Hey everyone, this is my first post here, I am having trouble with my truck and would GREATLY appreciate any help.
I have an '03 4.7 which developed a misfire in 4 & 8. Long story short, I had 2 valves replaced and cam followers reattached, and now the engine starts and sounds great with no misfire or codes/CEL, but dies after a few seconds. It will start right back up, but will not stay running regardless of whether the accelerator is pressed. It has 47 psi at the rail, fuel pump turns on, ASD relay clicks, etc. It is acting like a VTSS security cutoff, but there are no security lights on and I have 2 keys and the fob. Also swapped around the relays and pulled/reset fuse 11 & 13, disconnected battery, bought new battery....
Out of ideas...and money! Does anyone have any insight? Hoping it's not a bad ECM.
I have an '03 4.7 which developed a misfire in 4 & 8. Long story short, I had 2 valves replaced and cam followers reattached, and now the engine starts and sounds great with no misfire or codes/CEL, but dies after a few seconds. It will start right back up, but will not stay running regardless of whether the accelerator is pressed. It has 47 psi at the rail, fuel pump turns on, ASD relay clicks, etc. It is acting like a VTSS security cutoff, but there are no security lights on and I have 2 keys and the fob. Also swapped around the relays and pulled/reset fuse 11 & 13, disconnected battery, bought new battery....
Out of ideas...and money! Does anyone have any insight? Hoping it's not a bad ECM.