Durania Posted April 17, 2007 Share Posted April 17, 2007 At startup after a few preliminary revs of the engine I hear the sound of coolant rushing through the heater core I assume. Is this a normal sound that most experience or a sign that I need to flush out my heater core? Quote Link to comment Share on other sites More sharing options...
wesley willis Posted April 17, 2007 Share Posted April 17, 2007 i had that sound in one of my loyales..... it needed more of a fix than a flush. the drivers side head was cracked and leaking into the exhaust. the radator held pressure and i would often hear a rushing water sound on start up (and when i turned off the car too). that was on an ea82 though. Quote Link to comment Share on other sites More sharing options...
nipper Posted April 17, 2007 Share Posted April 17, 2007 At the very least check your coolant level. You may ant to replace the radiator cap since you may be sucking some air in. How old is the coolant. May not be a bad idea to do aflush if its over two years old. nipper Quote Link to comment Share on other sites More sharing options...
Durania Posted April 17, 2007 Author Share Posted April 17, 2007 I dont hear it at shut-down, it only last for about 4 seconds at startup. My EA81 hatch did the same thing and the motor doesnt get hot or anything. Quote Link to comment Share on other sites More sharing options...
Durania Posted April 17, 2007 Author Share Posted April 17, 2007 Did both hoses, upper heater hose, and thermostat and gasket (Yes, GD I got them from the dealer per your advice). I put new coolant in when I did this work on Saturday. Quote Link to comment Share on other sites More sharing options...
Prospeeder Posted April 17, 2007 Share Posted April 17, 2007 its just air in the heater core, if you dont bleed the system properly it does that, my RX did that and it freaked me out too, but it went away when i drained the system and refilled it on a hill revving the engine. Quote Link to comment Share on other sites More sharing options...
mikeshoup Posted April 17, 2007 Share Posted April 17, 2007 Yup, air in the the coolant. Bleed it somehow. Jack the front end up in the air so the radiator cap is above the heater core, and wait for the car to warm up with the rad cap off. This will push all the air out. Quote Link to comment Share on other sites More sharing options...
Durania Posted April 17, 2007 Author Share Posted April 17, 2007 That will work, thanks fellars. I will try and get around to doing that this weekend, I could always pull onto a parking curb and do it. Maybe I could get one of them pictures like the 4WD guys have and then I could finally fit in. Quote Link to comment Share on other sites More sharing options...
Gloyale Posted April 17, 2007 Share Posted April 17, 2007 I had to backflush my heater core(garden hose trick) before I could get it to bleed properly and have the swooshing go away. A certain amount "slosh" is really common and not ussually a big deal. Look for other symptoms and their causes in the cooling system. Quote Link to comment Share on other sites More sharing options...
Sweet82 Posted April 17, 2007 Share Posted April 17, 2007 I find it kind of a comforting sound. It lets me know I still have antifreeze. It's a similar concept to seeing new and shiny oil stains under my car. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.