hi i got a 1998 chevy blazer 4x4 with 195,000 miles on it and it wont start but it will if you spray either down the throttle body after it warms up it you can shut it off and it will start back up fine on its own but letting it sit overnight it wont start without the either again. when its running it runs great

 

Are there any other symptoms? is the service engine soon light on? I've had a couple things cause this with other vehicles but i don't want to jump to conclusions. There are a lot of guys on here that are really good at diagnosing from a distance but they well need a much information as possible. Was it acting any different before this started or did it just happen all at once with no signs of any trouble? I'll help as much as i can but I'm sure one of the more knowledgeable guys will jump in and get it figured out pretty quick. I'm better when it's right in front of me, but then again I'm sure everyone is lol just my