Thank you so much for that wealth of information! I never heard of EVAP system. Does that differ from line a return fuel line?
My first two cars were old. One was a 1965 Chevelle and the other was an 81 Silverado. Granted they're older and the chevelle liked to leak some of the excess out (the way I drove it didn't help). I just never encountered that and no one has caught me overfilling my tank years ago.
I do not know fully how my wife's Expedition was treated before, we've had to solve a couple of mysteries when we first got it. Can overfilling tank affect the IAC valve (idle air control)? I've had to replace it and DID NOT enjoy it as it was on the BACK of the motor!
I have noticed at begining of fueling, the pump keeps clicking off. I have not paid attention to different gas stations and how the nozzle runs. If I can hear it really gushing, something must be new and I really have to back it off. I also noticed my 1 Ton Ford Van does the same thing. My Taurus does not. Next time I get gas, I'll pay attention to nozzle depth.
What is your take on the fact that my gas guage isn't quite all the way up? First things first, I'll try backing out the nozzle more (without washing the parking lot down with 89 Octane).
One more question and I'll give your eyes a break. When we bought this truck, it was (is) outfitted with a BBK Cold Air Intake. I think he said something about a "chip" but I disregarded it. For the first six months our "check engine" light kept coming on and it was the same code over and over. ( I don't have my book handy-everyone's sleeping right now). I think it was along the lines of P-171 & 172 whatever... it meant "Bank 1 and Bank 2" running lean (or rich). I replaced several parts including a $150.00 MAF sensor. I also noticed that the hoses kept coming off of the cold air intake and everytime the engine would run at a sloghtly higher RPM almost pulling us through a red light. I fixed those hoses with clamps, they were just pressed onto intake port. After almost one year of this and finally, she started shuddering at highway acceleration. I gave up and took it to a shop. They just got a new system specifically for Ford/Lincoln/Mercury and he hooked his laptop up and we went driving. He looked at the screen and said, "Ohhh, your #1 coil is bad, that cylinder and dropping completely out, not firing." All was fixed and she's ran like a champ ever since, infact, I got a 2 mpg bump, taking mpg into the 20s.
I told you this story to ask you this question:
Does the BBK Cold Air Intake confuse my computer? Everynow and then I feel a little surge to the truck, not as bad as before, but sometimes she feels like she wants to go through the red light. Doesn't happen all the time. I do notice that sometimes it's a little warm(weather wise). Any notions?
THANKS AGAIN for all that knowledge you sent my way.
Take care friend.