Howling/Screeching sound
Thread Starter
Cruising
Joined: May 2018
Posts: 10
Likes: 1
From: Orland Park IL
Howling/Screeching sound
Hey there my vette family,
just got my car back from the shop being rebuilt after a year. Engine sounds good but when I drive over 25/30mph, I hear almost like a howling/tire screeching sound.
When I told the mechanic he said drive it this weekend snd see if it goes away.
I’ve talked to a few guys who said DO NOT drive it as it could be a larger issue.
Anyone have any insight? I just wanna know if I should drive it. Sounded like it got worse yesterday after driving it to the gas station.
just got my car back from the shop being rebuilt after a year. Engine sounds good but when I drive over 25/30mph, I hear almost like a howling/tire screeching sound.
When I told the mechanic he said drive it this weekend snd see if it goes away.
I’ve talked to a few guys who said DO NOT drive it as it could be a larger issue.
Anyone have any insight? I just wanna know if I should drive it. Sounded like it got worse yesterday after driving it to the gas station.
Popular Reply
May 1, 2021, 01:45 PM
Race Director
Joined: Jul 2015
Posts: 13,082
Likes: 3,399
From: SW Florida.
i find i get less screeching sounds if i never tell her about parts i am buying...
Had a 1976 L-82, 4-sp
Joined: Mar 2011
Posts: 5,338
Likes: 1,213
From: Some days your the dog and some days your the hydrant.
Royal Canadian Navy
Take it back to the mechanic and tell him to fix it. Also, are your belts properly aligned and tensioned? They can make a nice screeching sound.
Last edited by resdoggie; May 1, 2021 at 09:18 AM.
Thread Starter
Cruising
Joined: May 2018
Posts: 10
Likes: 1
From: Orland Park IL
I’m not entirely sure but I plan on taking it back. They had the car for a year. I tried to upload the video of the sound but it doesn’t allow it here I guess.
I just didn’t know if I should drive it to let it run and move?
I just didn’t know if I should drive it to let it run and move?
Old Pro Solo Guy
Joined: Dec 2017
Posts: 8,043
Likes: 4,396
From: Marlton NJ
It really depends on what is causing the screech. Hopefully it is just belts. Run it with the hood open and listen. Rev it a little.
Figure out if it is related to engine speed, or car speed.
To post a video you need to post it on you tube first. Then post a "link" here.
That could help us help you.
The squeeling in my son's car 2 days ago turned out to be the rear wheel bearings. Pretty loud at 20-40 mph. Woof-woof noise.
Figure out if it is related to engine speed, or car speed.
To post a video you need to post it on you tube first. Then post a "link" here.
That could help us help you.
The squeeling in my son's car 2 days ago turned out to be the rear wheel bearings. Pretty loud at 20-40 mph. Woof-woof noise.
Thread Starter
Cruising
Joined: May 2018
Posts: 10
Likes: 1
From: Orland Park IL
I love this group! So the sound only happens during movement. I have the video and now have the link thanks to you all! It sounds like it’s the right rear wheel area. They did do work to the control arm back there I believe (it got 20K worth of work)
Does this help?
It gets louder at faster speeds
Does this help?
It gets louder at faster speeds
Burning Brakes
Joined: Oct 2001
Posts: 921
Likes: 200
From: TX
Wow! Sounds like bad bearings. Get a Cen-tech infrared thermometer and check temperature after running. Around 130 F is normal for a differential, hub a little less. You can feel the heat with your hand too.
I bet GTR on the forum can help you with this.
VS
I bet GTR on the forum can help you with this.
VS
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Safety Car
Joined: Dec 2012
Posts: 3,802
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From: Summerville SC
You spent a lot of time and money. The only place I would drive it is back to his shop and let him figure it out. Otherwise he will blame you and you will have a big fight on your hands. For what you paid you shouldn’ have to diagnose anything. My $.02 but I am a grumpy old man at times. Or sommy kids tell me
Had a 1976 L-82, 4-sp
Joined: Mar 2011
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From: Some days your the dog and some days your the hydrant.
Royal Canadian Navy
Race Director
Joined: Mar 2017
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From: Virginia
$20K worth of work? Do you have an itemized invoice you can post, especially anything related to the trailing arms, rear suspension, brakes, and differential?
I'd have also guessed bad wheel bearing.
I'd have also guessed bad wheel bearing.
Is my vette stock?? HAHA
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what was it in the shop for. If it wasnt for wheel bearings then he may not want to deal with it. I would drive it around the block just enough to get whatever is making that noise hot and then use the infrared thermometer gun trick. It sounds most like a wheel bearing to me, not a screech, more of a howl and it isnt engine related because of the rpm changes. How far is it to the mechanic from you. You can also just touch the center of the rear hubs and the heat transfer may be noticible so long as you arent heating the rear discs up alot. no heavy braking during a test drive.
Thread Starter
Cruising
Joined: May 2018
Posts: 10
Likes: 1
From: Orland Park IL
The mechanic is about 15 minutes from me. They did the back right wheel control arm, the invoice I do have, I’ll see if it’ll let me post.
I guess my question boils down to should I even attempt to drive it to see if it needs running or should I wait?
I guess my question boils down to should I even attempt to drive it to see if it needs running or should I wait?
Le Mans Master
Joined: Aug 2017
Posts: 8,336
Likes: 2,810
From: Cool Northern Michigan
See post # 1. Engine sounds good. So we can assume it didn't sound good before the shop had it for a yr.
There is an old saying DeanMartin,
If It Ain't Broke, Fix It Until It Is.
But in your case:
If it ain't fixed, break it until it is.
There is an old saying DeanMartin,
If It Ain't Broke, Fix It Until It Is.
But in your case:
If it ain't fixed, break it until it is.
Last edited by HeadsU.P.; May 2, 2021 at 05:49 PM.
Thread Starter
Cruising
Joined: May 2018
Posts: 10
Likes: 1
From: Orland Park IL
They had to put a new engine, power steering, frame work, etc. I was upset they had it for a year but the car sounds a ton better under the hood.
This issue was as soon as I left snd I picked up at the end of the day so I couldn’t get back there in time to drop it back off. It’s frustrating cause you would think this would be perfect
This issue was as soon as I left snd I picked up at the end of the day so I couldn’t get back there in time to drop it back off. It’s frustrating cause you would think this would be perfect
Race Director
Joined: Mar 2017
Posts: 11,933
Likes: 4,497
From: Virginia
I'd call and confirm what the "repair" was, then bring the car back.