my blazer dosnt start sometimes after its been drivin for awile .When i first got it it wouldnt start without starter fluid so i replaced the fuel pump,screen&filter then it worked good for a couple weeks now it starts fine with cold engin when it wont start i can get it to start with starter fluid or let it cool fuel pump pressere stays at
55# at start then 50# running mecanic thinks its injecters but i dont? anybody have any suggestions TIA