2000 venture wont start

my 2000 chevy venture wont start it only happens sometimes. today it wont start at all, when i put the key in all is fine but when i turn the key it acts like a dead battery but the battery is new. sometimes it will click like it is the starter but its not. someone said toclean the ground wires any one have any suggestions? please help.

I had same problem. Checked the grounds, Neutral safety switch and still had an intermittent start. Problem was it never happened when I was jumping it. Local elec shop trouble shot the lines and I had a very slight short in the starter whereby with a jump (two batteries) it'd start but without a jump it was a dice roll.
Got a new starter and all WAS well...and then started again after a trip. Now when it does crank over it seems to be getting no fuel.

Update--After 2 weeks same problem--took it to Chevy Dealer, who thought it was a bad (new) starter or ignition switch but then found it was a loose wire to starter connection AS WELL AS corrosion in between the battery cable bolts and the connection cover over the bolts. Even though I had cleaned the wall of the battery and the bolt threads, there was poor continuity from bolt to cable... Has worked perfect for 3 weeks and 30 starts.

car won't start could i have the ignition module sequence all wrong? i have 5-2/3-6/4-1 should it b 1-4/2-5/3-6?

be sure to check the battery leads real good... ours were corroded and would make contact but then act like battery was completely dead. a little cleaning and it has worked great.

car won't start could i have the ignition module sequence all wrong? i have 5-2/3-6/4-1 should it b 1-4/2-5/3-6?As you stand in front of the engine, the correct order for the ignition modules from passenger side to driver side is 5-2-3-6-4-1. For the plugs, odd cylinders are on the back of the engine and evens on the front.