Question about 2003 Ford Taurus

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I have a 2003 Taurus that I think the brake booster is not working correctly. When I press hard on the brakes they start to work and then I feel the pedel push back and the car barly stops. It has new rotor's and pads.

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Mastercylinder is bad. have you try bleeding brakes .

Posted on Nov 02, 2010

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1 Answer

The brakes are really hard to push.they dont stop the truck like they should and the passenger side rear is trying to lock up.


Do you feel the brake pedal go down when you hold you foot on the pedal while starting the truck ? Maybe the power booster is bad. The power brake booster is vacuum controlled in most cases an if you hold your foot on the brake pedal when starting you should feel the pedal go down if working correctly .

Oct 10, 2015 | 2000 Dodge Ram 1500 Truck

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

2 Answers

Power brakes stopped working


Brake booster vacuum hose , inspect that, if the hose is good then brake booster has went bad.e1320de5-8a99-48ed-84e9-c42d2e2274cb.jpg

Dec 10, 2013 | 1997 Ford Taurus

2 Answers

96 ford taurus breaks are hard but no breaks


sounds like the brake booster failed ! or the vacuum line to booster. also check for a bad check valve at the booster hose where it goes into booster.

Nov 20, 2011 | 1996 Ford Taurus

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

My 2004 prius abs and brake light came on and the the brakes became very hard and constant beeeep noise, so i would shut the car off and pump the breaks and it would work fine so i decided to bleed the...


well, a hard firm pedal, usually indicates a bad brake booster or a vacuum leak to booster or the vacuum check valve, on booster. TO TEST BRAKE BOOSTER; pump brakes several times with engine off to deplete stored vacuum. turn on engine with pushing slightly on pedal. you should feel the pedal fade away a bit and then become firm, but not hard. if you feel nothing at the pedal when engine starts the booster is at fault. good-luck !!

Feb 03, 2011 | 2003 Toyota Prius

1 Answer

I have a peugeot 307 and the brakes have become very hard to press and feel like there is something under the pedal when you press down on the pedal.what could this be


It sounds like the booster is failing. That is the big round thing attached to the Brake master cylinder. This assists the brake pedal so u dont have to press hard. Try another car and press the brake without it running then start it and press it with it running it will feel softer when running. If yours feels like the car when it is not running it is probably the booster that needs replacing on your car. Good luck

Jul 13, 2010 | Cars & Trucks

1 Answer

No power brakes '


your brake booster went out, or you have a major vacuum leak, provided the pedal is still firm when you press it. It'll usually feel like stepping on a rock, but the brakes will still work to a small degree. The booster is more likely. If the pedal goes to the floor, you have air in the system, a blown brake hose, wheel cylinder, or caliper.

Nov 19, 2009 | 1997 Ford Taurus

1 Answer

Excessive brake pedal travel and 'soft' brakes


the brakes have to be bleed you wrote that when you start the car the pedal goes to the floor that means the booster is working fine take it back and tell them you want the brakes bleed

Nov 14, 2008 | 2003 Honda Accord

1 Answer

96 Taurus brakes


Presuming you have NO leaks in the hydraulic system,it would be a bad brake master cylinder.What's happening is,the piston inside the master cylinder has rubber seals,and when the pedal goes to the floor,the master cylinder is leaking internally,past the rubber seals.If the brake booster was bad,the symptom would be an extrememly HARD,unresponsive,brake pedal,and the engine would idle terrible (vacuum leak).Good luck.

Jul 10, 2008 | 1994 Ford Taurus

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