after I did oil change and ts not leaking oil

I've had a heavy load in the rear, but I noticed my gas gauge went erratic after I had to break heavily to avoid an accident.

The needle is not giving an accurate gas amount.What can I do to correct this

4.6 liter northstar engîne

gasket.(northstar 4.6 engine) I am the second owner and the car is in beautiful shape. What are my best options for getting another engine and approximately what would it cost to have a used motor installed in my car? Thanks for any help in this matter.

Car jerks when I give it gas

My gas gauge is spinning I cant tell how much gas is in the tank.

What now changed cam sensor getting fuel out of line that has a cable stem in it only sometimes when turning the key on anyone have a suggestion

What could cause this only does it when cold

I can usually turn them on for about 15 minutes and then they kick off and won't turn on again. And my trac on/off button doesn't do anything to help, or anything at all really.

I cannot tell when I need gas

I can't tell accurately when I need gas

The car has no hot air at all I have codes bo419 and bo423 which actuator is this and where is it located thanks

my remote doesnt have the back to it, so i think thats why it isnt working. I even bought a new battery. and the alarm will go off if I dont unlock the driver side door first with the key. and now sometimes the car wont start at all. I went to get a new starter but when i came back to put it in the car I tried to start the car again and it started. So it will not start sometimes and when it doesnt start it stays saying security on the display panel. I went to the dealer to try to get a back or another remote, but they said that they discontinued that remote. Now Im stuck at the library looking up info on the alarm system and what can i do to get home

It is right above the engine cover plate in fron of the drivers front wheel. It is black container with a filter and a cooloing hose runs close to it. There were two filters but the hard plastic had desinagrated, so the shape is unknown.