Question about 1999 Chevrolet Malibu

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99 malibu brakes

Changed calipers and brake hoses. brake pressure when car is off and no pressure when car is running. bled lines

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You need to have brake booster looked at, it uses vacuum from the engine to multiply the force that your foot applies to the master cylinder. if that checks out ok then you are lookng at master cylinder

Posted on Apr 20, 2009

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Posted on Jan 02, 2017

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94' Honda Accord 5 door, Driver side caliper piston remains stuck in closed position constantly applying constant brake pressure to driver side front wheel brake piston.


if the caliper is ok it sounds like the flexiable hose is restrcted by the metal crimps on the hose corroded and crushing the reinforced rubber hose restricting the fluid returning back in to the system. change the hose

Nov 04, 2017 | 1994 Honda Accord

1 Answer

Got an '03 Chevy Cav Sdn, new front pad,changed hydraulic line. Now brakes stay engaged! Can bleed off pressure thru bleeder, will not return fluid to master cylinder.Bled green fluid!Help!


It certainly sounds like the brake hoses are kinked or collapsed internally. Did you replace the flexible hoses or the steel hydraulic line? When you removed the calipers to change the pads did you let the calipers hang by the hoses or did you support them? When reinstalling the calipers did you make sure the hose wasn't twisted or kinked? The fluid certainly shouldn't be green, are you sure you're bleeding the correct thing?

Nov 21, 2016 | Cars & Trucks

1 Answer

What is causing my front brake calipers to stick? After they are bled, they are fine for a little while, but then they lock up again and have to be bled off again.


The fleixible hose that runs from brake line on the body of the car to the caliper might be failing, clogged, etc. These get soft over time and restrict flow of brake fluid. Bleeding the brakes may draw some of the contaminant out of the line but more breaks up after that.

Sep 18, 2015 | 2002 Hyundai Elantra GLS

2 Answers

2006 envoy Denali pulls hard right when brakes applied. changed calipers and pads no change.


Have you had the OBD codes read ? Does vehicle have ABS ? Obvious but are the tyre's ok , tread ,not worn on either edges or middle, pressure etc , Is the tracking set up correctly ?

Nov 07, 2014 | 2006 GMC Envoy Denali

1 Answer

2005 Chevy Equinox left front brake caliper locks up


Your vehicle should have rear drum brakes...They have to be adjusted manually for correct adjustment...People say they self adjust but it is not good enough....by adjusting the rear it will decrease the pressure on the front and deliver equal braking...This will help eliminate caliper pressure overload....I'm not saying that is your caliper problem but it is insult to injury and will save the life of front brakes.....Now your caliper problem..FYI..A rule of thumb is anytime you change a caliper you should always replace both calipers to have identical braking pressure".The same with brake hoses and rear wheel cylinders.....The caliper that froze in the first place got hot and boiled the brake fluid and quite possibly partially collapsed the caliper brake line/hose inside as Clint and Frank stated....I am going to guess that the first caliper froze under normal conditions however got hot enough to internally damage the caliper line/hose...Then you may think of the pressure regulator being bad in which case could be a problem......So this is what you do".Since we know the left front caliper line/hose has been exposed to heat it needs to be replaced anyway...also the fluid was boiled and it needs to be changed / bled...The new caliper that froze should be ok unless it was bad off the shelf which is rare but possible."..Change the line/hose,bleed the brake system and let the mechanic test drive before you pay and leave..The mechanic will know before driving if the new caliper that froze is bad or not by rotating the wheel...This is the cheapest way...And you will know if the pressure regulator is bad or not just by bleeding system........I hope this helps....."Brooks/Metalpoet....."....

Jun 13, 2014 | 2005 Chevrolet Equinox

1 Answer

2001 Silverado 2500 HD Why Rear brakes don't work after I installed new hydro-boost power booster, master cylinder, calipers, and pads. I bled master cylinder before installing, and brakes beginn


Hello Patricia,

Have you checked the master brake cylinder reservoir for brake fluid loss?

I don't suspect the master cylinder as you have replaced it... but am more suspect of a leaking brake line or fitting which should have
been discovered when you had the system bled.

The only time I ever had a rear brake problem with a 2500 series Chevrolet was due to seized rear brake caliper guide pins...as your calipers are also new that is not your problem.

If your brake pedal feels spongy and travels to the floor board you have air in the system, a brake fluid leak or a failure in the power steering system, such as a broken hose, broken power steering pump drive belt, or failed pump, would result in a loss of pressure to both the hydro-boost and steering.

Find more information here:

. Hydro Boost Power Assist Systems Operation Diagnosis and Repair

Jul 23, 2017 | 2001 Chevrolet Silverado 2500HD

1 Answer

1937 ford coupe relpaced booster brake pressure when off/no pressure when started


Try checking with either propane or water mist on all hoses and surfaces where generated vacuum could escape.

Activator rod from Brake pedal to Master cylinder can be adjustable on some models.

Jul 20, 2017 | Ford C Cars & Trucks

1 Answer

F150 98ford brakes hanging up just changed rotors pads master cyl calibers still the same


brake hoses can fracture on the inside and work as one way valves and hold pressure.thanks to all the dedicated pros who hang calipers by the hoses.
the brake lines and fluid needs to be completely flushed and bled properly,or what happens is water in the system expanding and causing pressure build up.
make sure your brake pedal is retracting all the way up.
i have seen it where ever so slight pressure caused the brakes to drag.

Apr 26, 2009 | 1998 Ford F150 Regular Cab

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