02brulegGT Posted April 25, 2007 Share Posted April 25, 2007 hello all, I purchased a used 02 legacy GT a few weeks ago. i noticed that when its very quiet in my car i can hear some fluid trickling through a hose or pipe in the dashboard. not like it's leaking out but just flowing through. when my car is cold, and i rev the engine a little, the trickling gets louder and sounds as if the fluid is moving faster in sync with the engine revs. the sounds is very faint but definitely noticeable does anyone know what this could be? thanks in advance mike Link to comment Share on other sites More sharing options...
Jedi Pimp Posted April 26, 2007 Share Posted April 26, 2007 Check for air in your coolant lines Link to comment Share on other sites More sharing options...
02brulegGT Posted April 26, 2007 Author Share Posted April 26, 2007 you're right on the money. i'm an idiot and didnt check the coolant level. i opened the raditator cold and couldnt even see any fluid ;( there must be tons of air in my coolant lines. flushing and replacing this weekend! Thanks for the tip!!! Link to comment Share on other sites More sharing options...
Vimy101 Posted April 26, 2007 Share Posted April 26, 2007 You're probably hearing the heater core. Top off your coolant with some soft/distilled water in the meantime prior to your flush. Link to comment Share on other sites More sharing options...
b4wantab Posted April 26, 2007 Share Posted April 26, 2007 Check the refill proccedure. Also get the additive from a dealer and make sure the coolant you use is good with AL and Cu. The 02s had head gasket issues so I would recommend the additive. Dealer only unfortunately. If you use coolant not conditioned for AL and Cu it will eat the heater core and plug up the radiator, electrolysis. The proper coolant is common just make sure you ask for the right stuff. (edit; yes distilled water is important also, don't know about soft) There is a refill procedure that I do not have with me. It makes sure there are no air bubbles traped in the engine. The head design has pasages that can trap air. driving around doesn't aways clear the air. Anyone have access to it? Peace, Greg Link to comment Share on other sites More sharing options...
b4wantab Posted April 26, 2007 Share Posted April 26, 2007 Just reread that and it may be unclear. You need coolant conditioned to protect AL and Cu. It has different additives than the old standard coolant for cast iorn blocks. Just read the side of the jug to make sure it is compatable with AL. If you have electrolysis happening it is happening regardless of the coolant. You would know that is short order. Sorry that was unclear. Peace, Greg Link to comment Share on other sites More sharing options...
02brulegGT Posted April 27, 2007 Author Share Posted April 27, 2007 thanks a lot for the help guys. I topped of the coolant with some soft water and the trickling sound is almost gone. i still hear it when i rev the engine a little bit but im sure the air will work itself out. i'm going to head to the subaru dealership and buy their coolant and the additive and flush and replace this weekend. thanks a lot for all of your tips!!!! Link to comment Share on other sites More sharing options...
Vimy101 Posted April 27, 2007 Share Posted April 27, 2007 ^ Distilled is the best way to go but the worse is to add nothing leading to overheating which means severe damage. Soft water will harm nothing if it is only in there for a short time. Link to comment Share on other sites More sharing options...
02brulegGT Posted April 27, 2007 Author Share Posted April 27, 2007 exactly, i just wanted to top it off. i'm going to get some distilled water when i do the full flush. the last thing i wanted to do was put gas station water in it thanks again! Link to comment Share on other sites More sharing options...
Vimy101 Posted April 27, 2007 Share Posted April 27, 2007 ^ In some cases even water from a ditch is better than none. Link to comment Share on other sites More sharing options...
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