Question about 2003 Saturn VUE

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Loss of power/hard brake pedal

I experience a sudden loss of power and hard braking

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If your engine is nearly stalling, you will also lose braking assist, because your vacuum drops off to nothing. The first thing to do is to get a diagnostic scan. There are several sensors that can cause this to happen. Your least expensive route is often to get it scanned before looking any deeper.

Posted on May 15, 2014

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Those two things are not really connected except by vacuum on your brake booster there is a hose that runs to the intake I would start by checking that for a leak it sounds to me like a vacuum leak especially with the hard brake pedal

Posted on May 08, 2014

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Posted on Jan 02, 2017

j_del
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SOURCE: brakes

Sounds like air in the fluid or low fluid level. Check the brake fluid level under the hood and make sure it's adequate. If not, top it off. If it is, have the brakes bled and the fluid topped off again, and you should be OK, as long as nothing was damaged during the recent brake job.

Posted on Aug 08, 2008

  • 141 Answers

SOURCE: I put new brakes in

try adjusting the rear brake shoes but.....spin the rear wheels first is u get the feeling of the shoes grabbing then releasing ( the tire gets loose then tight as u rotate it) u will need to have the drums cut on a brake lathe or replaced...when u have this done , then adjust the rear shoes until u get a slight drag on the rear wheels..go pump the brake pedal to seat the shoes if the wheel spins free adjust the shoes more an repeat until they have a slight drag after pumping the brake pedal

Posted on Jul 16, 2011

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1 Answer

Why is the brake light on all the time?


If the brake light is on all the time the brake switch should be checked. If your brake lights stay on and you experience the loss of power you should have the braking system checked. This sounds a little odd. I would bave the check perdormed sooner rather than later

Good Luck

Jun 11, 2015 | Cars & Trucks

1 Answer

Loss of power and loss of vacuum to brakes


Restriction in the exhaust can cause this. Test with a vacuum gauge normal 60 mph readings around 14-18 hg. in depending on throttle position once power loss starts if reading goes to zero restriction is present. then use of a infra-red thermal heat gun you can locate the restriction. hot to cold at plugged stop.

Apr 17, 2014 | 2003 Saturn VUE

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Brake pedal hard to push in on 1981 Ford F 100 what cause that


A hard brake pedal is caused by a failed and leaking vacuum diaphragm in the power brake vacuum operated booster. Another reason is loss of vacuum to the brake booster, buy you should hear a loud sucking noise, also the 3/8" vacuum hose can collapse from age check that as well.

Feb 24, 2012 | Ford F-100 Cars & Trucks

1 Answer

Loss of brake during sudden acceleration.


Click the link below to troubleshoot this problem: ---
Car loses power while acceleration? http://schematicsdiagram.blogspot.com/2011/12/car-loses-power-while-acceleration.html

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Loss of acceleration?

http://technoanswers.blogspot.in/2012/02/loss-of-acceleration.html

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Acceleration lag problem?

http://repairhelpcenter.blogspot.com/2012/01/acceleration-lag-problem.html

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How exactly the Vehicles Accelerator Cable works?

http://repairhelpcenter.blogspot.com/2011/11/how-exactly-vehicles-accelerator-cable.html

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How exactly Vehicles Accelerator Pump Diaphragm Works?

http://repairhelpcenter.blogspot.com/2011/11/how-exactly-vehicles-accelerator-pump.html

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accelerator pedal sensor?

http://technoanswers.blogspot.in/2012/02/2009-chevy-impala-accelerator-pedal.html

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stalls and bucks on Acceleration?

http://technoanswers.blogspot.in/2012/02/nissan-pathfinder-stalls-and-bucks-on.html

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http://technoanswers.blogspot.in/2012/02/engine-accelerates-when-brake-is.html

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This will help.

Thanks.

Feb 14, 2012 | 2003 Mercedes-Benz E-Class

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

1 Answer

My brake pedal suddenly got hard and I have very


brake servo diaphragm has gone renew the brake servo ,but first check the hose from the manifold to the servo ,,or if a diesel check for a vacumn from the vac pump

Oct 03, 2009 | 2007 Ford E-350 Super Duty Length XLT

1 Answer

Loss of brake pedal pressure, hissing sound when pedal is pushed, no visible fluid leak


if the pedal is hard to push like a manual brakes on an old truck I would say the power brake booster is going out

Aug 05, 2009 | 2004 Ford Super Duty F 550

3 Answers

Brakes


bad power booster

Jul 13, 2009 | 2002 Nissan Sentra

1 Answer

Loss of brake pressure


you might check your brake fluid. if it looses preasure than regains it after a second it may be low on fluid allowing air to get into the lines. you might need to blled the breaks to get all the air out of the line. if you need instructions on how to do that let me know.

Jul 07, 2008 | 2004 Chevrolet TrailBlazer

2 Answers

Hard pedal low stopping power


First you need to check the brakes lines and the brake pads must be replaced on your car they may be worn out........ Get it checked from the local service center........

May 30, 2008 | 1991 Buick Regal

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