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No power assist to the brakes - 2002 Ford Escape

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Vaccum hose disconected or faulty brake booster

Posted on Sep 18, 2010

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1 Answer

1994 Chevrolet astro van awd


I think that van has "hydroboost" brake assist instead of vacuum powered assist. Hydroboost uses pressure from the power steering pump to assist the brakes. However, I am unsure where the problem is. It could be a leak in the hydroboost itself, a leak in the line, a bad pump, or as easy as low power steering fluid.

Jan 08, 2017 | Chevrolet Cars & Trucks

1 Answer

Hard brake pedal with engine running, same as engine off


If you have vacuum assist power brakes look for your vacuum line to be disconnected from either the booster or the engine, or a hole in the line. If you have electric assist brakes, look for a blown fuse or make sure you are getting power to the brake servo.

Jun 15, 2015 | 2004 Cadillac CTS Sedan

1 Answer

Hard braking


veh, comparisons. that be bad idea.
power assisted brakes very greatly in that word POWER.
first off, the brakes need to great.
then the assist active
try driving with the booster (safely) defeated. (pull hose and plug it)
is that 6 times harder to brake, that is normal.
if the same, then the booster is failing, they can.

Mar 28, 2014 | 1998 Jeep Grand Cherokee

1 Answer

Brake failure


If you are talking about the brake pedal being stiff and too hard to push, then working easily again - it sounds like you temporarily lost the power assist. This will happen again and it is not safe to drive until properly repaired.

Many decades ago cars had no power assist and took much more foot pressure and much longer distance to stop. So your brakes were working, just not the assist.

The power assist is provided by a vacuum line from the engine. The likely causes of the failure are: stalling or stopped engine, leak in hose from engine to brake assist booster or leak in the diaphragm inside the brake booster. There are also other much less likely causes from brake fluid lines and the master cylinder. Regardless, don't drive knowing the brakes are likely to fail.

Feb 23, 2014 | GMC K1500 Cars & Trucks

1 Answer

What do brakes and power steering have in common on a 2000F550


If you have the hydroboost system..The powersteering pump gives you power assist while you steer..And it also gives you power assist to your brakes..When you have trouble with the power steering pump,,you lose your assist in your steering and your brakes..Youll get a hard brake pedal feel and it will be hard to steer as well

Sep 24, 2011 | 2000 Ford F350 Super Duty Super Cab

2 Answers

What causes the brakes and power steering to go out at the same time?


Are you a diesel? If you are do the recall ,for the hydro boost (brakes) you sound like it.There is a recall on the hydro boost and yes this is a power steering assist, and a brake power assist
Recall I.D # 04045000

May 02, 2011 | 2004 GMC Sierra 2500

1 Answer

On my 2004 Jetta 1,8T the brakes are starting to get hard. Taking s little more pressure on the brake pedal to stop the car. What could be causing this??? Thanks


The most likely cause is loss of power assistance to the braking system which means you will need to apply increased brake pressure to compensate for the loss of assistance.

The problem will be with the brake servo assist. It is possible there is a leak in the brake servo assist system, which reduces the vacuum, so you are not getting sufficient mechanical assistance when applying the brakes.

It is unwise to be driving the car with this condition. If you lose all power assistance to the brakes, which could easily occur with this fault, the pedal will become very hard, you will need to apply very high pedal pressure and the vehicle will be very difficult to stop. You need to take the car to a VW dealer for service or to a competent brake specialist in your area to inspect the system and rectify the fault.

VW did a recall on some earlier year models for a leaking brake servo and I understand the problem was a faulty vacuum hose which would fail and leak. I am not aware of any recall for this item on later models like your 2004 vehicle.

All the best.

Dec 03, 2010 | 1997 Volkswagen Jetta

2 Answers

Have an '88 corolla sedan (manual), after brakes used in quick succession, brake pedal looses all assistance and pedal goes hard, resulting in poor brakes...any ideas


this is probably normal. your power brake booster operates by storing engine vacuum to be used later to assist the brakes. when you pump the pedal repeatedly in a short period, the stored vacuum gets used up and it does not have sufficient time to build up the vacuum needed to effectively assist with braking. it generally takes a few seconds to build up sufficient vacuum from when you let off the brake pedal to when you press it again. however, brake boosters can fail over time (it's not uncommon, but it does happen), so if this is a new development for this vehicle, you may need to replace the brake booster or check the vacuum line and the check-valve between it and the engine

Sep 29, 2009 | 1987 Toyota Corolla 2 Door

1 Answer

1993 Plymouth voyager--brake light on no power assist


Either ur Abs brains  shot which r located below the battery or u have a vacum hose unattached which there is about 4 runing all around the mastercylinder......but my guess would be the ABS ECU

May 30, 2009 | 1993 Plymouth Voyager

1 Answer

Car cutting out when applying brakes


It may be that your power assist booster behind the brake master is leaking and when you apply the brakes it robs all your vacuum. Try plugging the hose that goes to the power assist boost and apply the brakes. If the engine stayhs steady thats your problem!

Mar 16, 2009 | 1997 BMW 328

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