I have a very nice 91 F150 with only 90,000 original miles. Two years ago i replaced the side cover and valve cover gaskets and it has not run right since. No power, stalls, etc. I've looked hard at everything i touched and followed peoples suggestions but nothing is working
When i get some free time (not often) i come back to it and keep trying to find the problem. I've looked at everything. Posted on various forum and facebook groups. People just throw out random suggestions.
I've looked at timing and plug wires, all the vac lines, I changed the fuel pressure regulator.
I've had not luck getting the early OBD to work.
At this point I am looking for a complete breakdown of the EFI system and how it works. I see vac lines going all over and I assume a lot of them are not critical to engine function. I want to understand what all the critical components are and what they do.
I am no longer focused on that i might have touched. I'm just to go throgh the whole system, starting with fuel pressure.
I would be grateful for any suggestions.
When i get some free time (not often) i come back to it and keep trying to find the problem. I've looked at everything. Posted on various forum and facebook groups. People just throw out random suggestions.
I've looked at timing and plug wires, all the vac lines, I changed the fuel pressure regulator.
I've had not luck getting the early OBD to work.
At this point I am looking for a complete breakdown of the EFI system and how it works. I see vac lines going all over and I assume a lot of them are not critical to engine function. I want to understand what all the critical components are and what they do.
I am no longer focused on that i might have touched. I'm just to go throgh the whole system, starting with fuel pressure.
I would be grateful for any suggestions.