The fuel filter is part of the pump module in the fuel tank on a PT Cruiser.
The fuel pump is in the fuel tank. You have to remove the fuel tank to access.
A 2005 PT Cruiser does have a fuel pump relay. They have a fuel pump relay rather than a fuel pump switch. The fuel pump relay is located in the fuse box.
Belt is probably not timed correctly.
Check the exhaust for oil on it. A leak is most likely blowing onto the exhaust and burning off.
DOT 3
No, the target wheels for the cam and crankshaft sensors are different.
Because that is its job and that is what it will do.
Any major brand 5w30.Any major brand 5w30.
Bottom rear of the oil pan
check your coolant level.
It is on the very bottom of the engine.