Question about 1991 Toyota Previa

1 Answer

Brake problems the problem started where i could only pump to apply pressure and sometimes it would return to half normal, but now all i can do is push it to the floor and gear down to stop, i have no leaks and have good pads, please help i can't afford a professional right now

Posted by on


1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 20 achievements.


    An expert that got 10 achievements.


    An expert that got 5 achievements.

  • Toyota Master
  • 1,861 Answers

Thank you for allowing me to assist you, Before we do anyhing, I need some additional information.
Please respond to the following 5 questions so that I may be able to help you better.
Is you vehicle front disc/rear drum or front disc/rear disc?
When were the brakes changed last?
If so, front or rear?
If you apply the park brake, does the vehicle move at all when you put it in gear?
Finally, I am understanding that the brake pedal goes to the floor, you have no resistance on the pedal, and the vehicle does not stop when applying the brakes. Da?

Posted on Oct 08, 2008


1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya Mechanic can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repair professionals here in the US.
click here to Talk to a Mechanic (only for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

1995 Chevy p30 chassis builds pressure and applies brake while moving or setting until you bleed front brakes

pressure build up in brake lines indicates a blocked compensating port in the master cylinder. The heat generated by brake operation is expanding the brake fluid which cannot return to the reservoir and so it is apply the brakes. If you have an ABS system on the vehicle have it checked out by an accredited brake shop for operation as well

Oct 28, 2014 | Cars & Trucks

1 Answer

I drive a kia sportage 2007. When I press brake pedal twice or three especially when driving slowly, the pedal becomes stiff and the brakes seems to lock and car literally stops. However when i pump the...

Your problem is half normal actually. Pumping the brakes will build more pressure in the system and will make the pedal harder and the brakes will brake alot more, the brakes are designes this way. But if the brakes don't release after you let go of the pedal, that's not normal. If this is the case, there may be a few things that can be faulty, but i'd start by checking/replacing brake vacuum booster unit. If the unit is ok, then probably one of the calipers on the brakes are starting to jam due to rust and dirt, especially if you see the the rubber seals on the caliper pistons are damaged or missing.

Dec 31, 2013 | 2000 Kia Sportage

1 Answer

I am having several problems with my 2004 Ford F150 STX, it is a 4.6L V8. It is a 4wheel drive Problem one: when I applie the brakes the Lights drasticly dim(all the Lights, dash, head....etc) also the...

-When brake and dim all light that and decrease air flow mean the brake light has bad ground. So it need new or good ground.
-Lot of thing can cause rough idle.
-Vacuum line leak, pinch or block.
-Bad injector
-Low fuel pressure
-Bad spark plug or and plug wire, weak spark.
-Coolant leak into the combustion chamber.

Good luck


Mar 28, 2017 | Cars & Trucks

1 Answer

Brakes seem to be dragging at times,fuel mileage goes straight to hell and then other times the car rolls right on out.cannot get problem to "happen". i know there is some sort of ******** that...

Hi Wisker, If the brake problem occurs once you have been out on the highway and applied the brakes several times, the problem is with the brake master cylinder and is associated to the seal which should allow brake fluid to return to the pot when the brakes are released. It would seem that your vehicle is building up fluid pressure which is not returning and causing the bakes to apply from that point onward. When the fault reoccurs near home, drive there and open one of the bleed nipples and the brakes should return to normal until they are applied three or four times. The cure is for you to replace the master brake cylinder. Once done bleed the brakes, beginning with the wheel furthest from the reservoir and work closer one wheel at a time untill you complete all four. Make sure the brake fluid is kept topped up all the time and the wheels are chocked so the car cannot move. The Caddy is heavy and you don't want it resting on your chest! regards John

Jun 24, 2012 | 1988 Cadillac Sedan DeVille

1 Answer

1992 F250 460 cid automatic 2w drive 85000 mi. Just replaced my master cylinder, all 4 brakes, and both front rotors. Afterward I blead the brakes and got bubbles out of fluid. Problem is : when not...

There is never a test or reason to pump your brakes

Accomplishes absolutely nothing.

There is no pressure in a braking system at all,
until you SLOWLY apply the brake pedal.

Then less than 1" off movement in the master cyl,
will develop 600 to 1800 lbs at the wheels

Release the brake pedal, the system goes to zero,

To answer your question

You not suppost to press the pedal hard
The saying goes--you apply the brakes,
not force the pedal arm and pin into the
vacuum booster, as though you want to damage it

When your driving what happens ?
You have higher manifold vacuum and
thus your pedal is normal,why the VACUUM
brake booster

Mar 31, 2011 | 1992 Ford F250

1 Answer

Stopped at stop sign then sometimes i start moving forward what could be causing this

have your breaks and master cylinder pressure checked. maybe your loosing pressure and the brakes are slipping, if it moves and you let off brake and apply again does it hold the car ? On automatics i Have seen a torque converter malfunction that applies torque to trans which would apply pump pressure to trans wanting to make the car very hard to hold,possibly stalling the car out, Possible but uncommon.

Feb 01, 2011 | 2005 Pontiac Grand Prix

1 Answer

Press on brake and stering locks up

Steering locking up is not normal. You have a hydro-boost assist power steering system on your vehicle. It uses the power steering pump to apply hydraullic pressure to assist in braking. The hydro-boost system may have a problem, pressure or restriction problem. Have dealer check booster and current updates to check valves, there may be a service bulletin for your concern.
Hope this helps.

Mar 02, 2010 | 2007 Chevrolet Silverado 2500HD

1 Answer

Brakes are sticking when the pedal is applied, also what would be the result of a normal pedal but you have to pull up on the pedal with your foot to release the brakes

What you are describing is brake drag. Brake drag occurs when there is still fluid under pressure left in the brake lines. When you apply brake pressure, brake fluid is pushed into the brake lines from the master cylinder, with a piston. During normal operation, when released, the brake pedal should return to a resting position as the brake fluid returns to the master cylinder. Brake drag may be caused by any of the following:

A) The master cylinder piston is not returning far enough for the brake fluid return into the compensating port.

B) Topping off the master with automatic transmission fluid, engine oil, or power steering fluid, can well the rubber seals in the brake lines. The mineral oil in these fluids can affect the composition of the rubber in the brake line.

C) The master cylinder push rod could be out of adjustment.

You problem could be caused by, but is not limited to, any one of these symptoms; each and every car is different, and some have problems that can stump the greatest technicians for weeks, so do not take this as your solution, but rather a place to start.

Sep 27, 2009 | 1995 Ford Mustang

2 Answers

Back brakes not working on my 1997 dodge ram 1500

make sure master cylinder is full, and that their is not leaks

Dec 15, 2008 | 1997 Dodge Ram 1500 Club Cab

Not finding what you are looking for?
1991 Toyota Previa Logo

239 people viewed this question

Ask a Question

Usually answered in minutes!

Top Toyota Experts


Level 3 Expert

77499 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22306 Answers

Jeffrey Turcotte
Jeffrey Turcotte

Level 3 Expert

8826 Answers

Are you a Toyota Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides