Turn key and starter does not turn - 2002 Jeep Grand Cherokee

Check the ground and hit the starter while some one turns the key to start. one more thing make sure the netural safety switch is working.

Could be the neutral safety switch if it won't crank in neutral or park, could also be the starter has failed.

Definitely a starting system problem. That sound you hear in the back is the fuel pump.

Starting system circuit components (besides wiring harness)
1. Ignition Key Switch - closes the starter relay control circuit to energize the relay and close the contacts inside the relay (you can check this by locating the relay in the underhood fuse/relay box and have a friend turn the key while you listen/feel if the relay 'clicks'
2. Starter Relay or its Contacts
3. Starter Solenoid - pushes/pulls the starter gear into the engine's flywheel ring-gear and its contacts close to provide battery power to the starter itself.
4. Starter itself - poor brush contact with the armature's commutator will prevent the starter to spin/turn

If you are 'Electrically' talented, you can check to see if you're getting battery power to the starter solenoid by using a simple 12 volt test light/bulb. Connect one lead to the starter solenoid terminal and the other to chassis/engine ground and have a buddy turn the ignition key - if the light turns 'ON', then you know that particular circuit is OK but the starter solenoid is not energizing to push the starter gear into the flywheel ring-gear to turn the engine over. If it doesn't, the problem is elsewhere (wiring, starter relay, starter relay control circuit, etc).

You can have a qualified Hyundai Service Technician properly diagnose your vehicle. OR, you can Go to www.hmaservice.com and register your vehicle by VIN #.. you'll then have access to wiring diagrams, shop manuals, service bulletins, illustrations, etc.

The starter solenoid is failing. Sooner or later the starter will probably not disengage after you turn the key off. Then you'll have to disconnect the battery in a hurry. It's no fun. And at that point the whole starter will probably have to be replaced. Depending on how long it takes you to unhook the battery. Trust me. That is no way to start your day. It's really bad for your blood pressure. Good Luck.

you may have a bad cylinder lock, or ignition switch, you may have a bad key if that car has a chip key.

sounds like the starter silinoed is bad.should be on top of the starter.

If the switch is okay and not sending current to the starter the starter or starter sold. have shorted.

no this is either caused by a defective starter solenoid (on starter) or a defective positive battery (red) cable, both are common on this year of explorer.

your starter is bad.... the two contacts inside the solinoid are worn out only way to fix is replace the unit as a whole bet ya you get click click click then my start.. bet my life on this one been fixin toyotas for 20+ years

you may have to replace he starter and starter cylinoid