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rod knock? please help n54
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04-12-2023, 04:52 AM | #1 |
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rod knock? please help n54
https://youtu.be/urld1enSH-4
Is this a rodknock sound, comes from under the car. Car drives fine nothing bad with it, its a xdrive. Asked ”bmwfanatic” he Said it was nothing that sounds bad. But Iam a scared man. Please help |
04-13-2023, 04:26 PM | #4 | |
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Here is a better video |
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04-14-2023, 12:50 PM | #5 |
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The noise above the intake manifold sounds normal.
When you go to the exhaust side, it sounds kind of bad. Possibly injector noise, but I’m not so sure. Does the noise quiet down after the car is warmed up and driven? You can try an engine oil flush additive, ha he the oil and add oil treatment with the new oil. That seems to keep my engines quiet. |
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04-14-2023, 01:01 PM | #6 |
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Tough to say the first video doesn't sound nice. Second video sounds normal but like Serf says left side seems a bit to knocky. If you rev the car does it increase? Also, I would try to remove the belt and run the car to see if noise still present just as a basic troublehsooting step. You never know...
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04-14-2023, 01:08 PM | #7 | |
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04-14-2023, 01:09 PM | #8 | |
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04-14-2023, 01:12 PM | #9 |
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04-14-2023, 01:36 PM | #10 |
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I can get a video tomorrow. Thank You for Helping me. I can add it sounds normal when started then when it gets warm and lower the rpms it start ticking.
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04-14-2023, 01:47 PM | #11 |
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04-14-2023, 01:53 PM | #12 | |
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For the difficulty, I mean hard work is subjective you know... I'd recommend you watch DIYs and should give you an idea. To me taking of the belt is pretty easy but if you never work on your car or don't have the tools might not be. |
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04-14-2023, 01:54 PM | #13 |
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Also found this Therese w the same sound as mine.
But his goes away. The video linked in the post is super alike my sound. N54 was a bad choice for a person that have driven a bad 20tdi Audi before and all noice was bad noice |
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04-14-2023, 01:59 PM | #14 | |
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04-14-2023, 02:09 PM | #15 | |
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Yes I'm pretty sure the ticking would be higher if it's an accessory because the belt spins faster as you rev the car. But do understand based on your noise and symtpoms it most likely seem to be coming from the engine, and I believe with rod knock, it usually gets worse as the engine warms up. But like I said, worth a try you never know. |
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04-14-2023, 02:21 PM | #16 | |
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04-14-2023, 02:33 PM | #17 | |
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04-14-2023, 03:52 PM | #18 |
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My car had the ticking lifter issue (before I got the head replaced under warranty years ago), and it sounded a bit like this, except it wasn't quite that loud.
What I will say is that since the sound very clearly sounds different when the OP moves the microphone from the intake (normal-sounding) to the head (loud-ticking), I'm going to guess that the issue is something in the head. That could run the gamut from lifters to timing chain. It's really not going to be diagnosed without taking off the valve cover. But since the OP doesn't really seem to have tools or be inclined to take his car apart (good idea if he doesn't have tools or experience...), he should probably get the car to someone who knows what they're doing. Otherwise, we could all sit around and play guessing games indefinitely. OP, do you have a mechanic? |
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04-14-2023, 04:14 PM | #19 | |
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04-14-2023, 05:11 PM | #20 | |
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If you aren't confident in doing the work yourself, you really need to take the car to a trusted (by you) independent mechanic. Taking it to BMW (at least here in the US) would be a waste of time and money since you would not likely be willing to have them perform the service that they recommend after charging you $300 for diagnosis. |
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04-14-2023, 05:44 PM | #21 | |
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04-15-2023, 06:16 AM | #22 | |
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Here u guys go. A video where I start the car and it dosnt sound ”bad” then after it goes down in rpm it comes ”on” and i also rev it to 3k rpm for the person that wanted to hear it. |
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