Hey can anyone help I have leak but don't know what part I need to buy I think it's missing a seal or bolt it located behind timing belt close to balancer shaft thanks.

 

That almost looks like the "weep" hole for the water pump - I'm old and blind and only spent a few seconds looking at the pic's.

When was the last timing belt "job" done on this car?

 

My father is mechanic he change sensor on the timing belt this past month.

 

The sensor behind there is one thing.

Timing belt "jobs" are due every 100K or 7 years. The job consists of - I'm assuming this is a 4 cyl - the timing belt, balance shaft belt and water pump at the very least. Idlers and seals should be inspected and replaced as needed.

 

And if he is a mechanic and has been behind the cover before, he could confirm my guess that that is the water pump weep hole.