You should have two bolts on your 1999 olds dont forget to push your calber back.you can use a srewdriver for that.. before you lossen the bolts or your new pads will not go on.if you thik it might be four then look at a brake diogram on line. just type in brakes for a 1999 olds or something to that effect and it will show you the bolts good luck............
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Lift car on jack stands, disconnect the car battery and while under car you will find two bolts that hold it heat shield on front and back of starter. After removing the heat shield, this will give you access to the bolt against the engine on top. Two other bolts easy to get to. Disconnect wires to starter and then remove bolts. Install in opposite procedure
For front brake pads replacement you need only usually wrench set, inclusive 7 mm allen key also. But for rear brake pads replacement you need obligatory a special caliper piston pressing tool, in order to press back rear caliper piston with parking brake automatic adjustment!!! For front brake pads. First you must verify yours front brake disc diameter: 280 mm or 288 mm. After that you can buy the brake pads (with wear sensor). For change front brake pads you must raise vehicle, remove wheels, extract the retaining spring of the caliper, and remove the caliper as follow: 1. Do not disconnect the brake hose from the caliper, and do not allow the caliper to hang by the brake hose! 2. Remove top and bottom caps (on back side of the caliper) for access to guide pins, then unbolt and remove them from the brake carrier. Remove the caliper. 3. Now you must thoroughly clean the brake calipers (free of grease). 4. Remove outer brake pad from brake carrier. 5. Pull inner brake pad out of brake caliper piston. 6. Check up the brake fluid level on the reservor, and emptying if neccessary! 7. Push piston back into brake caliper housing. 8. Install inner brake pad (with expanding spring) in brake caliper piston. (Arrow marked on pad - if exist, must point in direction of brake disc rotation when vehicle is moving forward). 9. Install outer brake pad into brake carrier. 10. Bolt brake caliper housing to brake carrier using two guide pins. Tightening torque is 25 Nm. 11. Install both caps. 12. Insert retaining spring into brake caliper housing. Important: Depress the brake pedal firmly several times while the car is stationary so that the brake pads adjust to their normal operating positions!!! Check brake fluid level and top up if neccessary!!!
If you are feeling a pulsing in the bake peddle the rotors are to blame they maybe warped or may have some forin matter behind them try taking them off and cleaning the mounting surface. You may not be able to tell if they are warped as it does not take much run out to case a vibration. As far as the heat it is normal for rotors to get up to 1000 degrees during braking so unless you are seeing blue spots of them or they are turning red i would not worry about it. with the bake pad problem replace the pads and lubricate the slides (they sell specific lubricant for this at the parts store use it!) if that does not fix it the caliber will have to be replaced as the bore for the piston is worn.
Remove 2/3 of the brake fluid from the master cylinder.
Raise and support the vehicle.
Mark (index) the relationship of the wheel to the hub.
Remove the tire and wheel assembly. Install 2 wheel nuts in order to retain the rotor.
In order to push the piston into the caliper bore and provide
clearance between the pads and the rotor, complete the following steps:
Install a large C-clamp (2) over the top of the caliper housing (1) and against the back of the outboard pad.
Slowly tighten the C-clamp (2) until the piston pushes into the caliper bore enough to slide the caliper (1) off the rotor.
Remove the caliper bolts (2).
Remove the caliper (2) from the rotor and caliper bracket. Suspend the caliper from the strut using a wire hook (1).
Remove the pads (2, 3) from the caliper bracket (5).
Remove the 2 retainers (1) from the caliper bracket (5).
Inspect the following parts for cuts, tears, or deterioration. Replace any damaged parts:
The bolt boots (1)
The piston boot (7)
Inspect the caliper bolts for corrosion or damage. Use new parts,
including bushings, when installing the caliper if any corrosion is
found. Do not attempt to polish away corrosion.
IMPORTANT: Before installing new brake pads, wipe the outside surface of the caliper boot clean. Use denatured alcohol.
Bottom the piston into the caliper bore. If installing new brake
pads, use a C-clamp (2) in order to clamp the piston at the same time.
Use a metal plate or wooden block across the face of the piston. Do not
damage the piston or the caliper boot.
IMPORTANT: Lift the inner-edge caliper boot next to the piston.
Press out any trapped air. The boot must lay flat below the level of the
Install the 2 retainers to the caliper bracket.
IMPORTANT: The wear sensor is on the inside pad. The sensor is
positioned at the leading edge (upward) of the pad during forward wheel
Install the pads (5) to the caliper bracket (3).
NOTICE: Use care to avoid damaging pin boot when rotating caliper.
Install the caliper (2) to the bracket (3).
NOTICE: Refer to Fastener Notice in Service Precautions.
Install the caliper bolts (1).
Tighten the caliper bolts to 31 Nm (23 ft. lbs.) .
Remove the wheel nuts securing the rotor to the hub.
Install the tire and wheel assemblies. Align the index marks on the wheel and the hub.
Lower the vehicle.
Fill the master cylinder to the proper level with clean brake fluid.
Apply approximately 778 N (175 lbs.) of force to the brake pedal 3 times in order to seat the pads.
front ones remove wire clip remove bolts from caliper hang caliper out of way remove pads remove 2 bolts from pad carrier put to one side remove 2 disc retaining bolts remove disc may need hammer clean hub flange with wire brush fit new disc clean pad carrier and refit fit new pads put some copper grease on back of pads push in caliper piston slowly using large grips or g clamp fit and secure caliper pump up brake pedal check brake fluid level do other side for rear brakes see my solutions
Sounds like your brake hose is broken down inside(the rubber hose between the caliper and the meatal brake line) . It will let fluid in and not let it back out acting as a 1-way check valve causing a drag and your pads to wear out early.