Forum Register TCG Mobile Casino Live Posting Feed Garage Arcade Members List Calendar Search Today's Posts Mark Forums Read
Go Back   The Chicago Garage > The Garage > TCG Technical > GM Tech & Discussion

User Tag List

Like Tree13Likes

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old 03-09-2015, 01:01 PM   #1
I'm not one of your 'shit-hole' buddies!
 
blakbearddelite's Avatar
 
Join Date: Jun 2007
Location: South Elgin, IL
Posts: 24,476
Casino cash: $12455504
5.55 per day
Default G8 squeaking when DOD/AFM is activated

I search the G8 forums and couldn't find anything on it.

When cruising, the G8 starts squealing until I give the car a little gas. Then it goes away. Anytime it starts squealing, just tapping the gas makes it go away. That is why I think it has to do with the AFM/DOD.

It seems like as soon as the AFM engages, the car starts squealing. I know the G8's are pretty well known to have lifter issues.

I'm going to create a thread over on G8board.com to see if anyone else has experienced this.

Oh, and sometimes when the car does a hard shift, it squeaks only for the duration of the shift.
__________________
2015 Mustang GT - KB2.8 and other goodies
2015 Infiniti Q50
blakbearddelite is offline   Reply With Quote
Old 03-09-2015, 01:06 PM   #2
I'm not one of your 'shit-hole' buddies!
 
blakbearddelite's Avatar
 
Join Date: Jun 2007
Location: South Elgin, IL
Posts: 24,476
Casino cash: $12455504
5.55 per day
Default

Or could it just be a bad belt and the squeak goes away then there is tension?
blakbearddelite is offline   Reply With Quote
Old 03-09-2015, 02:58 PM   #3
syP
Not Banned
 
syP's Avatar
 
Join Date: May 2007
Location: Downers Grove, Illinois
Posts: 29,873
Casino cash: $39677005
6.73 per day
Default

shit you are tuned.. have FMS turn that crap off
__________________
.: 2017 Chevy Colorado Z71 4x4
.: 2017 Jeep Grand Cherokee Limited 5.7L




syP is online now   Reply With Quote
Old 03-09-2015, 02:59 PM   #4
 
Mook's Avatar
 
Join Date: May 2007
Location: Elgin
Posts: 160,036
Casino cash: $93025000
36.02 per day
Default

FMS has closed.

Maybe have Speed take a look at it? @School Boy
Bru, Yaj Yak, Bruce Jibboo and 2 others like this.
__________________
- TCG Owner & Operator -
Mook is offline   Reply With Quote
Old 03-09-2015, 03:00 PM   #5
 
Frank Dukes's Avatar
 
Join Date: May 2009
Location: Rockfordia
Posts: 4,527
Casino cash: $15314700
1.21 per day
Default

no kiddin? a little too big for their britches with that big shop they opened?
__________________
Frank Dukes is offline   Reply With Quote
Old 03-09-2015, 03:01 PM   #6
syP
Not Banned
 
syP's Avatar
 
Join Date: May 2007
Location: Downers Grove, Illinois
Posts: 29,873
Casino cash: $39677005
6.73 per day
Default

wow

I read FMS as VMS, as in vectormotorsports... they do a shit ton of camaro and g8s.. yet i still typed FMS... brain fart
syP is online now   Reply With Quote
Old 03-09-2015, 03:02 PM   #7
 
Mook's Avatar
 
Join Date: May 2007
Location: Elgin
Posts: 160,036
Casino cash: $93025000
36.02 per day
Default

Quote:
Originally Posted by Frank Dukes View Post
no kiddin? a little too big for their britches with that big shop they opened?
Dunno what happened.

This thread claims Brandon moved to California.

Fast Motorsports Woodstock Illinois - Corvette Forum
Mook is offline   Reply With Quote
Old 03-09-2015, 03:17 PM   #8
I'm not one of your 'shit-hole' buddies!
 
blakbearddelite's Avatar
 
Join Date: Jun 2007
Location: South Elgin, IL
Posts: 24,476
Casino cash: $12455504
5.55 per day
Default

Quote:
Originally Posted by syP View Post
shit you are tuned.. have FMS turn that crap off
I don't know that is 100% the issue. I'm still researching to see if anyone else has had a similar issue.
blakbearddelite is offline   Reply With Quote
Old 03-09-2015, 03:43 PM   #9
. .
 
boostedguy05's Avatar
 
Join Date: Dec 2010
Posts: 20,600
Casino cash: $23768000
6.57 per day
Default

__________________
Quote:
Originally Posted by Mike K View Post
You're either a barely functioning idiot or you're a brilliant genius. I must study you.
boostedguy05 is offline   Reply With Quote
Old 03-09-2015, 04:17 PM   #10
Bru
Super Moderator
 
Bru's Avatar
 
Join Date: May 2007
Posts: 36,839
Casino cash: $2147483647
8.29 per day
Default

Does it make the noise when hot, cold, all the time?
__________________
Bru is offline   Reply With Quote
Old 03-09-2015, 04:37 PM   #11
I'm not one of your 'shit-hole' buddies!
 
blakbearddelite's Avatar
 
Join Date: Jun 2007
Location: South Elgin, IL
Posts: 24,476
Casino cash: $12455504
5.55 per day
Default

It makes the noise only when cruising with enough throttle to maintain speed. As soon as I give the accelerator just a slight tap, the noise goes away. Then a few seconds later it will start up again.
blakbearddelite is offline   Reply With Quote
Old 03-09-2015, 04:45 PM   #12
syP
Not Banned
 
syP's Avatar
 
Join Date: May 2007
Location: Downers Grove, Illinois
Posts: 29,873
Casino cash: $39677005
6.73 per day
Default

check your balancer (crank pulley)... g8s are known for it to wobble like crazy.. when it gets bad enough it squeaks. blipping the throttle is enough to make it go away.
TonzKnock-G likes this.
syP is online now   Reply With Quote
Old 03-09-2015, 05:21 PM   #13
Cupcake
 
Ti28's Avatar
 
Join Date: Jan 2013
Location: Bartlett
Posts: 9,478
Casino cash: $1756519
4.00 per day
Default

Could be a lifter issue. Who knows; really hard to tell online.

Check all your belts and pulleys.

Seems really weird it only does it when AFM is on.
Ti28 is offline   Reply With Quote
Old 03-09-2015, 06:02 PM   #14
Spray the cubic inch at it!
 
School Boy's Avatar
 
Join Date: Mar 2011
Posts: 6,272
Casino cash: $11519200
2.06 per day
Default

If you are interested we can take a look at it for you. PM me if you would like.
__________________

R.I.P Ramon
99 Camaro SS - Speed Inc. turbo system
93 Mustang Notch - Turbo LM7
06 Ram - 5.9L Cummins
School Boy is offline   Reply With Quote
Old 03-09-2015, 06:07 PM   #15
Tame Racing Driver
 
SinisterSHO's Avatar
 
Join Date: Jul 2007
Posts: 8,675
Casino cash: $1920000
1.98 per day
Default

Go into engineering mode and it will tell you when AFM is on, see if it coincides with the noise.
rocket5979 likes this.
__________________
95 SHO
08 G8 GT
Drag racing is for fast cars, Road racing is for fast drivers

SinisterSHO is offline   Reply With Quote
Old 03-10-2015, 08:16 AM   #16
I'm not one of your 'shit-hole' buddies!
 
blakbearddelite's Avatar
 
Join Date: Jun 2007
Location: South Elgin, IL
Posts: 24,476
Casino cash: $12455504
5.55 per day
Default

Quote:
Originally Posted by SinisterSHO View Post
Go into engineering mode and it will tell you when AFM is on, see if it coincides with the noise.
Thanks! Confirmed with engineering mode, the squeaks only happen when AFM is on. I put it in manual mode (which locks out AFM) and there was no squeak. But in normal mode, it squeaks like crazy when the AFM is engaged.
blakbearddelite is offline   Reply With Quote
Old 03-10-2015, 08:21 AM   #17
I haz dat teddy bear smile.
 
10sec's Avatar
 
Join Date: Jul 2008
Posts: 23,021
Casino cash: $89203925
5.74 per day
Default

*3800 advice* They do have a volume knob for a reason *3800 advice*
__________________
2005 S2000
10sec is offline   Reply With Quote
Old 03-10-2015, 08:40 AM   #18
Some say.....
 
bikrboy128's Avatar
 
Join Date: Jul 2007
Location: Wheaton
Posts: 10,605
Casino cash: $27176645
2.42 per day
Default

does the belt tensioner have good tension? maybe the extra engine vibration from AFM is making the tensioner bounce, causing belt noise.
Jbhess likes this.
__________________
06 M6 GTO - stock garage queen - sold
12 Acura MDX - winter beater
03 Honda S2000 - 100 grand under the hood
05 Kawasaki STX-15f - braaap
79 Kawasaki KZ750 vertical twin - old and slow
82 Honda VF750 Magna - old and slightly faster
bikrboy128 is offline   Reply With Quote
Old 03-10-2015, 08:56 AM   #19
I'm not one of your 'shit-hole' buddies!
 
blakbearddelite's Avatar
 
Join Date: Jun 2007
Location: South Elgin, IL
Posts: 24,476
Casino cash: $12455504
5.55 per day
Default

Quote:
Originally Posted by bikrboy128 View Post
does the belt tensioner have good tension? maybe the extra engine vibration from AFM is making the tensioner bounce, causing belt noise.
I'll check that out this evening. Though I'm not sure how to gauge whether or not there is 'good' tension.
blakbearddelite is offline   Reply With Quote
Old 03-25-2015, 08:09 AM   #20
I'm not one of your 'shit-hole' buddies!
 
blakbearddelite's Avatar
 
Join Date: Jun 2007
Location: South Elgin, IL
Posts: 24,476
Casino cash: $12455504
5.55 per day
Default

My alternator took a dump on me over the weekend. I had it replaced and now the squeak is gone.
As far as i know, the belt wasn't changed.
Would that mean the alternator was the source of the squeak or that the mechanic adjusted the tensioner and that fixed the squeak?
blakbearddelite is offline   Reply With Quote
Old 03-25-2015, 08:55 AM   #21
. .
 
boostedguy05's Avatar
 
Join Date: Dec 2010
Posts: 20,600
Casino cash: $23768000
6.57 per day
Default

could have been either. i dont see a shop adjusting a tensioner without charging you.
boostedguy05 is offline   Reply With Quote
Old 03-25-2015, 09:12 AM   #22
I'm not one of your 'shit-hole' buddies!
 
blakbearddelite's Avatar
 
Join Date: Jun 2007
Location: South Elgin, IL
Posts: 24,476
Casino cash: $12455504
5.55 per day
Default

Ah, I didn't realize that was something that would take enough time to charge a customer. I thought it was just a simple turn of a nut or something.
blakbearddelite is offline   Reply With Quote
Old 03-25-2015, 09:16 AM   #23
Tame Racing Driver
 
SinisterSHO's Avatar
 
Join Date: Jul 2007
Posts: 8,675
Casino cash: $1920000
1.98 per day
Default

Quote:
Originally Posted by boostedguy05 View Post
could have been either. i dont see a shop adjusting a tensioner without charging you.
If they had to adjust the tensioner to remove the belt...
SinisterSHO is offline   Reply With Quote
Old 03-25-2015, 11:18 AM   #24
Some say.....
 
bikrboy128's Avatar
 
Join Date: Jul 2007
Location: Wheaton
Posts: 10,605
Casino cash: $27176645
2.42 per day
Default

it's an automatic tensioner, so adjustment isnt possible. was this done under warranty?
i've dealt with some really weird shit with these engines with cylinder deactivation, so a bad alternator being the cause isnt all that surprising.
bikrboy128 is offline   Reply With Quote
Old 03-25-2015, 12:43 PM   #25
I'm not one of your 'shit-hole' buddies!
 
blakbearddelite's Avatar
 
Join Date: Jun 2007
Location: South Elgin, IL
Posts: 24,476
Casino cash: $12455504
5.55 per day
Default

No extended warranty and the factory warranty ended last year.

blakbearddelite is offline   Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may 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



All times are GMT -5. The time now is 05:52 AM.


Powered by vBulletin® Version 3.8.1
Copyright ©2000 - 2019, Jelsoft Enterprises Ltd.
SEO by vBSEO 3.6.0
User Alert System provided by Advanced User Tagging v3.0.6 (Lite) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.
no new posts