I have a 1998 jaguar xj8 i changed the steering wheel knuckle abs ring break pads caliper and now the abs sign is on?

What make and model of auto are we working on? If you changed the rotors and pads, then the problem maybe in the tie rod end or a tire the cords have slipped on. Have someone move the steering wheel from side to side just enough to to make the slack out of the steering without moving the wheels to see if there is any movement in the tierods

Removal

1. Raise and support the vehicle.
2. Remove the wheel and tire assembly.
3. Remove the brake caliper, caliper anchor, rotor and ABS wheel speed sensor.
4. Remove the cotter pin, nut retainer and axle hub nut.
5. Remove the hub/bearing mounting bolts from the back of the steering knuckle. Remove hub/bearing from the steering knuckle and off the axle shaft.

Installation

1. Install the hub/bearing to the knuckle.
2. Install the hub/bearing-to-knuckle bolts and tighten to specification.
3. Install the hub washer and nut. Tighten the hub nut to specification. Install the nut retainer and a new cotter pin.
4. Install the brake rotor, caliper anchor, caliper and ABS wheel speed sensor.
5. Install the wheel and tire assembly.
6. Remove the support and lower the vehicle.

1. Raise and support the vehicle safely. Place jackstands under the frame, then lower the vehicle slightly to allow the control arms to hang free.
2. Remove the tire and wheel assembly.
3. Insert a drift punch into the caliper and rotor vanes to prevent the rotor from turning, then remove the hub/drive axle nut. Clean the threads of the nut.
   1. Unfasten the caliper mounting bolts, then remove and support the caliper aside with a suitable piece of wire.
   2. Remove the rotor by sliding it from the hub.
   3. If equipped with ABS, detach the front wheel speed sensor connector and unclip it from the dust shield.
   
   The hub and bearing are replaced only as an assembly.
   For 1987-92 vehicles, perform the following:
4. Using a suitable front hub spindle removal tool, separate the hub from the halfshaft.
5. Remove the hub and bearing retaining bolts, shield, hub and bearing assembly and the O-ring.
6. Separate the ball joint from the steering knuckle, using the proper tool.
7. Remove the halfshaft assembly and tap the seal from the steering knuckle. Remove the steering knuckle from the hub.
8. For 1993-99 vehicles, perform the following:
   1. Unfasten the hub and bearing retaining bolts and dust shield.
   2. Place the transaxle in PARK.
   3. Using a suitable front hub spindle removal tool, separate the hub and bearing from the drive axle.
   4. If necessary, remove the steering knuckle.
   
   
9. Clean the rust and foreign material from the knuckle mounting face, bore and chamfer to allow the bearing to properly seat in the knuckle.

To install:

1. For 1993-99 vehicles, perform the following:
   1. If removed, install the steering knuckle.
   2. Position the hub and bearing assembly to the drive axle. Apply a light coating of grease to the knuckle bore. If the new hub and bearing has a protective plastic cover, remove it before installation. Also, do not handle the knuckle or hub assembly by the ABS sensor wire.
   3. Install a new drive axle nut and draw the hub and bearing onto the axle.
   4. Place the transaxle in NEUTRAL.
   5. Install the dust shield, being careful not to damage the bearing outboard lip seal.
   6. Install the hub and bearing bolts, then tighten to 70 ft. lbs. (95 Nm).
   
   
2. For 1987-92 vehicles, perform the following:
   1. Install a new hub and bearing seal in the steering knuckle with a suitable seal installation tool. Install the steering knuckle to the strut.
   2. Lubricate the hub and bearing with grease. Fill the cavity between the seal and bearing completely.
   3. Install the halfshaft.
   4. Connect the ball joint to the steering knuckle and insert a new O-ring around the hub and bearing assembly.
   5. Install the hub and bearing, and shield into the steering knuckle. Tighten the bolts to 70 ft. lbs. (90 Nm).
   
   
3. If equipped, attach the ABS front wheel speed sensor connector, then clip the wire to the dust shield.

1. Install the rotor and caliper assembly. Tighten the caliper bolts to 38 ft. lbs. (52 Nm).
2. Insert a drift punch into the caliper and rotor vanes to prevent the rotor from turning. If not already done, install the shaft washer and nut (if equipped). Tighten the nut to the following specifications:
3. 1987-88 vehicles: 3 ft. lbs. (270 Nm).
4. 1989-90 vehicles: 15 ft. lbs. (260 Nm).
5. 1991-99 vehicles: 107 ft. lbs. (145 Nm).
6. Install the tire and wheel assembly.
7. Carefully lower the vehicle, then tighten the lug nuts to 100 ft. lbs. (136 Nm).

Thanks for using FixYa - a 4 THUMBS rating is appreciated for answering your FREE question.

Here I have the Step by Step :

Wheel and tire assembly Brake caliper and secure it out of the way with a piece of mechanic-s wire. Do not let the caliper hang on the hose. Brake rotor Halfshaft retaining nut and discard it Cotter pin and castellated nut from the tie rod end and separate the tie rod end from the steering knuckle using a suitable removal tool. Discard the cotter pin. Separate the tie rod end from the wheel knuckle ABS sensor bolt and the sensor, if equipped Strut mounting nuts and the studs which attach the strut assembly to the steering knuckle Strut from the steering knuckle Lower ball joint pinch bolt. Carefully pry down on the lower control arm to separate the ball joint stud from the steering knuckle. Wheel hub, knuckle and bearing assembly from the vehicle

Please Rate, Thank you

Jaguar 2000-06

Wheel Bearings
Removal & Installation

1. Remove the brake disc.
2. Remove and discard the retaining clip. Detach the ABS sensor.
3. Remove and discard the O-ring seal.
4. Remove the wheel hub and bearing retaining bolts.
5. Remove the wheel hub and bearing.
6. Prior to applying sealer, clean the ABS sensor sealing surface and the ABS sensor aperture sealing surface.
7. Install a new O-ring seal.
8. Apply a 2.5mm bead of Loctite Ultra Blue 587 Silicone (RTV) sealer to the ABS sensor sealing surface.
9. Install a new ABS sensor retaining clip.
10. Install the hub/bearing assembly. Tighten to 90 Nm.

1. Remove wheel knuckle.

NOTE When removing the wheel hub from the wheel knuckle the bearing will be destroyed and the bearing inner ring will remain on the wheel hub.


Fig. Using special tools, remove the wheel hub-X-Type

1. Using special tools, remove the wheel hub.
2. Using a suitable tool, remove the bearing inner ring.
3. Using special tools, remove the wheel bearing.


Fig. Using a suitable tool, remove the bearing inner ring-X-Type



Fig. Using special tools, remove the wheel bearing-X-Type

To install:



Fig. Insert special tool 204-312 in to 204-309-X-Type

1. Insert special tool 204-312 in to 204-309.
2. Support the wheel knuckle on special tools.

NOTE Make sure wheel bearing is correctly orientated with the colored side facing inboard.

1. Align the bearing over special tool.
2. Using special tools, press bearing into wheel knuckle.
3. Change special tool 204-312 to 204-313.
4. Align the bearing and wheel knuckle over special tool.
5. Slide wheel hub over the guide and align to the bearing.
6. Using special tools install the wheel hub.
7. Install the wheel knuckle.



Fig. Using special tools, press bearing into wheel knuckle-X-Type



Fig. Change special tool 204-312 to 204-313-X-Type



Fig. Align the bearing and wheel knuckle over special tool-X-Type



Fig. Slide wheel hub over the guide and align to the bearing-X-Type

1. Raise front of vehicle and support on stands.
2. Remove appropriate road wheel.
3. Using wire or string, secure brake caliper to road spring to take weight off brake hose.
4. Raise vehicle sufficient to provide access for special tool 204-111.
5. Install special tool 204-111 in road spring.
6. Slacken tool adjuster to suit spring length.
7. Install adaptor and thrust collar.
8. Position stem of tool in center of spring passing dowel through slot in suspension turret.


Fig. Install special tool 204-111 in road spring-XJ Range and XK Range



Fig. Position stem of tool in center of spring passing dowel through slot in suspension turret-XJ Range and XK Range

NOTE When turning tool adjuster, ensure that tool stem does not rotate and disturb position of dowel in suspension turret.

1. Engage dowel of special tool 204-111 in suspension turret and rotate to position across slot.
2. Lower vehicle onto stands.
3. Rotate tool adjuster to tension spring.
4. Remove wheel speed sensor securing screw and withdraw sensor from vertical link.
5. Remove nut securing tie rod outer ball joint to steering arm.
6. Release ball joint from vertical link.
7. Install special tool 211-098 on tie rod outer ball joint.
8. Tighten tool bolt to release taper pin from vertical link.
9. Remove special tool from ball joint and position tie rod for access.
10. Remove nut securing upper control arm ball joint to vertical link.



Fig. Install special tool 211-098 on tie rod outer ball joint-XJ Range and XK Range

continue...

You'll need to disconnect the tierod end from the steering knuckle, remove the caliper, caliper carrier, rotor and disconnect the ABS plug. Then disconnect the upper and lower ball joints and remove the steering knuckle. The wheel bearing hub has 3 bolts holding it to the steering knuckle, from the back side.

Except Srt-4

1. Before servicing the vehicle, refer to the Precautions section.
   
2. Remove the front wheels.
   
3. Remove the 2 caliper to steering knuckle guide pin bolts.
   
4. Lift the caliper away from the steering knuckle by first rotating the free end of the caliper away from the steering knuckle. Then, slide the opposite end of the caliper out from under the machined end of the steering knuckle.
   
5. Support the caliper from the upper control arm to prevent the weight of the caliper from being supported by the brake flex hose that will damage the hose.
   
6. Remove the brake pads from the caliper. Remove the outboard brake pad by prying the pad retaining clip over the raised area on the caliper. Then, slide the pad down and off the caliper. Pull the inboard brake pad away from the piston until the retaining clip is free from the cavity in the piston.
   
7. If required, the rotor can be removed by pulling it straight off the wheel mounting studs.
   

To install:

1. Clean all parts well. Inspect the caliper for piston seal leaks (brake fluid in and around the boot area and inboard lining) and for any ruptures of the piston dust boot. If the boot is damaged or fluid leak is visible, disassemble the caliper and install a new seal and boot (and piston, if scored).
   
2. Inspect the caliper pin bushings. Replace if damaged, dry or brittle.
   
3. Completely compress the piston into the caliper using a large C-clamp or other suitable tool.
   
4. Lubricate the area on the steering knuckle where the caliper slides with high temperature grease.
   
5. Reinstall the rotor if removed.
   
6. Reinstall the brake pads into the caliper. Note that the inboard and outboard pads are different. Make sure the inboard brake shoe assembly is positioned squarely against the face of the caliper piston.
   
   NOTE Be sure to remove the noise suppression gasket paper cover if the pads come so equipped.
   
   
7. Carefully position the caliper and brake shoe assemblies over the rotor by hooking the lower end of the caliper over the steering knuckle. Then, rotate the caliper into position at the top of the steering knuckle. Make sure the caliper guide pin bolts, bushings and sleeves are clear of the steering knuckle bosses.
   
8. Reinstall the caliper guide pin bolts and torque to 16 ft. lbs. (22 Nm).
   
9. Reinstall the wheels and torque the lug nuts to 100 ft. lbs. (135 Nm).
   
10. Pump the brake pedal until the brake pads are seated and a firm pedal is achieved before attempting to move the vehicle.
    
11. Road test the vehicle for proper operation.
    

not bolts but pins! i would get a manual even then there not fool proof,,,like the "haynes" book of lies???

This is for the front: Removal & Installation

1. Remove 2/3 of the brake fluid from the master cylinder.
   
2. Remove or disconnect the following:
   
   • Wheel
     
   • Caliper. Suspend the caliper from the frame with mechanic's wire. Do not allow the caliper to hang from the brake hose.
     
   • Caliper mounting bracket bolts
     
   • Caliper mounting bracket from the steering knuckle assembly
     
   • Brake pads from the caliper mounting bracket
     
   • Clips from the inside ends of the caliper mounting bracket and discard
     

To install:

1. Install or connect the following:
   
   • Clips to the inside ends of the caliper mounting bracket
     
   • Brake pads to the caliper mounting bracket
     
   • Inner pad (1 wear indicator)
     
   • Outer pad (2 wear indicators)
     
   • Caliper mounting bracket to the steering knuckle assembly
     
2. Perform the following procedure before installing the caliper mounting bracket bolts:
   
   • Remove all traces of the original adhesive patch.
     
   • Clean the threads of the bolt with brake parts cleaner or the equivalent and allow to dry.
     
   • Apply red Loctite®272 to the threads of the bolt.
     
3. Install or connect the following:
   
   • Caliper mounting bracket bolts to the steering knuckle. Tighten the caliper guide pin bolts to 74 ft. lbs. (100 Nm) on 15 series or 80 ft. lbs. (108 Nm) on 25/35 series.
     
   • Caliper
     
   • Tire and wheel assembly
     
4. Refill the master cylinder to the proper level with fresh brake fluid. Pump the brake pedal slowly and firmly in order to seat the brake pads. Burnish the brakes as needed.
   

you have to raise vechicle.use jack stands.block rear wheels.apply parking brake.when loosen axle nut.its more easier to leave wheel on.let vechicle weight hold wheel from turning while you loosen axle nut.you need to get a 1/2 break bar or large ratchett wrench with a deep socket .you need to buy socket use to remove axle nut a regular socket would probably break.when you remove the axle nut.remove brake caliper and brake pads.set them aside dont disconnect brake caliper.get a piece of wire to hang it out the way.dont use brake hose.could damage it. remove brake caliper support bracket then the rotor.get a hub removing tool remove hub.then loosen hub and bearings bolts .then remove shield hub and bearings assembly with O-ring.disconnect ball joint from steering knuckle using the proper tool.remove the halfshaft assembly and tap the seal from the steering knuckle.remove the steering knuckle from the hub.now that drive axle out the way.get the seal removing tool.its a flat tool with two hooks on it.to pry seal out transmission.or you can use a small chisel to clapse the seal but be careful dont damage the seal housing.when installing new seal coat it with transmission fluid.drive it in using a large socket.if you are reusing same axle replace circlip on the end of it.now putting back together.install a new hub and bearing seal in the steering knuckle with a seal installer tool .install steering knuckle to the strut.lubricate the hub and bearings with grease.install halfshaft.connect ball joint to the steering knuckle .install a new O-ring around the hub and bearing assembly.install hub and bearing assembly into the steering knuckle.tighten bolts to 75 ft lbs.install rotor then brake caliper support bracket bolts 120 to148 ft lbs.this is mounting bracket bolts only not the caliper bolts to brake shoes.put brake shoes and caliper back on torque 38 ft lbs.install shaft washer the axle nut to 180 ft lbs.tighten much as you can.before setting car on ground.to torque it to 180 ft lbs place car wheel back on set it down so the car weight keep wheel from turning.i hope this information works out for you good luck.and work safe.