There is no pressure whatsoever in the radiator. I can drive for 1 hour and still, no pressure. I can open the radiator cap without fearing it bursting.

WTF is wrong?

The collant is filled all the way to the top. I let the engine run while filling to get rid of all air bubbles, and still, the engines is halfway from overheating. No pressure build up.

WTF?

 

Water pump is toast?

 

Agreed, or there is a bubble at the water pump that is not allowing it to pump fluid. You could go buy the tool to vacuum out the system to try to remove the bubble, burp the system, or flush the system. If all else fails, replace the pump. I personally think the pump is in need of replacement, but that's just a guess.

 

i do have 170,000 miles

 

Either el pumpo or el blockage"o".

 

If you haven't done a timing belt for a while, it would probably be a good idea to do that with the water pump, especially since you are coming up for another change of the belt in 10k miles, assuming it was changed at 90k miles.

 

already did the timing belt, dont know if the place that did it did the waterpump. where is the waterpump located? so i can check to see if it was replaced or the same old one.

could it also be the cap?

i dont know

 

The water pump is driven by the timing belt. How long ago was the timing belt done? If the pump was never replaced, I'm almost certain that that is the problem.

 

You will have to take off your valve cover in order to even begin to get to the water pump. Then ya gotta take off all the belts, which is why they're saying its a good idea to change your timing belt since you already have to take it apart. The water pump is kind of a b*tch to change.

 

The pump itself is easy to change, it's the timing belt mess where the difficulty is. Check the Teg FAQ sticky at the top for the Factory Service Manual download. This will walk you through the process.