So, the pump has no issue filling the tank, so I dont believe I have an evap canister issue.
When the car is warmed up, all the way to regular operating temp, and the tank is filled, after the car is turned off the first time and restarted, it runs very very rough and dies, almost as if its being choked out. This only happens from a warm shutdown and restart. If the car is cold with a full tank, no issues. Likewise, if I fill the tank with the engine running, and burn off a decent amount of gas it wont do it either. I replaced the evap scavenge solenoid with no luck. The problem has also gotten worse, and I mean the car used to just sputter a bit, not it wont even run. Any other time, the engine runs like a TOP... 130k miles, police interceptor very lightly used detective vehicle.
Thanks!
The thing to do is to totally shut off the evap system to the engine. Seal it off. That way you eliminate that as a source. if the engine still sputters then suspect injector bleed into the engine. You would see that if you put an gauge in the tap of the injector rail. When you stop the engine...it should hold and gauge reading should slowly creep down...if it goes down too fast then one of your injectors is not shutting off. Just some simple tests to eliminate the usual suspects.
Wow, thats awesome advice, I will try that ASAP. So, as a side note, when I got the car, it had a check engine light that ended up being a fuel rail pressure sensor. I replaced the sensor and everything was fine, but would that be potentially related? I feel like it has to be something vacuum/suction related, because it only happens when the tank is full. So my thought is that all the air is forced out of the tank by the liquid. But I will definitely be trying the fuel rail pressure as soon as I get a chance. Thanks!
I now remember that the fords went to a "Returnless fuel system" in the 2000s or something. Normally till then the fuel is pumped from the tank..goes to the engine fuel injectors and excess fuel returns back into the tank via the return tube. Round and round. But this system has no return line. The fuel is pumped from the tank and then to the engine and then expended via the injectors, The PCM controls the fuel pump pressure as in this simple definition I got:
With an electronic returnless system, the PCM can now raise or lower fuel pressure at will. This system consists of a rotary vane fuel pump (same as before), fuel line (pressure only), fuel rail pressure sensor (that also contains a temperature sensor), fuel pump control module and, of course, the PCM.
But your earlier code error MAY be related and maybe not...have to check out the simple stuff and go from there.
So I swapped out the Evap Canister Vent Solenoid, and it seems to have fixed the problem, for now. I'll report back if it reoccurs, but I appreciate the advice!
THATS Indeed Good news....