98 AURORA wont start sometimes, all else comes on. it takes a few tries for it to start.once it strats security light stays on.anyone familiar with this issue?

SOURCE: wont start security light stays on

My girlfriend had the same problem, so we took it to the local dealer in Costa Mesa, CA and were told she needed a new engine to the tune of 5K. We decided to take it to our local mechanic and he discovered that the “ignition control box”, which apparently has the antitheft controls too and shuts the flow of gas to the engine because it thinks its being stolen when it malfunctions, was causing the starting problem. Once, the box was replaced it worked fine. Because the IBC controls antitheft, it will need to be “reprogrammed” be someone that has access to the proper equipment or the dealer. I think the whole thing was about $800 - $900. Sure beats $5,000

Hope this helps,
B

SOURCE: 97 olds aurora wont start

did you get the tumbler from the dealer because some have coded keys

SOURCE: security light comes on and car doesn.t start

try another key. if this doesnt work the wire in the tumbler assembly most likely broke and you will need it replaced. ( Ignition Switch)

SOURCE: 2000 INTRIGUE WONT START.. ALL

Check your battery terminals. If it's anything like mine, then your positive (+) terminal is gone/bad.
I've replaced batter on mine 3 times so far, all thanks to the (+) terminal being bad.
Hope this helps.
Cheers !!!

SOURCE: my headlights wont work only my brights will come

The most likely culprit is a defective hi/low beam light switch.