Forums > Tech Garage > brake problems

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1. #1 Jan 10, 2010 at 12:14 am

   

   mrkporky

   Total posts: 1

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   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. #2 Jan 11, 2010 at 6:19 pm

   

   1BadSC

   Total posts: 12

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   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. #3 Feb 4, 2010 at 6:08 pm

   

   chumbrother

   Total posts: 290

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   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. #4 Sep 29, 2010 at 12:28 am

   

   khale

   Total posts: 32

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   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. #5 Oct 7, 2010 at 12:50 am

   

   ozie

   Total posts: 20

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   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. #6 Oct 7, 2010 at 9:03 pm

   

   LEGIONNAIRE

   Total posts: 25

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

    

   THE GOD'S OF HELL FIRE / AIR MOBILE!

7. #7 Nov 29, 2010 at 8:08 pm

   

   khale

   Total posts: 32

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   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.
    

    

8. #8 Jul 15, 2011 at 10:52 pm

   

   Balboa777

   Total posts: 60

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   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

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Forums > Tech Garage > brake problems