Whhow do remove brake booster from 99 Chevy lumina

should be rear ports

Do you have power in and out of the turn signal switch ?

hello, we can supply you all kinds of brake parts ,brake disc ,brake caliper and brake boosters, may help you . all kinds of vacuum power boosters

you will remove the one bolt that holds the caliper to the bracket. Once that bolt is removed you can rotate the caliper away from the rotor and then slide it off the other caliper slide. Sometimes you will have to rotate it, remove the caliper bracket mounting bolts and then remove the caliper assembly due to the lack of clearance.

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the brake booster has a vacuum leak causing this to happen

check to make sure the power brake booster is not leaking, do this by starting the van and just let it idle in park and push the brake pedal if the engine stalls or surges or you hear a sucking noise under the dash then replace the power brake booster if there is none of these systems then replace the idle control motor. GOOD LUCK

It sounds like it could be your brake booster starting to fail. The brake booster is Vacuum operated so it requires suction/vacuum from the engine. When the booster fails it allows the engine to **** all that air and it bypasses the carburator / fuel injection system so then it wants to quit as the wrong fuel and air mixture is getting into the engine.

Quick test - Remove the vacuum line from the brake booster and hold your thumb over the end of the line/ hose. You will feel the suction but when the hose is closed off the engine should run just fine. When the thumb is removed it will idle very rough and maybe even quit. DO NOT drive the car withouth the vacuum hose removed.

Your booster will look something like this When you open the hood and are looking at the firewall on the back of the engine compartment you will see it directly in front of the steering wheel area on the right side. The hose that you want to remove will have an end like this. It could be black or white.

If the booster is your problem, you may want to have a local shop do the install as it is involving your brakes. That is a huge safety factor and you want it done right.

Good Luck.

Those four nuts are loosened from inside the car, above the brake pedal. They are regular nuts, no special tools required besides a ratchet and proper size socket.

It sounds like a faulty check valve, it is located inline with the cruise control vacuum line or the vacuum brake booster vacuum supply line.

remove retaining clip and slide the power brake push rod off the brake pedal pin, then remove booster to firewall nuts. installation is in reverse order.