recently did a timing belt and water pump change. I dont know what cause this but when i was on the road driving, my temp guage went up and when i parked it, the fuild was gone.

What are some causes that would make radiator fuild to disappear?

 

Either you are burning coolant, or you are leaking it some where. Did the water pump seal ?

 

blown head gasket.. blowin smoke?

 

How much coolant did you lose and how far did you drive before you noticed it being gone. If you lost a bunch of coolant in a short period of time and didn't notice any smoke, a leak is more probable than a blown head gasket. Fill the car back up and run it in the garage, check for leaks.

 

air bubbles in the system

 

how do u burn coolant? im not blowin smoke. did the water n timing change like 6 months ago. What i did notice was when i pulled the car over when it was overheating was that is was making a constant whistling sound, like air is being forced out or something like that. after like 20mins, it stopped that sound. i was missing alot of coolant, maybe like 2 litters.

how can u lose coolant? bad gasket, leaks, and ?????
i dont think its a leak, can it be anything internal like bad rings or something?

 

check your oil cap, see if it has any white milky **** under it

 

Try look at water pump area, maybe a bit leak

 

check where you park your car for puddles on the ground