Question about 1988 Jeep Cherokee

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Soft brakes my 1990 jeep cherokee has a very sof pedal feel the rear rums have been adjusted and the fluid does not leak and it is topped of please help

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I can only think of 4 possible reasons why your brakes feel soft...

1. Brake fluid contamination (any dirt in the lines can cause a blockage in the lines).

2. Air in Brake lines (any small amount of air trapped in the lines can effect your braking also).

3. Worn or leaking brake master cylinder. (causes loss in pressure for braking).

4. Damaged booster vacuum line/check valve, or diaphram (causes loss in pressure for braking also).

Hope this helps

Posted on Jan 30, 2009

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Then you will need a master cylinder or a brake booster

Posted on Jan 30, 2009

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1 Answer

I have a 1999 Jeep Cherokee 4.0L 4WD. Recently I replaced the rear brakes (drums, shoes, hardware kit, automatic self adjusting kit) on both sides. The brakes worked fine for a little while (probably


what are the symptoms.? there are over 20. or so.
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  2. stopping distance increased.
  3. pulling (steering changes as you brake)
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  11. spongy brakes.
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  15. rusty brake lines
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Oct 24, 2014 | 1999 Jeep Cherokee

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My brake peddel is spongee-soft, and goes to the floor if i prees hard?


when you push pedal hard & pedal goes to floor does brake light come on?
assuming brake fluid leval is ok & didnt run empty have you checked for a leak?
pulling all wheels & inspecting brakes,cylinders, calipers,& lines for leaks.
does the pedal pump up & feel ok with engine running?if so there is air in the system
if it does'nt change the way the pedal feels & no leaks are found & brake linings are ok & adjusted
properly than your master cylinder is leaking internally & needs to be replaced

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99 ford explorer brake pedal goes to floor. Booster or master cyl. ?


Not likely that the booster is an issue. The booster would not be able to overcome the brake fluid compression.
First open and inspect all brakes for leaks, adjustment, etc. Check all brake lines.
So if no leaks, did the fluid go low in the MC? If so, pad consumption would eat more than a MC reservoir of fluid, and not require MC replacement, but rebleeding and top up of fluid. If the pads are worn, and you replace them, often this will expel air back through the MC.

If you determine the MC is faulty, bench bleed the new one before install, or you will have lots of problems getting air out....

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How do i adjust the brake pedal on 1993 jeep cherokee


You have disc brakes on the front of your Jeep. Disc brakes do not need adjustment. On the rear, you have drum brakes.Before doing anything else, make sure the friction pads on front and rear are not worn out and that the fluid level in the master is full. Drum brakes have a self adjuster, but if the star wheel assembly at the bottom of the shoes gets rusted it may not move and therefore will not adjust by itself. You need to remove both back wheels and brake drums and check to make sure it moves freely and that there is nothing leaking.. Then, check the steel cable that runs from the stud at the top, down to the little adjuster arm that works the star. That cable should be intact. If everything back there is good, you can put the drum back on and using a brake adjuster tool or screwdriver turn the wheel through the access hole in the backing plate till you can just hear the brake shoes beginning to touch the drum as you turn it. Don't go further than that or the brakes will bind and overheat. The self adjuster should work by itself and make any further adjustment each time you back up and apply the brake.
All four of your brakes are hydraulically operated. You need to check the fluid level in the master cylinder. If low, check all the lines for leaks. Also check for seepage at the rear of the master where it attaches to the brake booster. You should be able to hold your foot on the pedal and not have it sink down. If it does and there are no leaks, then it's likely that the master itself is worn internally and the fluid is bypassing the seals instead of holding pressure (replace). Any time you work on the hydraulic system (change any component) the brakes need to bled to remove any air.
So to answer your question, you actually do not adjust the pedal but need to make sure that everything that the pedal operates is working.

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Could be the switch on the hand brake mechanism out of adjustment. mcdevito75

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Brake pedal pumps up but does not hold a good pedal


If you are able to pump and create a good pedal, the first thing to check is the master cylinder level, 2nd, the adjustment on the rear drum brakes(lift up and should have a slight drag when properly adjusted). If all check out good, the fault is going to be in the master cylinder and replacement will be required. If the fluid level is excessively low in the master cylinder, double check the wheel cylinders in the drum brake system for leaks and replace as necessary.

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1999 Jeep Wrangler - Clutch pedal feels soft. Does not feel like it is fully disengaging when pressed. Hard to get into any gear when Jeep is not moving.


HALLO
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In my sons 1993 Jeep Grand Cherokee there was a dragging grinding sound coming from the passenger rear wheel when you stepped on the brakes. I pulled the drums off and the cylinder was leaking slightly and...


Hi,
Have your son pump the brake pedal until it gets hard. Then as you loosen the bleeder screw at that wheel tell him to let his foot ride the pedal and don't take his foot off until you tighten the bleeder screw.
You see, the pressiure he is building will force the airt out. Do this a couple of times until you get a good stream of brake fluid. He should be able to notice a good pedal again... I'm suspecting he has none or little pedal right now. Make sure you refill fluid in your master cylinder.
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No pressure when i press break, slight leak under left rear tire,


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1990 4Runner bakes are soft


soft(low) brake pedal has 5 possible cause
1 air in system
2master cylinder bypass
3fluid leak
4rear brake shoes out of adjusmet(too far from drum)
5spongy brake pads
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