2000 grand cherokee ltd.Brake problem

In most cases the shifter button is controlled by a solenoid activated by a switch on the brake pedal when the pedal is depressed. If the button will not release there may be a problem with the brake pedal switch ( Do the brake lights work when the pedal is pushed? ) the shifter release solenoid or wiring. There may be an override to release the button somewhere near the shifter. Check owners manual to see if equipped with safety release button

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

Sounds like a bad brake booster. To test, pump up the brakes with the engine off. While holding the brake pedal down,start the car. The brake pedal should drop a couple of inches and hold. If it doesn't, replace the booster.

could be one of several problems. first check your brake fluid level, if its low then add some and before you replace the cover try and reset the rubber end back up into itself. if one of the chambers is empty then you'll need to fill it back up and bleed the brakes. if after you refill the resevior and it keeps happening you will need to check the lines for a leak. if the brake fluid is good then you might have a problem with the vacuum assist and you'll want to take it to a mechanic.

That problem is the first warning that the brake master cylinder is beginning to fail. It is internally bypassing.

The brake light switch is defective or out of adjustment. More than likely located on the brake pedal arm near the top.

that is the plunger on top of your brake pedal.just remove and replace

if you cant find any leaks in lines or cylinders or calipers u probaly have a bad booster
see lots come threw my shop like that but also their is a vacum line that runs to the booster and it hooks to a plastic valve that goes in to the booster those get gloged and you loose pedal as well try replacing that before you bye a new boooster

Something doesn't sound right, you shouldn't have to remove the brake line to install pads. Did you have to do this on both sides? Do the new pads and the old pads look the same? Did you get the caliper on crooked? Just recheck your work first before replacing more parts. When you install the caliper, You have to hook the pad on one side first before you slide it over the rotor.

It it a brake booster problem.I am changing mine this weekend.You can get a new one form autozone for 149.00 or get one at the junkyard for about 70.00.I am installing mine this thanksgiving.I can send you the step by step instructions if you like.I have a 99 jeep grand cherokee limited edition and for once i thought i had a snake in the car..