ticking noise

Hi, A ticking noise is not from pressure building up, it's more likely low oil pressure, leaking exhaust or a worn part inside the engine. An experienced mechanic can listen to this and get a good idea as to where the noise is coming from and then take the appropriate action to diagnose further or make the needed repairs. Before that, what you can do is make sure the oil level is OK, and add oil if it's low. If you need a shop to look at it for you, have a look at some of these: http://repairpal.com/mitsubishi-repair-in-houston-texas