I have a 04 f350 4x4. It hesitates and Boggs out under heavy acceleration. It gets poor fuel mileage and when you shut it off you can smell fuel when it's hot. Can't see any leaks. Anyone have any ideas.

How many miles are on it?

It has 246457kms on it.

How many miles are on it?
It has 246257kms on it.

Forgot to ask... any check engine or service engine codes showing? Do you have a code scanner to see if the computer has any codes stored.

Forgot to ask...any check engine or service engine codes showing? Do you have a code scanner to see if the computer has any codes stored.
I do have a code reader and no codes stored.