My 1998 Chevy Blazer crank excessively when I try to start it. It always starts, and runs good when I get it started, but I would really like a smooth start. I have recently changed the fuel filter, spark plugs, battery and air filter. Any ideas?

Do you know if you have TBI system throttle body injecttoin or fuel injectors TBI has one main injcetor fuel injection has 1 injector for erevy cylinder BLAZERS MOST HAVE 4.3 VORTEC ENGINE if so it would be fuel injectorsit could be a probem with leaky injectors or dirty injectors or fuel pressure regulator its in the plume with the injectors or afuel pump pressure out put problem thats vary comoun 95 -05 try adding fuel injector cleaner to fuel for a couple tanks of gas the problem may fix it self see what happens its the cheapest and easyest think to try

Leaky injector/s is flooding motor, mechanically clean or replace. And clean throttle body while you are at it with spray cleaner. Should be almost spotless where large throttle valve opens and closes.