Question about 1997 Honda Accord

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Hard brake pedal, replaced brake booster and has plenty of vacuum

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See if the hose that come to the brake booster if it is not twisted,this can make that.see if there is no leakage with the hose.

Posted on Feb 02, 2010

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1 Answer

Brake problems


from your description , the problem is in the brake booster
nothing should have popped out as boosters either have the link back to the pedal or a rod from the pedal that goes into the booster
the valve as you call it could be the unit that controls the amount of vacuum needed to operate the booster diaphragm and with that not operating correctly you have no boost assist for the pedal

Jan 09, 2016 | Cars & Trucks

4 Answers

Why is it hard to push on the brakes


The most obvious cause for a hard pedal is simply not enough vacuum. Check the brake power booster by pumping on the brake pedal while the car isn't running. Continue pumping until you've "bled off" the vacuum from the booster. Hold the pedal down while you start the car. The pedal should go down a bit more beneath your foot. If it doesn't, then you should examine the connection between the vacuum hose of the brake power and the engine's vacuum.
Replace the brake power booster if the connection's fine, which would fix the hard brake pedal problem.

It may be your calipers need replaced. Check them for signs of wear. Look at the metal spring where the brake pads sit.
Apply tension to the pad and see whether you hear a pop. If you do, the brake pad is moving too much on the bracket. Replace the caliper. This could help the hard brake pedal.

Jul 09, 2014 | 2000 Isuzu Rodeo

1 Answer

Why is it so hard to apply brake pedal?


_______power brake booster, check vacuum to booster and the check valve for brake booster. primary symtom is high hard pedal that requires greater then normal pedal pressure to stop car. testing booster= pump brakes several times with engine off to deplete stored vacuum. turn on engine with pushing slightly on brake pedal. you should be able to feel the pedal fade away a bit, and then become firm. But not hard. if you feel nothing at the pedal when engine starts. Brake booster is not working. Good-day! make sure vacuum is going to booster with engine running. it may just be a bad vacuum line or check valve.

Apr 30, 2014 | 1984 Buick Skyhawk

1 Answer

Clogged line


When your brake pedal is hard, you may need to check your brake booster and the vacuum line to the brake booster if their is sanction, if their is sanction in vacuum pipe to the brake booster you need to have your brake booster replaced.
You also need to check your vacuum pump and the piping.

Oct 18, 2013 | Nissan Cars & Trucks

1 Answer

I replaced the master cylinder and brake pads and my brakes still dont work on my 1998 chrysler sebring


Have you tested your brake booster and your calipers?Your brake booster doesn't make any noise, and it doesn't use any electricity or gasoline, but it ensures that you can stop your car with only a light touch of the brake pedal. Things weren't always like that: before the invention of the vacuum brake booster, cars still stopped. It's just that you had to really stomp on the brake pedal. The modern brake booster is an ingenious device that operates using something that your engine generates whenever it's running: vacuum. The brake booster takes engine vacuum via a rubber hose that runs from the intake manifold, and the brake booster uses that vacuum to amplify the pressure you put on the pedal. A light application of the brakes is translated by the brake booster into significantly more pressure on the brake master cylinder, ensuring that your car stops quickly. So what happens to the brake booster if your car stalls, resulting in a loss of engine vacuum? Early designers realized that gas engines were hardly foolproof, so they designed a little check valve into the brake booster circuit. The brake booster stores enough vacuum to provide full boost for two or three pedal applications even after the engine dies. The check valve on the brake booster is what keeps that vacuum from leaking out. And speaking of leaks, that's the reason most brake booster units have to be replaced. As your brake booster ages, the rubber seals and diaphragms that hold the vacuum tend to wear out and crack. If the brake booster can't hold vacuum (despite the check valve's best efforts), its time is up and you'll need a new or remanufactured new brake booster.

Jun 14, 2011 | 1999 Chrysler Sebring

1 Answer

Brake booster appears not to be working properly. brakes work ok for 1 or 2 apps then pedal gets hard. cannot hear any vacume leaks. the car does have a vacume switch in the booster


the booster is the problem, or a hole or leak in vacuum line to booster check the check valve also ! from manifold. heres the symtoms of a bad brake booster. primary symtom is a hard pedal on application, to test booster. pump brakes several times with engine off. to deplete stored vacuum. turn on engine with pushing slightly on brake pedal. you should feel the pedal fade away abit and then become firm. but not hard. if you feel nothing at pedal when engine starts, brake booster is not working! check the vacuum lines first!!

Jun 11, 2011 | 1985 Pontiac 6000

1 Answer

HARD BRAE PEDAL AND NO BOOST ASSIST


you either have a bad brake booster or no vacuum to the booster.Check for vacuum while running if you have vacuum replace the brake booster :)

Jun 28, 2009 | 1996 Dodge Dakota

3 Answers

Hard brake pedal hear air leaking when pedal pushed


When you press on the brake? Have your brake vacuum assist checked. It,s that bigspaceship looking thing between the brake master cylinder an firewall. good luck and be safe.

May 25, 2009 | 1999 Chevrolet Tahoe

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