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I have replaced entire brake system 91 Dodge w250 diesel have bled brakes serval times still have a soft pedal and seems to be bleeding off don't know what to do from here thank you

Posted by Anonymous on

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  • Dodge Master
  • 2,160 Answers

Sounds like a master cylinder issue.

Posted on Apr 14, 2015

  • Anonymous Apr 15, 2015

    I have replaced master cylinder booster brake calipers bright and wheel cylinder and brake pads on black I've replaced everything and still having problems

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  • Dodge Master
  • 3,218 Answers

Make sure the calipers are on the correct sides if you have replaced them. The bleed screws need to point to the top.

Posted on Apr 14, 2015

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Posted on Jan 02, 2017

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SOURCE: I HAVE A 95 F250

You need to check wheel cylinders, the only way that the brake peddle will go to the floor like that is if there is a lose of fluid pressure somewhere .

Posted on Dec 29, 2010

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SOURCE: I HAVE A 95 F250

The slave cylinder is the next thing I'd replace.

Posted on Dec 29, 2010

johnnybtheon
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SOURCE: brake pedal soft after changing pads and bleeding brakes

You will need to bleed the brake system. I would start with the rear brakes lines and work towards the front.You must have key off engine off when bleeding brakes, apply pressure on brake pedal 10 times and hold. The brake line is now ready to be open. Open and let the stream of fluid come out and close the line tight. Then release brake pedal once bleeder screw is close. This procedure must be repeated twice front and back. After, brakes have been bleed pump the brake pedal before putting in drive.
Note: Don't let the resevoir run low on brake fluid. This will cause air bubbles to accumulate on the brake system. Always top off before opening bleeder screw.

Posted on Nov 21, 2011

  • 42075 Answers

SOURCE: brake pedal soft

You still have air in the brake system and this becomes evident when the operation of the booster allows the pedal to do down as it is compressing the air in the lines more efficiently than what you can do with your foot. Try starting the bleeding procedure but undoing the lines at the master cylinder and priming the unit first to get the air out of both sides of the unit. Tighten the lines and with the help of a assistant start at the longest line first and work back to the shortest. Booster failure will result in no assistance or engine stopping from a massive vacuum leak when the valves are opened. The abs is just a motor driven pump that supplies pressure to the brake system when the wheel sensors come into operation otherwise the brake pedal pressure is operating through the ABS unit to the brakes. (An ABS is only there to keep the brake pressure constant as the sensor opens and closes a valve to stop the wheel skidding . If it is not working then pressure from the pedal may bleed back leaving you with no brakes.)

Posted on Nov 30, 2013

Testimonial: "Thanks Bill, I do know for fact there are SUM chrysler vehicles that require a ABS bleed procedure done in the MIDDLE of the brake bleed procedure...first bleed the base system, then use scanner and operate ABS system and perform the ABS bleed thing w/ scanner, then bleed a second time of the base system again...I KNOW when i worked for chrysler i did this to one vehicle, but dont remember which one...either way, new master, new booster, bled the hell outta system, and STILL soft pedal....."

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03 chevy 4x4 how do you bleed the abs?replaced all lines and bled with truck off.good pedal til start up then lost all.guy at auto store said abs needs bled.thanks


Have a look on this link below:
chevy abs bleeding Google Search

In particular a Youtube video:

Bleeding the ABS Brake Control Module On Chevy Using Snap On Solus Ultra
Sometimes it can be a nightmare bleeding the brakes. There seems to be problem after problem or no progress, irrespective of how many times you bleed them. Just a few weeks ago I had the same problem on a 4 litre Jeep.

Have a look on those two links. You obviously know how to bleed brakes and will pick up a tip or two online.

I was in the same position as you - hard pedal until start up after a brake overhaul. I wouldn't like to think how many times I bled the braking system everywhere and nothing worked. Eventually on a Jeep forum somebody suggested changing the brake compensator valve. I did .. and the brakes worked perfectly.

Read a few websites first. You'll het there in the end.

May 16, 2016 | Cars & Trucks

1 Answer

Brake pedal soft


You still have air in the brake system and this becomes evident when the operation of the booster allows the pedal to do down as it is compressing the air in the lines more efficiently than what you can do with your foot. Try starting the bleeding procedure but undoing the lines at the master cylinder and priming the unit first to get the air out of both sides of the unit. Tighten the lines and with the help of a assistant start at the longest line first and work back to the shortest. Booster failure will result in no assistance or engine stopping from a massive vacuum leak when the valves are opened. The abs is just a motor driven pump that supplies pressure to the brake system when the wheel sensors come into operation otherwise the brake pedal pressure is operating through the ABS unit to the brakes. (An ABS is only there to keep the brake pressure constant as the sensor opens and closes a valve to stop the wheel skidding . If it is not working then pressure from the pedal may bleed back leaving you with no brakes.)

Nov 30, 2013 | Dodge Cars & Trucks

1 Answer

Brake pedal soft after changing pads and bleeding brakes


You will need to bleed the brake system. I would start with the rear brakes lines and work towards the front.You must have key off engine off when bleeding brakes, apply pressure on brake pedal 10 times and hold. The brake line is now ready to be open. Open and let the stream of fluid come out and close the line tight. Then release brake pedal once bleeder screw is close. This procedure must be repeated twice front and back. After, brakes have been bleed pump the brake pedal before putting in drive.
Note: Don't let the resevoir run low on brake fluid. This will cause air bubbles to accumulate on the brake system. Always top off before opening bleeder screw.

Nov 21, 2011 | 1992 Chevrolet Corsica

2 Answers

H!i I need some info about a 2000 daewoo leganza SX. I have replaced the rear calipers, master cylinder, and booster, but I am still having issues about the brake pedal being soft. The front calipers are...


did you bench bleed the master cylinder before putting it on car ! if not, you have air trapped in the lines and it needs bled out. if there is no leaks in system. have a good day !

Apr 18, 2011 | 2000 Daewoo Leganza

2 Answers

I replaced front and back brakes on my 1996 1500 Chev Suburban. Bled the brakes starting at the farthest line. The pedal is soft and travels too far. Does not seem to stop very good. What is the...


it sounds like there is still air in the brake system that has not been removed.you don`t say if you replaced the brake pads and shoes(in which case you shouldn`t need to bleed)or you replaced a brake line(s) or wheel cylinder or caliper.you will have to keep bleeding the brakes all 4 wheels(trucks don`t use bi-directional braking meaning right rear brakes with left front and so on).bleed both rear brakes then bleed both front brakes,was this problem there before you replaced the brakes(soft pedal noticed) and this is why you changed the brakes or the pedal was soft and the brakes needed changing.its possible that the master cylinder has an internal leak and may need replacing.

Apr 06, 2011 | Chevrolet Suburban 1500 Cars & Trucks

1 Answer

I replaced the drivers side rear caliper and brakes feel soft and slowly go to close to floor when pressed. Bled caliper several times but pedal still doesnt feel right. There doesnt seem to be any more...


Check line on caliper you replaced it may not be tight enough and letting air into system.if this is not your problem rebleed brakes do not pump brake pedal while bleeding brakes. if you are not aware of how to properly bleed brakes email me at ken17402@msn.com and I will fill you in.

Nov 20, 2010 | Volkswagen Rabbit Cars & Trucks

1 Answer

I am working on a 2004 dodge caravan with a soft brake problem.i have replaced the rear shoes and adjusted rear brakes,also replaced front rotors and pads.i have also replaced the master cylinder.after...


try bleeding the master cylinder at the lines first as it indicates that there is still air in the pistons
loosen one line at a time and gently apply the brakes until any air bubbles come out tighten the line before releasing the brake pedal
do it for the other line and then bleed all the brakes starting at the longest line first and ending at the shortest line

Apr 23, 2017 | Dodge Challenger Cars & Trucks

2 Answers

I have very little rear brakes on my 91 w350. the shoes are fine and so are the wheel cylinders. I have recently replaced the master cylinder and had the system power bled at a shop. Is it the...


I assume you bled the rest of the system. If so check your rear adjustment. Adjust the parking brake at the same time. If no fix, then open up your rear brakes and inspect the hardware, cylinder/caliper, and adjuster. Only after all that would I suspect the proportioning valve. Ways to test that vary vehicle to vehicle. Good luck!

Apr 20, 2010 | Dodge W250 Cars & Trucks

5 Answers

Brake pedal goes to the floor only when engine is running. Pedal is perfect with engine off.


your power brake booster is blown out
the seal has a leak in it
run the truck for 3 minutes and shut it off. with the windows up listen carefully while you gently apply the brakes
listen for a hissing sound of air leaking.
the sound of these leaking is a very soft sound

Mar 27, 2010 | 1998 Chevrolet K1500

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