[Solved] Vibrating noise coming from engine bay (video) - belt tensioner
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drive belt tensioner...
get a stethoscope on it
get a stethoscope on it
You were right, it was the belt tensioner. The pulley's fine, seems like it's the assembly
For anyone trying to figure it out in the future: 2 ways to find out.
1) remove the serpentine belt. start the engine. if noise is gone, problem solved. - figure out which pulley is making the noise. (spin them around, try to see if anything is loose)
2) to confirm it's the tensioner, you can take a wrench and push on the hex bolt while the engine is running (be careful not to drop it or get it caught up in the belt - you can get badly injured). If the noise goes away, you've found the source.
FYI - you don't need to take off the passenger wheel to properly put in the belt like some youtube videos say, it's actually quite easy to loop it around the pulleys if you stick your hands in there and keep the belt tight with one hand.
I made a diagram for other newbs, it took me a while to figure out what is what!
Hi there,
My belt tensioner is rattling but the pulley seems fine. I took the belt off and it spins nice and smooth.
The assembly however wiggles around left, right, up and down.
Is it a loose bolt I can just tighten? I don't really want to spend 200 on a whole assembly, and I hear aftermarket is garbage.
My belt tensioner is rattling but the pulley seems fine. I took the belt off and it spins nice and smooth.
The assembly however wiggles around left, right, up and down.
Is it a loose bolt I can just tighten? I don't really want to spend 200 on a whole assembly, and I hear aftermarket is garbage.
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Didnt you already have a thread on this? Did you replace the tensioner?
I believe you have the r18 with the hydraulic tensioner, right. If it has failed you will see it moving around while belt is on.
It can be a tough job, the Allen head bolt is hard to get to and is usually super tight. Plenty of youtube videos detailing the process.
Sent from my SM-G973U1 using Tapatalk
I believe you have the r18 with the hydraulic tensioner, right. If it has failed you will see it moving around while belt is on.
It can be a tough job, the Allen head bolt is hard to get to and is usually super tight. Plenty of youtube videos detailing the process.
Sent from my SM-G973U1 using Tapatalk
Hey, thanks for getting back to me.
Yeah it is the R18 with the hydraulic tensioner.
The other thread was about IDing the problem. This one is about solving it.
I haven't replaced it yet. I wanted to know if it could be a loose bolt under the water pump pulley, or if it was a faulty spring/damp mechanism.
I'm not worried about the job so much -- it looks straightforward -- but I want to know whether the assembly DOES have to be replaced.
It doesn't visibly move around with the belt on, but it does wiggle without the belt.
When the engine and belt are running, if I apply some tension with the wrench, the vibrating noise goes away.
Pulley is fine.
Thanks!
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Have the same issue with my 2015 honda civic ex so my car makes a noise right side of the passenger and it does it between those rpms while only accelerating if I go pass 1500 rpms it goes while but not completely
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So fixing the drive belt would help stop the noise cause my tensioner is brand new but still makes that noise any suggestions
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We're you able to figure out if it was the assembly or a bolt that was making the tensioner have play in it
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This thread outlines how to find the noise. Just follow it. You’ll find which pulley is making the noise
Sent from my iPhone 13 Pro while on the toilet.
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Yes, merged.
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I already changed, water pump, idler pulley, crankshaft pulley, tensioner and serpentine belt, and alternator and they are all fine but it still makes that noise
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It was already mentioned to you before on previous posts to take it to a professional. Throwing parts at a car usually doesn't work as you've already proven.
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And obviously I have and they say that the tensioner has play in it. But it doesn't make sense if it's been replaced with honda oem part
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I
Took it to a repair shop and they heard the noise and that the tensioner was moving which isn't supposed too and that part I literally replace 3x cause I had warranty, so it doesn't make sense why it continues to make the noise while driving
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Have a reputable shop that warranties their work do the job and if the noise persists than it's on them to followup and make things right versus the parts throwing technique.
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Well I am going bck this Friday to see what tge deal with this obnoxious noise, cause it's really annoying driving around
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Yes, the belt was changed.
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Yes, even the belt was replaced and still no luck getting rid of that noise. We even put a new bolt on the tensioner. 54mm bolt.
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