On cold starts, my truck misfires while turning over and kicks back on the starter. When it finally starts, it backfires, skips, runs rough, and won't run at low speeds just as if it's out of time. No engine lights, so I don't think it's a fuel problem, I can hear the pump running, and smell gas around the engine as if it were flooding. i have replaced coolant temp sensor, intake air temp sensor, coil, cap, rotor. I have also hooked a battery charger to the system to enhance amps/volts. The engine begins to run fine shortly after the thermostat opens upon warmup. It runs great until the next cold startup. The truck is 95 Ram 1500 5.2L. Any and all help will be appreciated.

 

Welcome to DF.

Done any work to it lately? Checked your plenum??