2001 chevy blazer 4x4 4.3L V6 vortex. I have replaced the fuel pump and distributor cap. It ran for a day and is doing the same thing again. It will crank but not start

SOURCE: 2001 chevy blazer replaced fuel pump, wants to

hi its rob was it running befor u replaced the pump if its petrol take out the spark plugs maken sure not to mess up the timeing give them a clean .if its deizil prime the system o open the injectors

SOURCE: I have a 2001 chevy express 1500 v6 it wont start

it could be the Ignition control Module

SOURCE: i have a 2001 chevy

misfires can be caused by faulty ignition components, but they can also stem from other components. Such as faulty injectors, or improperly timed or unseated valves. Sounds like you have touched on all of your ignition suspects.
Are there any codes present other than P0304, P0305 and P0306? If so they should help guide you in the right direction. If not, You might want to make sure your valves are seating and if so, go ahead and swap an injector from a misfiring hole with a good one from a hole with no misfire. (like switch #2 and #4 injectors for example) if the misfire moves to cyl 2, you know the injector is at fault.

littlejose

• 40 Answers
• Posted on Oct 18, 2012

SOURCE: Fuel Pump replaced ran Fine stalls her and there?

Sounds like rebuilt part may have internal problems. Consider replacing with different manufacturer brand or OEM.

SOURCE: 2000 blazer will not start did a manifold gasket job, replaced plugs, wires, distributor cap,new fuel filter. Cranked and ran really good for 2 days then will not crank

Check you starter, maybe you have a loose connection. Try to give direct power to the starter and see what's happening. I nothing happens, you have a bad starter.