The starter solenoid/relay switch is going bad. Eventually, it will just click and not start.
A bad relay switch could be the culprit if dash lights remain on after engine starts in a Toyota. Cold weather can also cause these lights to stay on after the engine starts.
* Chevy Caviler * Honda, CRX * Toyota Corolla * Buick Century * Cooper * Mini Cooper
There are a few things that can cause a coolant leak but in your case it is probably the water pump. When a water pump starts to go bad it will leak coolant from the bottom.
After 50.000 miles or so. Also if the car starts to use more fuel than is normal, or if the engine starts to lose power or if the engine starts to get too noisy.
In The End
Your head gasket could have let go. If that isn't it then a valve or piston has broken.
check your brake pads
sounds like a fuel issue.
Toyota
Might be a cracked vacumn hose, there are plenty, and the age is about right for this to happen.
If the check engine light is flashing the engine is misfiring. Most likely a bad ignition coil.
two very good possibilities are the battery, and the starter. its easy to test, just try to jump start it. if it still just clicks it needs a starter. if it starts its probably the battery.