thus generally higher calcium). There's something to be said about these motors with hydraulic lifters and the, more or less, two different methodologies that oil manufacturers use for anti-wear additives
Click to expand...
I know it was not the cause but 5w40 is better for working trucks. unless the truck is a grocery getter all the signs and research point to using 5w40 being better protection and can do much longer OCI’s
 
H3LZSN1P3R said:
I know it was not the cause but 5w40 is better for working trucks. unless the truck is a grocery getter all the signs and research point to using 5w40 being better protection and can do much longer OCI’s
Click to expand...
Wasn't targeting you... Just didn't want him(not you) to inadvertently think it causal.
 
Lifters.

Mine makes the same noise, completely at random / intermittent. Sometimes it doesn't make any noise at all, sometimes it sounds just like this.
 
What surprised me about the noise is the fact that within 300 miles of the oil change to 10w30 I got the noise ( I only went to it because dealer said it would be better for fuel in the oil ) anyway today I ordered 3 gallons of 5w40, I already have 3 oil filters on hand so it will not hurt as much lol. Also I only thought about making the change after reading about others who have this noise in other forums, iirc it seamed most were running 10w30 oil so I figured it cant hurt, well except my pocket book :rolleyes:
 
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