ranger has trouble idling and driving til warm
I have a 1999 xlt 4.0 extended cab auto. I have to turn the key twice to start it after it cools down. It sputters when It starts like it wants to stall and you have to pump the gas to get it going. The only code that pops up is an o2 sensor. I changed plug's wires all my fluid's and fuel filter. No ideas on what it can be. Maybe losing the prime in the fuel line?