Cars > Forums > Tech Garage > brake problems

Official Motortopia Group - Cars

view group

Forum: Tech Garage

Topic: brake problems
Started by mrkporky Jan 10, 2010 at 12:14 am
Last post by Balboa777 Jul 15, 2011 at 10:52 pm
This topic has been viewed 1698 times and has 9 replies

Keywords:
Search in:	more search options

Topic: brake problems

Forums > Tech Garage > brake problems

Page 1 of 1: 1 Posts 1 – 10 of 10

#1 Jan 10, 2010 at 12:14 am

mrkporky

Total posts: 1

Send Message

Lets see if anyone can help me with this problem. No one has been able to help so far....I have a 350.1986 chevy Camaro ..It had front discs back drums..I changed the rear to a 1987 disc setup..I have changed the booster & mastercylinder for disc,disc.I changed the porportional vavle I have a high lift cam so besides the engine vacuum I added a vacuum pump for the booster..when I am on a wet road I cant even lock the wheels up..It feels like manual brakes ,push as hard as u can & still NO brakes.

My thought is to change the brake pads & calipers which are originals.But i really dont think this is the problem, But am lost... Any Help is appreciated.. Thank you ....Mark
#2 Jan 11, 2010 at 6:19 pm

1BadSC

Total posts: 12

Send Message

the front flex hoses have been know to cause a hard pedal the dont leak the hose collapses inside causing fluid to not pass through the hose
#3 Feb 4, 2010 at 6:08 pm

chumbrother

Total posts: 290

Send Message

do you have a check valve(one way vacum valve)in the hose or in the boosterm if so, check it, make sure its not backwards and that you can only blow thru it one way,and make sure you have strong engine vaume to the booster(which I am sure you do)....let me know,,,,mark aka. CB

Same Bat time.....
Same Bat channel.......
#4 Sep 29, 2010 at 12:28 am

khale

Total posts: 32

Send Message

If you step on the brake pedal and it feels like it's going too far down before you start to slow, you might have the following problems:
Low Brake Fluid Level
Contaminated Brake Fluid
Worn Brake Pads
Bad Brake Power Boost Unit
Something is Loose
Worn or Broken
Suspension Components
Worn Brake Pads
Brake Pads Vibrating
Bad Wheel Cylinder
Parking Brake Fails to Release
Bad Brake Pads
Bad Brake Disc
Car Out of Alignment
Worn Front Suspension
Low Brake Fluid Level
Contaminated Brake Fluid
Worn Brake Pads
Low Brake Fluid Level
Air in the Brake Fluid
Master Cylinder Bad
Vacuum Problems
Brake Line Obstruction
#5 Oct 7, 2010 at 12:50 am

ozie

Total posts: 20

Send Message

it could also be a bad brake caliper. at the first sign of damage calipers, have it replaced asap because this is what initiates the contact of the brake disc and pads for it to stop, making it the brake actuating part of the vehicle.

Chevrolet Truck Parts
#6 Oct 7, 2010 at 4:47 pm

chevygirl_78

Total posts: 10

Send Message

I am also having brake problems. I go to stop and the brakes pull in either direction, sometimes its a really hard pull, other times its not. I have replaced the booster and cylinder due to leaks, calipers because they locked up twice, and hoses (not sure if they were bad before) and that didnt fix the problem. I am thinking that the hoses may have been bad off the shelf, would i be better off using braided line instead of the rubber line? I dont have any unusual wear on the rotors or pads so I doubt that its the calipers.
#7 Oct 7, 2010 at 9:03 pm

LEGIONNAIRE

Total posts: 25

Send Message

Sounds like you did every thing but did you check the proportioning valve?

THE GOD'S OF HELL FIRE / AIR MOBILE!
#8 Oct 8, 2010 at 6:14 pm

chevygirl_78

Total posts: 10

Send Message

Quote:
Originally posted by LEGIONNAIRE Sounds like you did every thing but did you check the proportioning valve?

I was told that controlled front and rear not left and right so I didnt check that, or bother to replace it.
#9 Nov 29, 2010 at 8:08 pm

khale

Total posts: 32

Send Message

you did a great job on that analyzation. yup your right that it is the brakes. but i wonder if you can do that by yourself so i would recommend a source for your Car Repair where you can learn how to fix the brakes. goodluck.
#10 Jul 15, 2011 at 10:52 pm

Balboa777

Total posts: 60

Send Message

I also have a major vacumme leak in my 80 firebird frome the carb to the block, sometimes i get brakes, sometimes not, also as a result of it, the car wants 2 die when in gear and i press on the gas under 3mph, gatta coast and i dont want 2 take it on the highway like that, but with the help of my dad, itll get fixed soon.

2001 Dodge Durango
1980 Pontiac Firebird
1977 Chevrolet Custom Deluxe 20
1962 Chevrolet Chevy II Nova