My truck will not start. i have a new starter, alternator, fuel filter fuel pump, mas, air filter. any other suggestions. its fine once its started. i spay choke spray in it to get started.

I have had similar problems and had to replace the fuel pressure regulator. It's a major expense because it sets below the diaphram in the intake manifold. Ask your mechanic about it, it may be the issue. I would get about 30,000 miles between replacement, I've replace it 3 times since purchasing the 2000 chevy blazer new, first one was under warranty.

Fuel pressure regulators very rarely goes bad...it is uaually low pressure from the fuel pump..so the pump needs to be replaced (quote from a GM. Tech. from General Motors ) I have replaced the fuel pump 2 times in 1.5 yrs. And the fuel pressure regulator can be purchased from Autozone for $59.95...Just gotta know someone to replace it...Also vehicle most of the time, will not even run with a faulty fuel pressure regulator..It will cause the engine to flood out due to fuel leakage into the manifold. Just went through all of this with my Blazer.