Go Back   Tahoe Forum - Chevy Tahoe Forum > 1994 - 1999 Chevrolet Tahoe/GMC Yukon Year Models > General Tahoe/Yukon Discussion Forum

Register to remove these ads.
General Tahoe/Yukon Discussion Forum General Discussion Forum



Reply
 
Thread Tools Display Modes
Old 04-21-2012, 10:52 AM   #1
ma87k5
Full Access Member
 
Join Date: Apr 2011
Location: Chicopee, Ma
Posts: 60
ma87k5 is on a distinguished road
Default Pusling brakes

I have pulsing drum brakes. I used the e-brake to verify this. I bought new drums thinking it was them. Um nope. So I took a tire off and drum off and started my truck and put it in drive. There is about a 1/16 or so warpage on the axle flange. Will that cause the pulsing in the drum brakes? Thanks

Last edited by ma87k5; 04-22-2012 at 10:14 AM.
ma87k5 is offline   Reply With Quote
Old 04-24-2012, 10:00 PM   #2
ma87k5
Full Access Member
 
Join Date: Apr 2011
Location: Chicopee, Ma
Posts: 60
ma87k5 is on a distinguished road
Default

WOW
I can't believe that nobody knows the answer.
ma87k5 is offline   Reply With Quote
Old 04-24-2012, 10:08 PM   #3
clkelley
Super Moderator
 
clkelley's Avatar
 
Join Date: Jul 2011
Location: Galax, Virginia
Posts: 1,111
clkelley is on a distinguished road
Default

Sorry I missed this thread. First, what year truck do you have? But pulsing brakes more than likely warped rotors if you have drum brakes on the back. If you have discs all the way around and hydroboost, it COULD still be warped rotors, but I would attempt to fully flush the power steering and brake fluid before condemning the rotors or pads or parking brake.
clkelley is offline   Reply With Quote
Old 04-24-2012, 11:05 PM   #4
ma87k5
Full Access Member
 
Join Date: Apr 2011
Location: Chicopee, Ma
Posts: 60
ma87k5 is on a distinguished road
Default

I have a 99 tahoe. I posted in the wrong year forum. But brakes are brakes. It's not the rotors, I feel no pulsing in the steering wheel. And it's not the drums. There can't be the same pulsing with the new drums as with the old drums. I used the e-brake to slow me down and the pulsing was there and stopped using the e-brake and the pulsing went away. I think that the axel flange should be straight. Am I right about the axel flange? Thanks
ma87k5 is offline   Reply With Quote
Old 04-25-2012, 09:15 PM   #5
ILoveMyHoe
Tahoeforum Apprentice Member
 
Join Date: Dec 2011
Posts: 35
ILoveMyHoe is on a distinguished road
Default

My 07 does this also, guy at the shop said eventually they would wear down and correct themselves. No difference so far.
ILoveMyHoe is offline   Reply With Quote
Old 04-27-2012, 09:10 AM   #6
NCFD4303
Super Moderator
 
NCFD4303's Avatar
 
Join Date: Aug 2011
Location: Corning NY
Age: 36
Posts: 139
NCFD4303 is on a distinguished road
Default

it sounds like the rear shoes are out of adjustment. You can purchase a new set of shoes and that should take care of it.
NCFD4303 is offline   Reply With Quote
Old 04-27-2012, 11:05 AM   #7
clkelley
Super Moderator
 
clkelley's Avatar
 
Join Date: Jul 2011
Location: Galax, Virginia
Posts: 1,111
clkelley is on a distinguished road
Default

Quote:
Originally Posted by ma87k5 View Post
I have a 99 tahoe. I posted in the wrong year forum. But brakes are brakes. It's not the rotors, I feel no pulsing in the steering wheel. And it's not the drums. There can't be the same pulsing with the new drums as with the old drums. I used the e-brake to slow me down and the pulsing was there and stopped using the e-brake and the pulsing went away. I think that the axel flange should be straight. Am I right about the axel flange? Thanks
Okie Dokie, first, brakes are different on different models, they are not all the same, some have simple brake master cylinder set ups, while later models have a hydroboost assisted master cylinder that provides better brake pressure for firmer braking.

When you put the new drums and shoes on, did you also replace the old rear drum hardware inside there? It is quite common for the adjustment hardware to wear out in the front calipers as well as the rear drums from heat cycling, when this happens, it can be almost impossible to get the rear shoes properly adjusted. This could be and most likely is your issue if you did not replace that hardware.

I highly doubt the axle flange is causing your issue.
clkelley is offline   Reply With Quote
Old 04-27-2012, 11:06 AM   #8
clkelley
Super Moderator
 
clkelley's Avatar
 
Join Date: Jul 2011
Location: Galax, Virginia
Posts: 1,111
clkelley is on a distinguished road
Default

I have also moved this thread to the appropriate forum for your year truck...
clkelley is offline   Reply With Quote
Old 04-27-2012, 08:55 PM   #9
ma87k5
Full Access Member
 
Join Date: Apr 2011
Location: Chicopee, Ma
Posts: 60
ma87k5 is on a distinguished road
Default

Thank you for moving my thread. This weekend I'll put new hardware in.
ma87k5 is offline   Reply With Quote
Old 04-27-2012, 10:34 PM   #10
lesterl
Full Access Member
 
Join Date: Oct 2011
Location: MO
Posts: 2,595
lesterl is on a distinguished road
Default

So did you have a warped axle shaft?
lesterl is offline   Reply With Quote
Reply

Bookmarks


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

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

Forum Jump



 
Advertisement

Other Sponsors






All times are GMT -4. The time now is 04:18 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2018, vBulletin Solutions, Inc.
All rights reserved and copyrighted
Fully Driven Auto Network
GM Truck Forum
Ford Raptor Forum
Dodge Ram Forum
Chevy Cobalt Forum
Chevy Camaro Forum
FJ Cruiser Forum
Ford Truck Forum
88-98 GM Truck Forum
73-87 Gm Truck Forum
Ford Expedition Forum
Chevy Equinox Forum
Chevy Cruze Forum
Jeep Liberty Forum
Jeep Forum
Dodge Ram SRT10 Forum
Chrysler 200 Forum
Scion xD Forum
Scion xB Forum
Dodge Challenger Forum
SRT Forum
Nissan Titan Forum
Buick Enclave Forum
Cadillac Forum
Cadillac XTS Forum
TRD Forum
Central US Mopars
Southeast Mopars
Cadillac CTS Forum
Oklahoma Dodge Ram Club
Softball Forum