My girlfriend blew a head gasket on her 3.4L Grand Am so I decided to fix it for her. I bought an upper end gasket set and replaced the cylinder head gasket, upper and lower intake gaskets, injector o rings. I removed the fuel rail from the lines and without realizing it i had lost the o ring for the fuel line to fuel rail. The car started and was spewing out fuel so i diaconnected the line from rail and installed a new o ring, now her car won't start. I have tried using starting fluid but still wont start, just cranks. I have spark and obviously fuel. I have yet to do a compression test. If anyone has other theories i'd really like to know.