Question about 1990 Cadillac Deville

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Brake pedal goes to floor, but brake fluid full

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Only 2 items can cause that. First one being air in the brake lines. If work has been done on the brake system then they weren't bleed properly. The other is a bad master cylinder.

Posted on Mar 17, 2011

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THE BRAKES- PEDAL GOING TO THE FLOOR - FULL OF FLUID IN MASTER CYLINDER


That sounds like your cups that catch & push the brake fluid are worn out in the master cylinder, get a new master cylinder .

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1994 Jeep Grand Cherokee brake pedal goes all the way to the floor. Recently replaced calipers and master cylinder and bled the whole system. Brake pedal goes all the way to the floor when first pushed...


Not bleed properly
or you have a rusted out line (leak)

There is NO Procedure-- that when driving a
vehicle or bleeding brakes,do you ever pump them

Dec 03, 2014 | 1994 Jeep Grand Cherokee

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Brakes not working right


Air is getting into the system hence the spongy feel to the pedal. The problem may lie with the brake assist system - have it checked professionally - brakes matter!

Jan 30, 2014 | 2002 Mercury Sable

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99 f350 diesel truck has brake pedal that goes to floor after a few seconds of applying brakes


check the vacume line to the braking master cylinder if this lose vacuum the peddle will go to the floor and have poor braking.

Aug 13, 2017 | Cars & Trucks

1 Answer

Brake pedal goes to floor but brake fluid full


It sounds like you have quite a bit of air in your brake lines. You may need to have them bled out to relieve the spongeyness. If the brake fluid resivoir is staying full then this would be the most likely cause. Hope this helps.

Mar 17, 2011 | Cadillac DeVille Cars & Trucks

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.

Dec 06, 2010 | Volkswagen Golf Cars & Trucks

2 Answers

I have brake power when the car is off but brake pedal goes to the floor had to stop when the car is on


you could have air in your lines you may have to bleed the lines or set your break peddel.

Nov 15, 2010 | 2003 Ford Taurus

1 Answer

Brake pedal goes all the to the floor. can not


Check the reservoir to be sure the fluid is full. If not, top it off and try it again. If there's still trouble building pressure, pump the brakes a bunch of times, and then check around each wheel for fluid on the ground. If you see none, it's possible that you have a break in the line somewhere through the chassis and that the fluid is leaking out inside. If you see no evidence of leakage, and the reservoir is still full, you need a new brake master cylinder - what will have happened is that the diaphragm around the plunger inside the master cylinder (which moves through the cylinder when you push the pedal, and forces fluid out to the wheels) has a hole or tear in it, so instead of pushing the fluid out to the brakes, the plunger simply moves through the fluid. It never builds pressure, and your brakes don't work.

Dec 22, 2009 | 1992 Cadillac DeVille

1 Answer

Brake pedal will go all the way to the floor


make sure brake fluid is full. then pump brakes for one minuite check the fluid to see if it went down or stayed full. if it went down then check the system for a leak . if it stays full then you will need a new mastercylender . i dont think you have a vacum problem cause this causes a verry stiff brake pedal not one that goes to the floor

Dec 26, 2008 | 1993 Ford Crown Victoria

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