Roadmaster starting problem

i have a 94 buick roadmaster lt1 , its acting like the car battery is dead but ive put a brand new battery in it and it still acts like its dead anyone have any idea whats wrong. when i turn the key the dash lights go off and it is like i have a dead battery it wont even make 1 revolution. could it be my opti is bad? it is a stock engine with 115,000 miles.

i have a 94 buick roadmaster lt1 , its acting like the car battery is dead but ive put a brand new battery in it and it still acts like its dead anyone have any idea whats wrong. If it acts like it's dead, it may very well be. Have you checked the battery voltage and are the cables tight? Have you started the car since the battery was installed?

If it acts like it's dead, it may very well be. Have you checked the battery voltage and are the cables tight? Have you started the car since the battery was installed?
Along with that also check the condition of the battery cables, and make sure the connections are clean, especially any residue from the old battery. Sometimes, on older cables, the insulation may get torn or opened in a spot, especially where the cable end by the battery terminals are, and old residue from the battery gets in there causing resistance.

Thanks for the replies everyone they are greatly appreciated. The cables and terminals on the car are brand new. i replaced them along with the battery and the ignition coil. still no luck yet.

What about the starter and solenoid, have you checked the function by jumping the purple wire to battery postive (+)? Did this problem start before you installed the new battery?

No i have not jumped the starter i will have to try that. The problem started before i bought the battery. Do i just tap the wire with a 12 volt battery or what?

Hello. Just found a problem people! Pulled my starter and found out that the case around the neck where the gear engages the fly wheel is cracked almost all the way around and the gear is kind of at an angle. I think it was jammed in there preventing it from spinning. Going to change starter and see if the end result is positive.

Starter change did the trick. Problem solved. Thanks to all.