i recently bought my 2008 chevy colbalt it was perfect! no issues purred and was a great car. i got into an accident that i had to replace the radiator. i did so and the radiator fan. and now its having issues. i turn the key and it turns and turns but doesnt catch and there is a smell like exhaust fumes. i also have a small plastic tube that i have no idea where it goes in my engine. i have a 4 cyl 2.2 engine. please any help will help. text at 5129058241 or call.

 

Welcome to the forum. The "small plastic tube" may be a vacuum hose. There should be a label under the hood with a vacuum diagram which may shed some light. However, I'm not sure the likelihood of it preventing the engine from starting. Anyway, am I to understand that you yourself replaced the radiator and cooling fans? Yet, you don't sound too unfamiliar with the vehicle. There could be a lot of hidden damage after a front-end collision. Consider towing it in and getting it serviced.