After months of trouble shooting my 2001 4 door blazer, it's fixed. It would crank over , but not start unless jumped by another car several times. It finnally would run rough and stall. I tried a new Mas Air Flow didn't work , and after reading this forum, figured to get the fuel pump changed. It was the fuel pump !!! Only putting out like 27 lbs or pressure. I think it needed around 60 if i remmeber right ? I'm not a mechanic, but I am releaved that this problem is behind me . So yesterday I cleaned it out really good and am back on the road. Thanks for all yalls help..

 

congrats on getting your truck back on the road.