Hey ya'll, thanks for reading this, i hope i can get some ideas from ya. 1993 Bronco 5.0 auto. Shortly after purchasing, the truck developed a hesitation from just off idle to about 2000 RPM. i have replaced the plugs, wires, cap, rotor, coil, pick-up coil, tps, iac valve, egr valve, O2 sensor, coolant temp sensor, checkd the timing(10 BTDC) and the vacuum(18 Hg). A shop cleaned and flow tested the injectors, and pump- all good. it seems to only act up once it's warm, and under all load conditions. Any ideas?