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Brake pedal hard to depress - DeVille Cadillac Cars & Trucks

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Brake booster maybe bad - to check pump brake pedal till hard then hold down and start if goes to floor then good

vaccuum line maybe loose

Posted on Oct 24, 2008

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Posted on Jan 02, 2017

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Car won't start and displayed depress brake pedal. Brake pedal is hard to press


Are you brake lights coming one when you press the brake pedal? If not, the issue is probably a dead battery. If the lights are coming on, it is probably a defective brake switch (which tells the car when you are pressing the brake).

Oct 28, 2015 | Cars & Trucks

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Brake booster


With the engine off, depress the brake pedal about 6 times, all the way up and down. While holding the hard pedal down, start the engine, and if the booster is working properly, the pedal will fade down a little bit.

Aug 10, 2014 | 1999 Jeep Cherokee 4WD

1 Answer

I have a brake problem on my 2005 GMC sierra


I need to know if the brake pedal gets tight or does the brakes get tight and slow vehicle down as if brakes are being applied.....If it is just the pedal getting tight and hard you have a vacuum Brake Power booster problem....If the brakes are locking slightly this could be a few different things......NEED MORE INFO..and Mileage....

Apr 01, 2014 | 2005 GMC Sierra 1500 Hybrid

1 Answer

Vw golf 2000 the brake pedal is to soft when you apply it and seems like is not going to stop but it does, what is the problem?


Not sure if you have done all this.



BRAKE BOOSTER INSPECTION

Functional test:
1. With the engine stopped, Depress the brake pedal several times, then depress the pedal hard and hold that pressure for 15 seconds. If the pedal sinks, the master cylinder, brake line or a brake caliper is faulty
2. Start the engine with the pedal depressed. If the pedal sinks slightly, the vacuum booster is working. If the pedal height does not vary, the booster or the check valve is faulty

Leak Test:
1. Depress the brake pedal with the engine running then stop the engine. If the pedal height does not vary while depressed for 30 seconds, the vacuum booster is OK. If the pedal rises, the booster is faulty
2. With the engine stopped, depress the brake pedal several times using normal pressure. When the pedal is first depressed, it should be low. On consecutive applications, the pedal height should gradually rise. If the pedal position does not vary, check the booster check valve.

Check valve test:
1. Disconnect the brake booster vacuum hose at the booster.
2. Start the engine and let it idle. There should be a vacuum available. If no vacuum is available, the check valve is not working correctly. Replace the check valve and retest.

END TEST

Nov 06, 2012 | Volkswagen Cars & Trucks

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I have a 2004 Land cruiser and changed the right rear brake cyl and brake shoes . What is the proper procedure to bleed the rear brake system. Thank you for your help.


  1. Check the fluid level in the reservoir after bleeding each wheel. Add DOT3 fluid, if necessary.
  2. If the master cylinder was disassembled or if the reservoir becomes empty, bleed the air from the master cylinder as follows:
    1. Disconnect the brake lines from the master cylinder.
    2. Slowly depress the brake pedal and hold it.
    3. Block off the outlet plug with your finger, and release the brake pedal.
    4. Repeat 3 or 4 times.

  3. Bleed the brake starting with the one furthest from the reservoir and then the next furthest, etc.
  4. Depress the brake pedal several times, then loosen the bleeder plug with the pedal held down.
  5. At the point when fluid stops coming out, tighten the bleeder plug to 11 Nm (8 ft. lbs.), then release the brake pedal.
  6. Repeat until all the air in the fluid has been bled out.
  7. Repeat the procedure to bleed the air out of brake line for each wheel.
  8. Check the fluid level and add DOT3 fluid if necessary.

Aug 07, 2011 | 2004 Toyota Land Cruiser

1 Answer

Hard to shift into park.depressing brake pedal does not release


the brake switch may be failing, causing the gears to stay in a locked position making it hard to shift into park

Dec 27, 2008 | 1999 Ford Taurus

1 Answer

Bad Brakes


I would be looking at the ABS valve. one way to test the booster is to start the vehicle while you ae depressing the brake pedal, you should feel the brake pedal drop a little bit, this is a sign that the boostr is working properely. you may want to check to see if there is any air in your system as well.
hope that this helps.

Oct 16, 2008 | 1996 Chevrolet K1500

1 Answer

Brake pedal backed up with excessive pressure and very hard to depress to get brakes to work


Make sure the vacuum line running to the brake booster(round drum behind the master cylinder) is still in place. If so then you may have a failed brake booster which will make a hard pedal and hard to stop.

Sep 07, 2008 | 1996 Chevrolet K1500

1 Answer

Brake air leak noise


check under dash for a leaky vaccum switch. if booster was faulty brake pedal would be very hard to depress.

Jul 18, 2008 | 1991 Jeep Comanche

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