1999 Buick Lesabre, won't start, good battery power, only clicks when you try to start it. Just started, no indication of a problem leading up to this. Made sure vehicle was in park and also tried starting in neutral. Tried holding gas pedal down while in start position, twice, and still only clicking.

STARTER SELONOID OR DIRTY BATTERY CABLES OR LOOSE CONNECTION ON STARTER.iF YOU REPLACE STARTER REPLACE WITH COMPLETE UNIT NOT JUST SELONID GOOD LUCK.PS BE SURE BATTERY IS UP TURN LIGHTS ON AND HAVE SOMEONE WATCH THEM AS YOU TRY AND START TO BE SURE THEY DON`T GO OUT IF THEY DO--- GO TO CONNECTIONS ON BATTERY OR TRY JUMPING GOOD LUCK