It leaks somewhere in by the engine. Any ideas on what it could be and how to fix it

 

There are a million possibilities. You are going to have to look.. We can help but my majic 8 ball is on the fritz lol

 

+1 on what ^he said...

Leaks what?

Diesel
Coolant
Oil
Transmission fluid
water
windshield washer fluid

 

+2, your being way too vague man. I assume its deisel fuel, at least thats how I read your title. Everybody on here will be happy to help based on your educated guesses from you searching (use the search option) for what could be leaking; use a key word or phrase search such as, "leak in the valley" "diesel in the valley" or any derivative of fuel or diesel in the valley.. This is the most common place..