Gurgling frm dash help

[fl440]

Hi All,

Hoping someone can help, have a 2001 impreza ej15 engine, had a 100000 km service, cambelt waterpump etc,

Since the service i keep getting a gurlging water sound on a cold start and also once hot if it idles for a little bit!

Any ideas on how to fix, lots of people just say oh its normal for a subaru, but it never used to!

Look forward to your help

Cheers
Mark

[Anub1s]

Since the waterpump was changed out, I'm thinking there is likely some air in the system. Could be as easy as just needing to "burp" it.

[fl440]

Ok sounds good,
How do i burp the system?

Cheers mark

[Anub1s]

Basically, you let the engine idle until it warms up (start with a COLD engine) with the radiator cap off, and the heater on full. This will get all of the coolant circulating through the system. Be sure to squeeze the upper radiator hose every once in a while, to help any air along into the radiator and thereby the filler to escape.

Let the car get up to temperature and let the fans cycle a couple of times, fill the radiator up if it's gone down at all, put the cap back on, and you're done. Be aware that a mess can be made with coolant coming out of that filler, when air escapes it can bring some fluid with it, so be ready with a towel or two.

[jd92677]

Basically, you let the engine idle until it warms up (start with a COLD engine) with the radiator cap off, and the heater on full. This will get all of the coolant circulating through the system. Be sure to squeeze the upper radiator hose every once in a while, to help any air along into the radiator and thereby the filler to escape.

Let the car get up to temperature and let the fans cycle a couple of times, fill the radiator up if it's gone down at all, put the cap back on, and you're done. Be aware that a mess can be made with coolant coming out of that filler, when air escapes it can bring some fluid with it, so be ready with a towel or two.

To add... an incline helps too. If you jack up the front end, the air will travel to the highest point, which you want to make sure is the radiator.

[hunter20ga]

I would also add that antifreeze is "sweet" and very attractive to dogs and cats...also it is deadly, so if you spill any while doing this task, you'll want tok clean it up well.

[SD_GR]

Very good to see someone adding the safety info!

If the worst should happen, for all mammals it's a rush-to-hospital event (humans too). For dogs at least, if there is any uncertainty about ingestion or not, call ahead to an emergency vet as there is a specific test that can be done.

[oguitar]

I think anti-freeze is now required to have a bittering agent so it does not taste sweet anymore.

[SD_GR]

Honda "blue" 100K coolant still tastes like classic antifreeze, sorry to say. I don't know about other brands.

[fl440]

Ive been careful to clean up thanks guys!

Ive tried as you guys have suggested and im still having the problens, head gasket checks ok, i juat dont seem to be able to get this bit of air out! Argh the frustration! Evidently some people have said there is some sort of modification to the plumbing but im unsure of this!

Anyway if anyone can throw some more light on this most appreciated!

Cheers again

Mark

[oguitar]

Pull the glove box out and go for a drive. Have a buddy listen to the heater core when you start hearing the gurgling sound. Look for leaks while you are in there.

[d_Ziggy_2000]

So I'm curious.. How do you guys know that the anti freeze is sweet? And how do you know its bitter..? Please tell me you didn't taste it!