Question about 1997 Mercury Mystique

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My brake fluid was empty and brake pedal goes to floor.I filled it but still seems the same

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  • Master
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Hello, my name is Ben. If the fluid reservoir was empty there is most likely air in the system now. At a minimum you will need to bleed the brakes. Also, you need to look carefully behind each wheel and check for leaks.

Posted on May 15, 2010

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  • Master
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You need to bleed the brakes if it was low enough for air to get into the lines. Some cars also require you to bleed the anti-lock system.

If the brakes have been bled, you might need a new master cylinder (the metal thing that connects to where you put brake fluid in).

Posted on May 15, 2010

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2 Answers

Having trouble bleeding brakes for 2009 jeep wrangle 4wh drive when car is off the brakes seem fine , but when the car is on the brake pedal goes almost to the floor


Because when you start it the brake booster will start working, start bleed on wheel farthest from master cylinder and work closer, one at a time pump up and bleed each line at least once after you don't see air anymore...

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My break pedal goes to the floor


There are several causes for the brake pedal going to the floor:
- Broken seals in brake`s principal pump.
- Broken seals on rear brake's cylinder. (big lieak on wheel)
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- Leak on tubings.
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My clutch pedal goes to the floor like spring or cable is broken how can i check this


Most clutches are hydraulic. you should have a clutch master cylinder. check the cylinder if full of brake / clutch fluid. if empty fill it up but if empty will need bleeding.

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94 buick century brake pedal goes to floor and I have no brakes


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Sep 07, 2011 | Buick Century Cars & Trucks

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I have installed new rear brake shoes and new wheel cylinders on both sides. I have bled the brakes. Good pedal when engine is off...no pedal at all when engine is started. Bled brakes 4 times.


When engine is running you have a power booster in operation. Without power booster brake pedal will be heavy. With engine running, do NOT press pedal really hard. Just normal firmness. If pedal goes to floor or just too low, it needs bleeding.

Are you sure you did not run the resovior dry?
I would think would not hurt to check the correct procedure for bleeding rear brakes. Here is a YouTube video which should help. http://www.youtube.com/watch?v=8T7Qrz3zJno

The other possible issue is the master cylinder piston is not sealing well. Might be a good idea to flush it with fresh fluid, but I imagine you have already if you bled it 4 times.

The way I was taught is this. Two persons method. To prevent mess, put a flexible tube over the nipple and drain it to a jar.
Fill resovior with fresh brake fluid. get ready at the bleed nipple with a small closed end wrench, and have helper sit in driver seat. Have helper pump brake pedal (all the way to the floor if it goes there without forcing it) 5 - 8 times, then HOLD PEDAL DOWN. Slowly open the bleed nipple and close it again BEFORE the pedal is released. Helper should keep pressure on as pedal moves down when fluid is released. Repeat until there is no sputtering or bubbles indicating air comming from nipple. Check and fill the tank every couple times to prevent emptying. If it run dry, you have a big problem. You must bleed the whole system at every wheel till ALL air is out.
Hope I have helped.

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Battery light comes on dash, brake light comes on dash brake pedal goes to the floor


The brake system has sprung a fluid leak, don't try to drive it until it's repaired. You may be able to locate the leak by looking under the car for fluid on the ground. This could be anything from a rusted-out steel line to a piston on a wheel.

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1 Answer

What are the proper steps to bleeding your brakes on a 1990 vw golf deisel


For left hand drive vehicles: (If the car does not have ABS system you do not need any diagnostic equipment!)

IMPORTANT NOTE: You need using diagnostic equipment connected to the data link connector of the car in order to bleed the ABS block. Follow instructions by scantool equipment for bleeding the ABS block.


1. This bleeding procedure requires two people. Remove the brake system reservoir cap, and fill up with new brake fluid until "MAX" level is reached.
2. Lift the car, or use a channel for access under vehicle.
3. Put the gearbox in "N" - Neutral position, or in "P" - Parking position for automatic transmission.
4. Start the engine and push the brake pedal firmly for 4 - 5 times to the floor, and maintain the brake pedal pushed to the floor.
5. Begin with the rear right wheel. Another person remove the dust cap and loose the brake caliper bleeding screw until the brake pedal goes to the floor. At this moment maintain the brake pedal pushed to the floor, engine idling, and tight the brake caliper bleeding screw. Use a plastic hose: one end connected to the brake caliper bleeding screw, and another end inside a recovery bottle for used brake fluid.
6. Repeat steps no.#4 and no.#5 until no air flows through the brake caliper bleeding screw. Tight the brake caliper bleeding screw, and put the dust cap in their place.

IMPORTANT NOTE: All the time check the brake fluid level in the brake system reservoir, and fill up if necessary!

7. Push the brake pedal firmly for 4 - 5 times to the floor, and maintain the brake pedal pushed to the floor, engine idling.
8. Continue with the rear left wheel. Another person remove the dust cap and loose the brake caliper bleeding screw until the brake pedal goes to the floor. At this moment maintain the brake pedal pushed to the floor, engine idling, and tight the brake caliper bleeding screw. Use a plastic hose: one end connected to the brake caliper bleeding screw, and another end inside a recovery bottle for used brake fluid.
9. Repeat steps no.#7 and no.#8 until no air flows through the brake caliper bleeding screw. Tight the brake caliper bleeding screw, and put the dust cap in their place.

IMPORTANT NOTE: All the time check the brake fluid level in the brake system reservoir, and fill up if necessary!

10. Push the brake pedal firmly for 4 - 5 times to the floor, and maintain the brake pedal pushed to the floor, engine idling.
11. Continue with the front right wheel. Another person remove the dust cap and loose the brake caliper bleeding screw until the brake pedal goes to the floor. At this moment maintain the brake pedal pushed to the floor, engine idling, and tight the brake caliper bleeding screw. Use a plastic hose: one end connected to the brake caliper bleeding screw, and another end inside a recovery bottle for used brake fluid.
12. Repeat steps no.#10 and no.#11 until no air flows through the brake caliper bleeding screw. Tight the brake caliper bleeding screw, and put the dust cap in their place.

IMPORTANT NOTE: All the time check the brake fluid level in the brake system reservoir, and fill up if necessary!

13. Push the brake pedal firmly for 4 - 5 times to the floor, and maintain the brake pedal pushed to the floor, engine idling.
14. Continue with the front left wheel. Another person remove the dust cap and loose the brake caliper bleeding screw until the brake pedal goes to the floor. At this moment maintain the brake pedal pushed to the floor, engine idling, and tight the brake caliper bleeding screw. Use a plastic hose: one end connected to the brake caliper bleeding screw, and another end inside a recovery bottle for used brake fluid.
15. Repeat steps no.#13 and no.#14 until no air flows through the brake caliper bleeding screw. Tight the brake caliper bleeding screw, and put the dust cap in their place.
16. Now the brakes are bleeded. Check the brake fluid level in the reservoir. Fill up with new brake fluid until "MAX" level is reached. Put back the brake reservoir cap.
17. Test the car brake system. The brake pedal movement no more than 1/3 of total stroke until the floor, when brake pedal is applied. Maximum admissible is 1/2 of total stroke.

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1 Answer

Hissing noise pedal goes to the floor


Sounds like a broken brake line. The broken line has emptied your master cylinder leaving you no fluid and that's why the pedal goes to the floor. Very dangerour to drive in this condition, be careful.

Jul 29, 2009 | 1992 Subaru Legacy

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