Hi I am kinda new to here. I just got my blazer in July. I hope I am posting in the right forum. Yesterday I was sitting at a red light, when I pulled away my blazer started to run really rough in a few seconds it died. Cranks but no start. I got it towed home. Turn key, dash lights up, fuel pump comes on, changed fuel filter. Friend of mine sprayed starter fluid, still no start. I was wondering what to check next. I would appreciate any help. Thanks