Have good battery but nothing happens when i turn ignition key. not even clicking sound

SOURCE: Ignition turns and key warning light comes on. Its a 98 Ford Expl

Sounds Like the Starter RELAY is Bad After Exhausting All other Test, Go For The RELAY
A SURE-SHOT way Is to Jumper Wire From Battery to (STARTER SIDE) of Relay if starter Works then Its the Starter Relay if NOT>>Then Its the STARTER<) Relay Instruction Below. STARTER Instructions Very Bottom
REMOVAL
WARNING: WHEN PERFORMING MAINTENANCE ON THE STARTING SYSTEM BE AWARE THAT HEAVY GAUGE LEADS ARE CONNECTED DIRECTLY TO THE BATTERY. MAKE SURE PROTECTIVE CAPS ARE IN PLACE.

1. Disconnect the battery ground cable.
   1. Disconnect the starter motor solenoid relay switch wiring.
   1. Remove the protective cover.
   2. Disconnect the push-on electrical connector.
   3. Remove the nuts.
   4. Remove the cable.
      1. Remove the starter motor solenoid relay switch.
      1. Remove the engine sensor/generator wires.
      2. Remove the bolts and ground wire.
      3. Remove the starter motor solenoid relay switch.
      INSTALLATION
      
   5. Follow the removal procedure in reverse order NOTE: When the battery is disconnected and reconnected, some abnormal drive symptoms may occur while the vehicle relearns its adaptive strategy. The vehicle may need to be driven 16 km (10 miles) or more to relearn the strategy.

1. Disconnect the battery ground cable.
2. Raise and support the vehicle.
3. Remove the starter motor solenoid terminal cover.
   1. Disconnect the starter wires.
   1. Remove the nuts.
   2. Disconnect the wires.Remove the nut and the starter ground cable
   3. Remove the bolt and the starter motor.
      1. Follow the removal procedure in reverse order. NOTE: When the battery is disconnected and reconnected, some abnormal drive symptoms may occur while the vehicle relearns its adaptive strategy. The vehicle may need to be driven 16 km (10 miles) or more to relearn the strategy.
      
      

SOURCE: 1990 ford f-150 nothing happens when ignition is turned on

Solenoid was not mentioned as replaced.

If it was not part of new starter...that's the culprit.

Ignition switch (smaller wire) activates the solenoid (heavier wire) which in turn activates the (high current) starter.

SOURCE: Turn key to start - nothing happens

I had same problem w/ my '88 Ram50. Turned out to be bad contacts on the battery cables. Temp fix and test was to put a little screw between the post and the end connector. Didn't have a problem then, so I replaced the cables.

SOURCE: 2003 gmc 2500 hd turn key nothing happends

try checking your neutral safety switch.

SOURCE: Wont start, gives error code IN 02 on dash

I had the same problem with my 94 jetta, I would also have the alarm turn on as I connected the battery, if you lower the fuse box being careful not to disconnect anything, there is a box to the upper driver-side aria(that is if you are laying on your back looking up under the dash) this is the alarm control unit, there should be a white label on the wires indicating so (think it says alarm in German) theres a 6 pin(wire) connector and a 10 pin. unplug both connectors and look at the 6 pin connector. There is numbers where the wires are located on the connector, if you take a piece of wire and "bridge" wires 5 and 6 (The largest wires on the connector, red/red w/black stripe) your starter should work, any problem with the alarm system can cause the starter to be disabled. after bridging the wires or simply connecting them do not plug anything back into the alarm box, after this you standard vehicle alarm will be disabled permanently, but you will be able to start your car. If this dose not fix the problem you may have a defective starter, hope this helps.