Car wont turn on......it was making a really loud rumbling sound for the past week or so and it just quit working. (the rumble sounded like something was off balance....like when your washing machine gets off or something....) I got it to start for about 5 seconds earlier and it started smoking pretty bad.

SOURCE: all dash warning lights came

Hatterasnc,

You're alternator has gone bad and the vehicle was running on battery power. The "clicking" sound is your now dead battery that does not have enough power to turn over the starter. You might also want to check your power steering pump for leak. This is a know problem with early LS400s and will most likey be the cause of the alternator failure. I just dropped $1050.00 to fix the very same promblems you have.

SOURCE: car wont start

have you checked all the grounds and did you replace the starter?

SOURCE: CAR WONT START

that would be the starter gone bad .needs to be replaced,it is a real job the first time around.

SOURCE: wont start

could be alot of things.. no ingintion/plug wires in wrong order,no fuel,really bad timing. i would check to see if your getting fuel by either checking the pressure release valve on the fuel rail/fuel line and push in the valve and fuel should squirt out or press the gas and see if fuel comes out of the carb. check the ignition by unhooking a plug wire and putting it close to the plug or distrubitor and look for the spark. check the plug firing order (find the order online or in a manual and check what is on the vehicle). if you can adjust the timing on the distrubitor adjust it and try starting it to see if it helps

SOURCE: it wont start ot turn

Do any of the interior light work? Does the radio work? If the answer is no, then the first thing to check is the battery and its connections.
If lights, radio and other things work, then you could have a problem with ignition switch, starter solenoid, starter or a wiring issue.