Key won't remove and engine won't stop except screwdriver inserted in release hole under steering wheel

my ac doesn't really wor.. When's it's cool outside it blows room temp air but when it's very hot all it does is blow hot air. What part would u suggest I get to fix it. It's not the anti freeze or anything because we have already checked all that. My husband and father in law seem to think it may be the sensor or motor

Cold weather turns over but won't start. Usually try short turnover intervals otherwise battery runs low. When warm weather I don't pump pedal, it starts. I bought new 700cca battery, now cranks faster but still takes 4+ cranks to start. Alternator, cables, connections are good

I have replaced the 2 upstream o2 sensors and one downstream (the one after the catalytic converter) where is the fourth sensor?

When I start to leave from being parked for a while as I either back out or go forward I hear a knocking noise once or twice from the front in and I've also noticed the inside of my front tires are kinda worn what could be the issue there ??

When that happens, I can't get the key out and the battery dies. Sometimes if you let it idle for a while, it will work.

I wana know if using a fuel injector cleaner will help with my car feeling like it's choking. It's cutting out or chugging almost.

In my driveway

The car is now stuck in the R slot and will only go backwards. Please Help?

How do I reprogram computer on 1998 0ldsmobile bravada? How much does it cost to flash ecm?