I have a 99 Blazer that won't turn over. It has gas, battery is good, and alterntor is good. My father in law suggested that it might be my Distributor and Rotor, and told me to check it by taking spark plug wire on drive side out and putting it to a new plug to see if I get a spark. any suggestions to what it might be if this isn't the problem. I am affraid it might be my fuel pump. I am not car/truck smart what so ever, any suggestions would be greatlly appreciated.

Chris

 

It is either spark, fuel or timing. If you have spark then I would check fuel pressure at the test port. You need about 55 psi for it to run. It should hold pressure after key is off. Having gas in the tank or even at the test port if it is not at the right pressure it will not run.

 

Try starting it in Neutral...just a hunch