I have a 95 midsized blazer with a 4.3 vortec engine. I just recently put a new distributor and distributor rotor and wires in and new battery and new fuel pressure regulator. I also replaced the spider injector around 2 or 3 years ago. The problem is it wont start but it does turn over. At first i was going to put a new fuel pump in but i decided not too because its more expensive and harder to replace. So instead i just replaced the fuel pressure regulator but it still wont start anyone have ideas for me?

 

do this, put starter fluid or a little bit of gas in to the intake, if it starts you know there is nothing wrong with the spark, if it doesnt then theres something wrong with the spark, if it does start but cuts off, theres a problem with fuel getting there, find a tool that messures the fuel pressure

change the fuel filter btw

same thing happened to me, i went out for a drive, had to leave my truck about an hour away because my fuel pump crapped out on me, and i replaced the fuel filter, and FPR, and then thr fuel pump whatever it is, good luck

 

Thank you for replying and will try that

 

when i mean intake i mean the throttle body