My truck has recently been struggling to run when i start it when its cold. Let it warm up and it would be find. stalled out twice but was able to start back up on my way back home. Stalled out again down the street so i just parked it there for the night. Next morning i tried to start it and it started fine. It was back firing alot when it would die, it would kind of surge and stumble in 1st or 2nd and then just die.
Will a fuel filter, Fuel pump, and injector cleaner with a fresh tank of gas clear it all up?
Thanks for reading, first post let me know if i posted wrong or in wrong section
What year Ranger, assume 1986 and up since injectors are mentioned?
When you turn on the key you can hear the fuel pump run for 2 seconds, it is not quiet, HUMMMM can be heard in the cab, turn down the radio.
Repeat the key on and off as much as needed so you know the sound of the fuel pump working, it will only run for 2 seconds to Prime the system, but it will do that EACH TIME the key is turned on
Now see if NOT hearing the fuel pump come on corresponds to the No Start.
There is a Fuel Pump Relay that the computer controls, so the computer turns on the fuel pump for those 2 seconds then turns it off.
After engine starts computer will turn on fuel pump full time
Relays can go bad, and can OPEN if you hit a bump, shouldn't but can, when they are failing
Tell us the year and we can tell you where that relay is
Pre-1994 Ranger used a separate Spark module, while its unlikely this is the problem it could be.
If you turn on the key and HEAR the fuel pump, but have the No Start then could be a spark issue
Stalling while driving is usually not a fuel pump issue, more likely to be electrical issue, corroded or failing connections.
If fuel pump itself fails then it usually won't restart, its done.
If stalling occurs at a regular interval then could be a dirty fuel filter, you run out of gas until filter can pass more gas thru.
They are only $10 and need to be changed every 5 years so no brainer to just change it.