The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > 47 - Current classic GM Trucks > The 1967 - 1972 Chevrolet & GMC Pickups Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 05-28-2008, 05:09 AM   #1
SuperCheyenne72
Registered User
 
SuperCheyenne72's Avatar
 
Join Date: Dec 2001
Location: Dallas, TX USA
Posts: 80
How Bad Are My Brakes?

My brake light has been off and on for a month now and it just went solid red this past week. I've been too lazy to bend over and visually inspect them until today. I notice my driver side pads are fine, but my passenger side has a nice fingernail deep groove in the rotor.

Does the rotor need to be replaced now or can it be machined out?
Will the rotor be fine if I just replaced the pads, or could the groove act as a nifty little cooling function just like those rotors I see with the holes in them?
__________________
'72 Super Cheyenne LWB
  • 350 V8 w/ TH400
  • MSD Pro Billet HEI Dist. w/ Splitfire plugs
  • Edelbrock Performer Intake Manifold and dual exhuast glasspaks
  • Edelbrock Performer 750 cfm
SuperCheyenne72 is offline   Reply With Quote
Old 05-28-2008, 05:15 AM   #2
Longhorn Man
its all about the +6 inches
 
Longhorn Man's Avatar
 
Join Date: Jan 2001
Location: Hilliard Ohio
Posts: 2,693
Re: How Bad Are My Brakes?

if the light is on, you have more problems than what you can see, it indicates a pressure problem between front and back.
Longhorn Man is offline   Reply With Quote
Old 05-28-2008, 08:25 AM   #3
cobb_ben
Registered User
 
cobb_ben's Avatar
 
Join Date: Feb 2004
Location: Fort Leonard Wood Mo
Posts: 299
Re: How Bad Are My Brakes?

If you have to ask... that means that they are bad. You should get them fixed!
__________________
'69 Chevy C10
400sb-350 crank 400 destroker!!! 377
2.02 dart pro1 alum.heads
msd, holley db
hooker pro-comps-3in exh.
3 spd. saginaw-3.73posi
Flat Bed...want Reg bed...trades?
cobb_ben is offline   Reply With Quote
Old 05-28-2008, 09:39 AM   #4
HoupPhotography
Registered User
 
Join Date: Feb 2008
Location: Phoenix, Az
Posts: 1,204
Re: How Bad Are My Brakes?

Quote:
Originally Posted by Longhorn Man View Post
if the light is on, you have more problems than what you can see, it indicates a pressure problem between front and back.



Quote:
Originally Posted by cobb_ben View Post
If you have to ask... that means that they are bad. You should get them fixed!




The rotors can be turned if there is enough material left to machine. DO NOT just put new pads on it, as Longhorn mentioned, you need to completly go throught the brake system.....period!


Brakes are a big deal dude, it's not just you, but people seem to put them off more than say a leaking rad hose. When your light came on, you should of checked them that day or the next! Being lazy could of killed someone, seriously!
__________________
R.I.P. Scott Kalitta
HoupPhotography is offline   Reply With Quote
Old 05-28-2008, 03:39 PM   #5
chris71
Registered User
 
chris71's Avatar
 
Join Date: Oct 2007
Location: Sykesville MD
Posts: 357
Re: How Bad Are My Brakes?

most likely its the master cylinder, then the prop valve, longhorn man is right when there is a change in pressure the light comes on. mc's are only like 30 bucks at your local parts store
__________________
'55 3100 2nd series short-bed stepside
'70 Corvette coupe stingray
'71 Chevelle 2-dr coupe SS clone
'71 C10 long-bed fleetside
'83 long-haired brunette wife
chris71 is offline   Reply With Quote
Old 05-28-2008, 03:54 PM   #6
truckdude239
Senior Member
 
truckdude239's Avatar
 
Join Date: Sep 2005
Location: Lewisville, Nc
Posts: 10,233
Re: How Bad Are My Brakes?

brakes are over rated no seriously light means a pressure problem that needs to be addressed asap as to the grooves int he rotors thats your call if to replace them or just slap new pads on. if you do a pad slap and don't turn the rotors or replace them then you will most likely have brake noise and your pads will have a groove wear in them.
__________________
David fuller
Ase Certified Mechanic
Click here to help support our board!!


1971 Chevy c-10 under going a 4.8l LSx swap

Build Thread http://67-72chevytrucks.com/vboard/s...d.php?t=421305

2007 Honda Accord my daily 145kmiles
2002 Honda Accord 4 door With 330k(sisters car)
2005 toyota Avalon 228k( brothers car)
2002 Sububran 5.3 245k
2000 Tahoe 5.3l 378

General manager for Marco's Carwash & lube
truckdude239 is offline   Reply With Quote
Old 05-28-2008, 05:40 PM   #7
SuperCheyenne72
Registered User
 
SuperCheyenne72's Avatar
 
Join Date: Dec 2001
Location: Dallas, TX USA
Posts: 80
Re: How Bad Are My Brakes?

Well I decided to take it to a brake shop this morning. I've owned the truck for 7 years and have only done pad changes on it. I figured it was time for a complete diagnostic.

Take it from me, when someone asks "how bad are my brakes?" and says "the brake light came on..." it could result in the following:

- Rear drum shoes, eating into drums
- Rear drums, both shot
- Right rear drum cylinder, leaking
- Front right rotor, needs replacement
- Front right bearings, loose and shot
- Front left bearings, missing washer (my fault when installed)
- Front pads, 20% life left
- Front calipers, freezing up
- All 4 shocks, shot probably 10 yrs. old

Grand Total $1,330.00 plus tax
__________________
'72 Super Cheyenne LWB
  • 350 V8 w/ TH400
  • MSD Pro Billet HEI Dist. w/ Splitfire plugs
  • Edelbrock Performer Intake Manifold and dual exhuast glasspaks
  • Edelbrock Performer 750 cfm
SuperCheyenne72 is offline   Reply With Quote
Old 05-28-2008, 09:49 PM   #8
hdflstf
Registered User
 
hdflstf's Avatar
 
Join Date: Oct 2007
Location: Desert Southwest
Posts: 540
Re: How Bad Are My Brakes?

Quote:
Originally Posted by SuperCheyenne72 View Post
Well I decided to take it to a brake shop this morning. I've owned the truck for 7 years and have only done pad changes on it. I figured it was time for a complete diagnostic.

Take it from me, when someone asks "how bad are my brakes?" and says "the brake light came on..." it could result in the following:

- Rear drum shoes, eating into drums
- Rear drums, both shot
- Right rear drum cylinder, leaking
- Front right rotor, needs replacement
- Front right bearings, loose and shot
- Front left bearings, missing washer (my fault when installed)
- Front pads, 20% life left
- Front calipers, freezing up
- All 4 shocks, shot probably 10 yrs. old

Grand Total $1,330.00 plus tax
Sounds pretty close to mine and I didn't even get the light -- yet.. Mine's on the Brake Job from Hell thread. I'm at day 4 and am waiting on more parts.

At least you are getting it fixed before you ran into something or someone.
hdflstf is offline   Reply With Quote
Old 05-29-2008, 02:56 AM   #9
HoupPhotography
Registered User
 
Join Date: Feb 2008
Location: Phoenix, Az
Posts: 1,204
Re: How Bad Are My Brakes?

Quote:
Originally Posted by SuperCheyenne72 View Post
Well I decided to take it to a brake shop this morning. I've owned the truck for 7 years and have only done pad changes on it. I figured it was time for a complete diagnostic.

Take it from me, when someone asks "how bad are my brakes?" and says "the brake light came on..." it could result in the following:

- Rear drum shoes, eating into drums
- Rear drums, both shot
- Right rear drum cylinder, leaking
- Front right rotor, needs replacement
- Front right bearings, loose and shot
- Front left bearings, missing washer (my fault when installed)
- Front pads, 20% life left
- Front calipers, freezing up
- All 4 shocks, shot probably 10 yrs. old

Grand Total $1,330.00 plus tax

Wow!! Longhorn wasn't kidding whenhe said, "you have more problems that you can see" .... That's cool your getting them fixed, but you will need to do one of two things when you drive it again with all the new brake parts, wear a helmet or seatbelt, because when you step on the brakes your gonna smack your mellon on the windshield....
__________________
R.I.P. Scott Kalitta
HoupPhotography is offline   Reply With Quote
Reply

Bookmarks


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


All times are GMT -4. The time now is 01:53 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com