2012 piston slap/ low knock noise.

[pyramid2455]

17500 miles ... first change was mobile 1 5w20

Then had dealer change it when it was in for recall.

Then I just started redline 5w30 about 500 miles since that change.


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Do you think redline has made any difference in the noise at all? I’m going to have the dealer look at mine but I anticipate hearing the same news. I’ve had this truck since August of 2011 but rarely drive it so by the time this noise started my warranty only had 2 months left. I don’t think they should’ve charged you anything to take the manifold bolts if your truck was still under warranty. If your noise persist or gets worse I would stay on the dealer until they did something I’ve read on other forums of a few guys getting their engines replaced for the same problem. I don’t care how many times they say it I don’t think $45-$60,000 truck should sound like it’s wore out.

 

[BEAST19]

Do you think redline has made any difference in the noise at all? I’m going to have the dealer look at mine but I anticipate hearing the same news. I’ve had this truck since August of 2011 but rarely drive it so by the time this noise started my warranty only had 2 months left. I don’t think they should’ve charged you anything to take the manifold bolts if your truck was still under warranty. If your noise persist or gets worse I would stay on the dealer until they did something I’ve read on other forums of a few guys getting their engines replaced for the same problem. I don’t care how many times they say it I don’t think $45-$60,000 truck should sound like it’s wore out.

I agree.... howveee I paid only because I had longtube headers on it which was directly related to the supposed problem ...... but I didn’t have that noise prior to my redline change ... not saying it’s the cause , it could be coincidence ..... I’ll have a problem getting wRranty work done having headers on as they require a tune :-(


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[BEAST19]

Took truck out today again.... very faint noise as you demonstrated in your video .... went away after warmup but I can def tell header bolts were tightened . ... much less “ticking” in and around the engine bay.


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[pyramid2455]

Here’s how my Ram sounds warmed up. The knocking almost completely goes away.

 

[DeltaFlyer]

Had the same issue with my 2012 Outdoorsman. Broken exhaust bolts twice and the third time it was the Cam/Lifter issue. Had the cam and lifters replaced under warranty, thank goodness! This happened at about 69,000 miles. Just traded it off for a 2018 as I didn't trust that it wouldn't happen again. Giving RAM one more chance.

 

[BEAST19]

Had the same issue with my 2012 Outdoorsman. Broken exhaust bolts twice and the third time it was the Cam/Lifter issue. Had the cam and lifters replaced under warranty, thank goodness! This happened at about 69,000 miles. Just traded it off for a 2018 as I didn't trust that it wouldn't happen again. Giving RAM one more chance.

Ugh hope it doesn’t get to that point for me .


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[BEAST19]

Here’s how my Ram sounds warmed up. The knocking almost completely goes away.

I guess you could say that about exactly how mine sounds now ..... how’d you say you got it to go away? Tightening manifold/header. bolts?


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[pyramid2455]

I guess you could say that about exactly how mine sounds now ..... how’d you say you got it to go away? Tightening manifold/header. bolts?


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I haven’t tightened the header bolts yet. Just wanted to give a cold vs warm sound comparison. I had to have my lifters replaced also but that was a much different noise. Sounded like a metallic tap, my current warm up noise is a hollow knock that quiets to almost nothing when completely warm. I’m going to make an appointment to have dealer look at it tomorrow.

 

[BEAST19]

I haven’t tightened the header bolts yet. Just wanted to give a cold vs warm sound comparison. I had to have my lifters replaced also but that was a much different noise. Sounded like a metallic tap, my current warm up noise is a hollow knock that quiets to almost nothing when completely warm. I’m going to make an appointment to have dealer look at it tomorrow.

Sorry I misread your post. Your warmed up video is what mine sounds like cold ... as of right now it goes away entirely after up to operating temps . Mine def has loose header bolts with attributed to the some of the “ticking” I had but the knocking is def lessened too since the tightening . I wonder if you’ll get the same “piston slap” explanation.... not that I don’t believe it but mayb it’s in fact what our issue is.

Please keep me posted! And good luck!


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[mattstertx]

Ugh hope it doesn’t get to that point for me .


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Might as well drop a custom cam in it from Jay Greene like I’ll be doing soon! Eliminate all the problems.


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[BEAST19]

If I had a performance shop near me I’d b all over it! Know if any. ??? Upstate ny . Near Albany.


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[BEAST19]

yes it was the manifolds leaking. I had shorty headers installed and its now gone completely. The shop said the bolts had come loose causing the leak.

Dealer tightened my header bolts from my long tubes .... I still have noise ... video was taken today. Header bolts were tightened last week. Any thoughts.


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[mattstertx]

If I had a performance shop near me I’d b all over it! Know if any. ??? Upstate ny . Near Albany.


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No I don’t luckily for me I live an hour away from Jays shop so when I get the money I’ll just have them do the install


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[BEAST19]

No I don’t luckily for me I live an hour away from Jays shop so when I get the money I’ll just have them do the install


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Jealous .... I’m seriously contemplating trading in this truck .... that knock even tho mild is eating at me


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[mattstertx]

Jealous .... I’m seriously contemplating trading in this truck .... that knock even tho mild is eating at me


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The knock is honestly a common issue on these rams have you gotten the manifold bolts checked? I guarantee one is probably snapped causing a leak.


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[BEAST19]

I have long tube headers on it... had the dealer retorque them last week . “The hollow knock” is still there .... u guys really think the hollow knock is exhaust leak? Just sounds internal to me . Did u see me video for
Today ?

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[pyramid2455]

I have long tube headers on it... had the dealer retorque them last week . “The hollow knock” is still there .... u guys really think the hollow knock is exhaust leak? Just sounds internal to me . Did u see me video for
Today ?

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I know how you feel, and what makes it worse is no one I’ve had look at mine seems to difinitivly know exactly what it is. I hear exactly what you’re talking about the sound of 2 -2x4’s clicking together lightly. I’m going to have mine checked for exhaust leaks but I don’t believe that’s what is causing this noise. And from what I’ve seen and tried it’s looking unlikely any oil is going to fix it either.

 

[BEAST19]

I know how you feel, and what makes it worse is no one I’ve had look at mine seems to difinitivly know exactly what it is. I hear exactly what you’re talking about the sound of 2 -2x4’s clicking together lightly. I’m going to have mine checked for exhaust leaks but I don’t believe that’s what is causing this noise. And from what I’ve seen and tried it’s looking unlikely any oil is going to fix it either.

Agreed ... I don’t think exhaust leak is the culprit but by all means if u find out otherwise def message me ! I don’t want to miss that Info! Maybe I have a warped gasket that even with tightening the header bolts it’s still leaking ...


but I’m literally looking at shops for trade .... I’m too neurotic to have a hemi with all these noises .... can’t live with it lol I need a smooth running motor not a ticking time bomb .... just wish I didn’t dump all my money into mods lol I’m gonna lose my ass but I need some sanity back


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[pyramid2455]

I wonder if All these dealers think this noise is normal when you go to trade your truck in? Something tells me they’ll be singing a different song then.

 

[BEAST19]

I wonder if All these dealers think this noise is normal when you go to trade your truck in? Something tells me they’ll be singing a different song then.

Exactly ..... I’ll just make sure it’s warmed up when I go in thrrr for trade ... and I probably won’t be gettin a hemi :-(


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