[Ricky McB.]

I havent the slightst idea why my blazer wont start. Thats where your thoughts come in. Any ides on possible reasons it will not start?

 

[oldeerslayer]

Year would help. If the vent valve is leaking fuel is it possible you got the vent line mixed up with another when re-installing the lines?

 

[Gen210]

Test fuel pressure
What is the pressure?
Check fuel line orientation:
Delivery-vent-returb
Disconnect power at the pump, spray starter fluid in throttle body to see if it will start.

 

[msdibble]

Have you checked or replaced your fuel pump relay?