Got a 98 trailblazer 250 when i go to start it all it does is click maybe 2-3 times then it starts and will start all day another day same problem.. whats up with that??

 

It could be either the starter is going bad or loose connections at the battery or starter.

 

If it only does it the firt time I would say the battery is low, after you run it awile it charges up and is good for the day, when it sits it looses some charge, check it with a multi-meter before you start it, should have 12.5 volts.