My rig is a 1991 with the 3FE.
I just finished replacing the head gasket. I put everything back together, and now I can't get it to start. Whenever the ignition is on, the fuel pump runs constantly instead of just for a moment to prime the lines. It will run as long as I leave the key on - I've let it go for several minutes. There is a loud hissing noise coming from somewhere in the vicinity of the fuel rail. Using a stethoscope, it seems loudest at the FPR. I'm guessing this noise is just fuel running through the lines - but if the engine isn't running, where is the fuel going? There are no leaks, as far as I can tell. If I try to start the engine it will crank and fire, but it won't start - it just sputters.
I have taken the fuel rail back out, cleaned it thoroughly, cleaned the injectors, and put new o-rings and seals on the injectors. I have double and triple checked all my fuel, vacuum and electrical connections. (Doesn't mean I still couldn't have missed something, but I've gone over everything I can think of multiple times.) I had just replaced the fuel filter before the head gasket blew.
I tried looking for a fuel pump relay to see if it was stuck, but apparently the 3FE doesn't have one?
Anyone have any ideas? I'd appreciate any suggestions, or any insight into the details of how the fuel system is controlled.
I just finished replacing the head gasket. I put everything back together, and now I can't get it to start. Whenever the ignition is on, the fuel pump runs constantly instead of just for a moment to prime the lines. It will run as long as I leave the key on - I've let it go for several minutes. There is a loud hissing noise coming from somewhere in the vicinity of the fuel rail. Using a stethoscope, it seems loudest at the FPR. I'm guessing this noise is just fuel running through the lines - but if the engine isn't running, where is the fuel going? There are no leaks, as far as I can tell. If I try to start the engine it will crank and fire, but it won't start - it just sputters.
I have taken the fuel rail back out, cleaned it thoroughly, cleaned the injectors, and put new o-rings and seals on the injectors. I have double and triple checked all my fuel, vacuum and electrical connections. (Doesn't mean I still couldn't have missed something, but I've gone over everything I can think of multiple times.) I had just replaced the fuel filter before the head gasket blew.
I tried looking for a fuel pump relay to see if it was stuck, but apparently the 3FE doesn't have one?
Anyone have any ideas? I'd appreciate any suggestions, or any insight into the details of how the fuel system is controlled.