TechyInAZ

So i've seen threads on this in the past, but there seems to be multiple reasons why other RX 300s sounds like their gurgling anyways...

My RX 300 has had a small gurgling noise (almost sounds like bubbles), coming from the center/right part of the rear part of the dashboard. Any clue as to what is causing it? I'm assuming it's air bubbles in the cooling system.

I should also add that the gurgling varies in frequency so no it does not sound like a ticking timer like others have expereinced.

salimshah

Is this a new problem or did it start after a procedure? Also check if the noise is from engine bay. With engine cold, open the radiator cap and check the coolant level.

Salim

sktn77a

iTrader: (2)

I have a "gurgling"-type noise coming from the dash (doesn't sounds like a liquid gurgling, though) which sounds more like an AC damper continuously opening and closing (?). It's a coarse, worn-out plastic bearing-type noise.

????????????????

salimshah

That would be more like mechanical wheel/gear making noise when they spin. [reminds me of those critter trying to climb up on a wheel, which keeps on turning under their weight]. To eliminate that as a source, you can move out of the auto-mode [A/c] and set the mode to any position of your liking. IN auto mode the ducts are perpetually [as it seems] move to get you the most sought after conditioned air in circulation.

Salim

TechyInAZ

I still got to check the coolant temp.

So I followed your advise salim, and when i switch off auto mode the noises go down drastically but aren't completely gone. If I max out the heater all noise is gone completely.

salimshah

We are talking level right?

Salim

ukrkoz

I think we are talking air bubbles in coolant. That's the only thing I know that can gurgle.

TechyInAZ

Yeah sorry salim, i know you were replying to another person, but i did what you said and it worked.

I should also update that the gurgling is now completely gone except for some rare exceptions, seems like driving the car more fixed it, so odd.