Vibrating While Cruising at Highway Speeds, Among Other Things. Are They All Related? - Chevy Cobalt Forum / Cobalt Reviews / Cobalt SS / Cobalt Parts
Problems and Service Talk about any mechanical problems you are having

 
LinkBack Thread Tools Display Modes
post #1 of 4 (permalink) Old 03-27-2012, 07:34 PM Thread Starter
Newcomer
 
Join Date: Mar 2012
Posts: 6
Vibrating While Cruising at Highway Speeds, Among Other Things. Are They All Related?

Hey everyone, I've got a new problem that started happening last night.
I have a base model automatic 2005 Cobalt Sedan that starts trembling while cruising at 60mph/~2300RPM. I feel it mostly in my steering wheel, accel. pedal and, well, the entire car. I do not know what gear it's in. Occasionally, almost seldomly, my steering wheel shakes when I'm braking from similar speeds. Other than that my brakes work normally and smoothly.

Now, I have also been experiencing a noise coming from the Driver's front wheel. It's almost a metallic brushing sound, as if there's iron wool inbetween the rim and the brake. This usually happens after braking once or twice then getting back up to 30~40mph. Turning affects it and sometimes turning abruptly causes the noise to cease. People have suggested many things regarding this noise, telling me its the screamers on the brake pads or wheel bearings to the left control arm or the rotor rubbing with the backplate. I can't recreate the noise while its in lifted up in neutral, either.

What I've done: About a year after I've owned the car I sent it in for the power-steering recall, if thats any help. I've also recently slimed my tires because their pressure was dropping unusually fast. The slime helped out, and their pressures are sitting at ~40psi. When I torqued the tires I did the stars properly and torqued the lugnuts to about 80NM.

TL;DR: Car trembles @60MPH/~2300RPM. Steering wheel shakes occasionally when braking from similar speeds. Driver's front wheel making brushing sound after braking and accel back up to 30~40mph. Turning affects it, somtimes removes altogether.

BIG QUESTION! Are they all related and better yet, how do I fix? If you need more data regarding this, I would be happy to provide. Also, I don't know a lot about cars. Haha, otherwise I probably would be out troubleshooting more!

Thanks.
DrMassacre is offline  
Sponsored Links
Advertisement
 
post #2 of 4 (permalink) Old 03-27-2012, 09:01 PM
Super Moderator
YourCobalt.com Premium Member


 
Coby7's Avatar
 
Join Date: Oct 2011
Location: Magnetic Hill, New-Brunswick
Posts: 11,820
Garage
When is the last time you had a brake service? I think you're beyond the screamer, I think your even beyond the pad. Take the wheel off, if you have less than 1mm of pad left you need rotors and pads. If you put some slime in your tires you need to get them rebalanced. Also when you get a tire change you have to warn them that you put this stuff in.

Every minute spent angry is a happy minute lost for ever and ever!!!
Drives 2016 Cocoa Buick Encore 1.4L Turbo auto KL4CJDSB2GB652675
Drives 2016 Sunset Orange Trax LT1 1.4L Turbo auto 3GNCJPSB8GL142716

Never drive faster than your guardian angel can fly
Coby7 is offline  
post #3 of 4 (permalink) Old 03-27-2012, 09:11 PM Thread Starter
Newcomer
 
Join Date: Mar 2012
Posts: 6
Brake check was last couple oil checks ago. But, mann.. if that's the case. I'm going to feel like such a dumb****... Lesson learned I suppose, but still. Getting the tires rebalanced this week.

I'll check that out and report back. Thanks Coby
DrMassacre is offline  
 
post #4 of 4 (permalink) Old 03-28-2012, 07:15 AM
Chevy Customer Service
YourCobalt.com Premium MemberExpert
 
ChevyCustSvc's Avatar
 
Join Date: Nov 2010
Location: Detroit, Michigan USA
Posts: 794
Looking forward to hearing back, DrMassacre! Hope you're able to find out what's going on.

Sarah
GM Customer Service
ChevyCustSvc is offline  
Sponsored Links
Advertisement
 
Closed Thread

Tags
brushing noise , noise , vibrating , vibrating steering wheel

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome