How to remove horn cover on 86 ford ranger--did remove lower 2 screws--upper 2-??

Sounds like the steering wheel horn switch or loom is faulty.
Be carefull if it has an air bag, it may go off!

Steering Column Trim Cover Replacement

Important: You must check for 2 pan head tapping screws (1,2) in the lower trim cover before removal.
If necessary, remove the 2 pan head tapping screws (1,2) from the lower trim cover (3). Remove the lower trim cover (3).
If screws are not present in the lower trim cover, proceed to the next step.
Gently unsnap the lower trim cover from the upper trim cover.

Important: You must check for 1 TORX® head screw (1) in the upper trim cover (2) before removal.
If necessary, remove 1 TORX® head screw (1) from the upper trim cover (2).
If a screw is not present, remove the upper trim cover (2).

Remove the steering column's upper and lower covers. Then remove the shift cable from actuator and then remove the electrical connector and then remove the screws to remove the actuator from the steering column.

Passive Anti-Theft System (PATS) Transceiver module is around the key lock cylinder behind or under the plastic cover on the upper steering column'
Passive Anti-Theft System (PATS) Transceiver Removal

1. CAUTION: Electronic modules are sensitive to electrical charges. If exposed to these charges, damage may result.
   Disconnect the battery ground cable, Refer to Section 414-01

1. Remove the ignition switch lock cylinder.
   1. Insert the ignition key into the ignition switch lock cylinder and turn to the RUN position.
   1. Push the ignition switch lock cylinder release tab with a punch while pulling out the ignition switch lock cylinder.
   2. If equipped, remove the tilt wheel handle.
   3. Remove the upper and lower steering column shrouds.
      1. Remove the screws.
      1. Remove the upper and lower steering column shroud.
      2. Remove the lower instrument panel steering column cover.
         1. Remove the screws.
         1. Remove the lower instrument panel steering column cover.
         2. Remove the instrument panel steering column opening cover reinforcement.
            1. Remove the bolts.
            1. Remove the instrument panel steering column opening cover reinforcement.
            2. Remove the anti-theft transceiver module.
               1. Remove the screw from the bottom of the transceiver module.
               1. NOTE: Only apply pressure or leverage below the key cylinder lower rib.
                  Disconnect the electrical connector and remove the module.

1. If equipped, disable the SIR system. Disconnect the negative battery cable.
   
2. Remove the upper steering column cover.
   
3. Remove the lower steering column cover screws and lower the steering column cover.
   
4. Remove the 2 switch mounting screws and remove the switch.
   
5. Detach all wire connectors from the combination switch. Push locking tabs to remove the wires.
   

To install:

1. Attach all wire connectors to the combination switch.
   
2. Install the combination switch to the column with the 2 attaching screws.
   
3. Install the lower steering column cover screws and lower steering column cover.
   
4. Install the upper steering column cover and attaching screws.
   
5. Connect the negative battery cable.
   
6. Enable the SIR system, if equipped.
   

1. Open liftgate. 2. Remove both taillight assemblies by removing 2 hex-head bolts located in the area revealed when the liftgate is opened. 3. Remove 4 plastic retainers on the very bottom of the bumper cover in the rear. 4. Remove 2 phillips head screws in the wheel well rear lip. 5. Remove 4 pop-up plastic retainers in liftgate area. Use two screw drivers to lift the head and then pull the entire retainer out. 6. Remove a hex-head bolt from each side in the area revealed when the taillight assembly was removed. 7. Bend the bumper cover outward on each side to clear the wheel well lip and remove the bumper. Have a blanket or carpet on the ground to protect the bumper. 8. Remove metal clips from tabs that connect the upper bumper cover to the lower bumper cover. 9. Drill out pop-rivets that connect upper bumper cover to lower bumper cover. 10. Push tabs out of slots to separate the upper and lower bumper covers. 11. Release tab locks on chrome trim pieces and remove from upper bumper cover. 12. Reverse this process to replace the bumper cover.

This is what it looks like to replace it....you decide on what your level of mechanical knowledge is. I hope this helps you!

Removal & Installation

1. Disconnect the negative battery cable.
   
2. Remove the lower instrument cluster cover as follows:
   
   1. Remove the steering wheel. Refer to Section 8.
      
   2. Remove the 2 column cover screws and the cover.
      
   3. Remove the 9 cluster module mounting screws.
      
   4. Carefully pull the cluster module outward and disconnect the electrical connectors.
      
   5. Remove the ignition switch illumination bulb and remove the cluster module.
      
   6. Loosen the 2 cover hinge screws and the 6 upper cluster cover screws. Remove the cover.
      
   7. Remove the lower cluster cover panel.
      
3. Remove the lap duct and the defrost duct.
   
4. Remove the mounting nuts from the hinge bracket.
   
5. Remove the steering column upper mounting bolts/nuts and allow the steering column to hang down.
   
6. Remove the screw securing the ignition switch to the ignition switch housing.
   
7. Disconnect the 4 ignition switch snap connectors located to the left of the steering column.
   
8. Remove the protective looming from the ignition switch wires.
   
9. Note the position of each wire in the 4-terminal connector for installation reference. Disconnect the 2 wires (green wire and red wire/orange tracer) of the key-in warning buzzer at the 4-terminal connector by disengaging the tang with a paperclip or other suitable tool.
   

To install:

1. Connect the 2 wires of the key-in warning buzzer to the 4-terminal connector as follows:
   
   1. Align the flat side of the wire end with the grooved portion of the connector.
      
   2. Push the wire into the connector until the locking tang engages the end of the wire.
      
2. Install the protective looming around the ignition switch wires.
   
3. Connect the 4 snap electrical connectors of the ignition switch to their mating connectors, pushing together until the locking tangs are in place.
   
4. Install the ignition switch into the switch housing and secure it with the screw.
   
5. Raise the steering column into position. Install the upper bracket bolts and tighten to 12-17 ft. lbs. (16-23 Nm).
   
6. Install the cluster support nuts and tighten to 6.5-10 ft. lbs. (8.8-14 Nm). Install the hinge bracket nuts and tighten to 12-17 ft. lbs. (16-23 Nm).
   
7. Install the lap duct and defroster duct.
   
8. Install the lower cluster cover panel and the cluster cover.
   
9. Install the ignition switch illumination bulb. Connect the electrical connectors and install the cluster module with the attaching screws.
   
10. Install the column cover and the steering wheel.
    
11. Connect the negative battery cable and check ignition switch operation.
    

Ignition switch removal and installation—1989 Probe

RAISE AND SAFELY SUPPORT VECHICLE.PLACE A SUPPORT UNDER THE REAR AXLE.REMOVE NUTS AND BOLTS ATTACHING THE SHOCK ABSORBER TO THE RADIUS ARM.REMOVE THE NUT SECURING THE SPRING TO THE AXLE AND REMOVE THE RETAINER.SLOWLY LOWER THE AXLE TO RELIEVE THE SPRING TENSION.REMOVE THE SPRING BY ROTATING THE UPPER COIL OUT OF THE TABS IN THE UPPER SPRING SEAT - TO INSTALL.INSTALL. THE TOP OF THE SPRING IN THE UPPER SEAT.ROTATING INTO POSITION.RAISE THE AXLE UNTIL SPRING IS SEATED IN THE LOWER SPRING SEAT.INSTALL THE LOWER RETAINER AND TIGHTEN THE NUT TO 70 - 100 FT LBS .THEN CONNECT THE SHOCK ABSORBER TO THE RADIUS ARM AND LOWER THE VECHICLE.

unscrew 2 screws in black plastic handle, remove black plastic but do not unplug if electric windows look in lower rear corner remover one screw there and one screw behind the black plastic handle and if hand crank windows pull not to hard and separate window crank and find a phillips or torx screw in the but have window down and gentle get fingers on lower sind of door panel and slide upwards towards the sky and it shoud come off

You're not supposed to replace the uppers on a 98 ranger. They're not meant to be pressed out because its built in with the control arm as a single unit. Just buy new upper control arms and save yourself the trouble. Ford also claims you have to replace the control arm for the lowers as well, but that's BS. They can be replaced fairly easily with the proper tools.