2008 Civic SI - High pitched noise from engine

Pfister07
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Joined: Sat Jul 17, 2010 2:18 pm

2008 Civic SI - High pitched noise from engine

Post by Pfister07 »

This is my first post, so it comes along with some pics of my 'new to me' 2008 Civic SI. So far I love it!

Anyway, down to business... I had a high pitched noise that almost sounded like a mosquito in my ear every time I hit the accelerator. The dealer said, they all make that sound and nothing is wrong. I thought that was odd, but I started reading forums and found that many many people have had this same issue so I started to believe him. Well, 2 months later and I thought I was going to go crazy. I wanted to hear my engine and exhaust dammit! Not this screetch.

I found posts about people who have had their differential fixed, changed out, etc and that seemed to fix the issue. Others didn't have such luck and many were told what I was told, "That it was common among SI's and not an issue". I realized that my sound wasn't only made when the car was in gear. It did it in neutral as well so that made me think that it couldn't be the differential and perhaps a belt or pulley.

I decided I might as well try and milk my warranty while I still had it so I took him in. After about 20 mins, they came back and said it was the Tensioner Pulley. They got the part in and the next day had it swapped out. IT's A MIRACLE! No more crappy sound and all I hear is my engine and exhaust purring away.

GREAT NEWS! Hopefully this helps someone. I am sure there are many things that would cause this issue but hopefully this will help someone out in their deduction process.

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budget_crx
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2008 Civic SI - High pitched noise from engine

Post by budget_crx »

Can I ask how many miles were on it when you started noticing the sound?
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99BlackHatch
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2008 Civic SI - High pitched noise from engine

Post by 99BlackHatch »

Lame... I was hoping it was a supercharger.
I'm still a neighborhood ASSHOLE!

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Pfister07
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Joined: Sat Jul 17, 2010 2:18 pm

2008 Civic SI - High pitched noise from engine

Post by Pfister07 »

budget_crx;239335 wrote:Can I ask how many miles were on it when you started noticing the sound?
I am not sure when the sound started as it was already happening when I bought the car 2 months ago... It has 42k miles on it. Are you having the same issue?
99BlackHatch;239338 wrote:Lame... I was hoping it was a supercharger.
I was hoping it was a supercharger too... But alas, I DONT HAVE ONE! haha

YET! :biglaugh:
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Clayton
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2008 Civic SI - High pitched noise from engine

Post by Clayton »

i could use a new tensioner on mine i just plan on replacing it when i need a belt ive had mine for 4 years and its always sounded the same
Pfister07
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Joined: Sat Jul 17, 2010 2:18 pm

2008 Civic SI - High pitched noise from engine

Post by Pfister07 »

06sik20z3;239354 wrote:i could use a new tensioner on mine i just plan on replacing it when i need a belt ive had mine for 4 years and its always sounded the same
When they told me that that is what was making the sound, I was kind of pessimistic that changing it would fix the sound completely. I thought the sound was too loud and nasty just to be the pulley, but that definitely was it. Also, I didn't realize how annoying it was until the sound was gone. It is like driving my Lexus IS300 again. Quiet as heck!
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v-tecivic
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2008 Civic SI - High pitched noise from engine

Post by v-tecivic »

99BlackHatch;239338 wrote:Lame... I was hoping it was a supercharger.
i thought the same too. i feel let down.
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Pfister07
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Joined: Sat Jul 17, 2010 2:18 pm

2008 Civic SI - High pitched noise from engine

Post by Pfister07 »

v-tecivic;239360 wrote:i thought the same too. i feel let down.
Sorry to disappoint! Next time my car effs up I'll be sure to make sure it is something cooler! haha :dontknow: What do you want from me?! :PDT_kap:

Just kiddin, any feedback is better than no feedback! I'm new to the forum world and loving it so far...
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Silver Knight
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2008 Civic SI - High pitched noise from engine

Post by Silver Knight »

99BlackHatch;239338 wrote:Lame... I was hoping it was a supercharger.
this.


v-tecivic;239360 wrote:i thought the same too. i feel let down.
annnnnnd this.

:frown:
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a1j7g
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2008 Civic SI - High pitched noise from engine

Post by a1j7g »

do you have a race header on the vehicle. have you tried 8thcivic.com?