bameeri

no, but when i turn the heat up to over 80, it goes away, then i turn the heat back down to 66. the noise goes away until i turn the car off, then the next morning its back, so i turn the heat back up to 80 and so goes the story, i guess i need to take it to the dealer....

i think i found an answer to my problem, here it is: Swishing Water Noise??? -------------------------------------------------------------------------------- I am having a strange problem, which is occuring after I went to my 30,000 mile service at the Lexus dealer: When I drive off, you can hear some kind of "swishing" water sound from behind the dash, as if water or SOME liquid is transferring itself to a different location. And it's kind of loud too, so noticeable because the Lex is such a quiet car. I'm about to take it back to the dealer, but I was wondering if any of you have had a similar strange problem such as this. Actually, I faintly remember reading a thread awhile back about some issue similar to this one, but I couldn't find it. I really don't want Lexus to tear apart my car to find it either. If they can't pinpoint it quite easily, I'm going to grow worried that they'll want to do some major prying behind the dash or in the engine bay, on a search mission. I only hear it when I am pulling off, and sometimes when I am coming to a stop. It almost sounds like a screw is loose and run amok, but it sounds more like liquid or even sand/dirt that is changing positions everytime I pull off. Hmmmmmmmmmmmmm........ KevinGS View Public Profile Send a private message to KevinGS Find More Posts by KevinGS Add KevinGS to Your Buddy List 04-16-05, 08:58 AM #2 T.L.W. Ancient Thread Bumper Join Date: Dec 2003 Location: its all about it Posts: 8,734 -------------------------------------------------------------------------------- lol this happened to me too let me find the thread here ya go i hope it the same thing http://www.clublexus.com/forums/sho...highlight=water __________________ the will to WIN T.L.W. View Public Profile Send a private message to T.L.W. Find More Posts by T.L.W. Add T.L.W. to Your Buddy List 04-16-05, 09:14 AM #3 KevinGS Pole Position Join Date: Oct 2004 Location: Maryland Posts: 204 -------------------------------------------------------------------------------- Thanks a ton, TLW, for finding your thread. So let me get this straight: You did exactly as Sal said in your thread...taking off radiator cap, capped off the coolant, started the engine (with radiator cap off), let car heat up 'til cooling fan kicked in, turned the heat up, let the fan cycle one more time (with no coolant added), tightened the cap (with car still running)...and whalaaaaaaaaahhh! It was fixed?!? WOW! Or do you think it's just best to have the system completely flushed out and drained? KevinGS View Public Profile Send a private message to KevinGS Find More Posts by KevinGS Add KevinGS to Your Buddy List 04-16-05, 01:16 PM #4 BkLexZ Pole Position Join Date: Sep 2002 Location: Brooklyn NewYork Posts: 243 -------------------------------------------------------------------------------- I tried that before and no luck. Still hear that damn water behind the dash. __________________ 99 GS 300 Silver/Black TTE Rear Spoiler 17" Chrome GS rims BkLexZ View Public Profile Send a private message to BkLexZ Find More Posts by BkLexZ Add BkLexZ to Your Buddy List 04-16-05, 01:38 PM #5 T.L.W. Ancient Thread Bumper Join Date: Dec 2003 Location: its all about it Posts: 8,734 -------------------------------------------------------------------------------- i drained everything out but's thats only becuase i was working on the engine __________________ the will to WIN T.L.W. View Public Profile Send a private message to T.L.W. Find More Posts by T.L.W. Add T.L.W. to Your Buddy List 04-16-05, 08:05 PM #6 TAMR_GUS98 Pole Position Join Date: Sep 2004 Location: NorCal Posts: 343 Air Bubble. -------------------------------------------------------------------------------- When the dealer did your 30k, they drained the coolant like they were supposed to but did not fill the coolant properly trapping air in your heater core. Take it back to them and explain that this noise started after the 30k service. They should know exactly what to do because it is a well known problem. Good Luck, Will __________________ "PRAISE THE LOWERED" TAMR_GUS98 View Public Profile Send a private message to TAMR_GUS98 Find More Posts by TAMR_GUS98 Add TAMR_GUS98 to Your Buddy List 04-17-05, 09:28 AM #7 salimshah Lead Lap Join Date: Apr 2001 Location: Austin, TX Posts: 620 -------------------------------------------------------------------------------- Quote: Originally Posted by BkLexZ I tried that before and no luck. Still hear that damn water behind the dash. Out of curiosity, did you turn-up the heat (cabin temp HOT), else the coolant inside the core, remains trapped along with the the air bubbles. By the way, there can be other sources of water noise. Salim salimshah View Public Profile Send a private message to salimshah Find More Posts by salimshah Add salimshah to Your Buddy List 04-17-05, 10:03 AM #8 KevinGS Pole Position Join Date: Oct 2004 Location: Maryland Posts: 204 -------------------------------------------------------------------------------- Thanks, TLW and Sal. I believe it has worked. But I will let you know later this week when I drive the car more. I heard it ever so slightly one time afterwards, but not the full "rushing water sound" since I did Sal's procedure. It took a while for that damn fan to kick in though, like 25 mins. And then it took another 20 mins for it to cycle again with the heat on. But it was worth it. Question: Once the fan cycles and you turn the heat on, do you use the Auto mode which turns the A/C on, or are you supposed to turn the heat on without the A/C condensor on? Just curious. I turned it on using Auto which kicked the condensor on as well of course. Eventually, 15 minutes in, I turned the A/C condensor off, and left only the heat on. I still think it worked but want to know the correct procedure for future reference. Again, thanks a TON! KevinGS View Public Profile Send a private message to KevinGS Find More Posts by KevinGS Add KevinGS to Your Buddy List 04-17-05, 10:09 AM #9 SOFIA Driver Join Date: Sep 2004 Location: International Posts: 192 -------------------------------------------------------------------------------- i have the same problem!! they fix it and it comes back after 1month! __________________ SOFIA View Public Profile Send a private message to SOFIA Find More Posts by SOFIA Add SOFIA to Your Buddy List 04-17-05, 07:07 PM #10 salimshah Lead Lap Join Date: Apr 2001 Location: Austin, TX Posts: 620 -------------------------------------------------------------------------------- Boring details ... Yes you have been warned Complete water circuit has two choke points, thermostat and heat exchanger (hot air supply to the cab). The key is to make them fully open. Heat exchanger is controlled by cabin temprature set point. The cooling fan only comes on after the thermostat is open, that is why the we wait for the fan to kick-on. There are other indicators as well (if you can safely look inside the radiator, you will notice a sudden surge in water circulation, indicating the thermostat is open). So why do it twice? Just for reassurance. Auto climate control contributes nothing as the a/c compressor clicking on would be at lower cabin temprature. Unless defrost is slected which should increase engine load and may be contribute more to the heating of the coolant. In any case, it takes a while to heat up the coolant when the cabin heater is on (which cools the coolant). That is why they say that if the engine over-heats, turn on the cabin heater. Word of Advice: If your overflow reservoir does not have coolant above "min" there is a chance that your coolant circuit will suck in AIR. You will be plagued by the bubble trouble. Salim. salimshah View Public Profile Send a private message to salimshah Find More Posts by salimshah Add salimshah to Your Buddy List 04-17-05, 08:32 PM #11 KevinGS Pole Position Join Date: Oct 2004 Location: Maryland Posts: 204 -------------------------------------------------------------------------------- Quote: Originally Posted by salimshah Boring details ... Yes you have been warned Complete water circuit has two choke points, thermostat and heat exchanger (hot air supply to the cab). The key is to make them fully open. Heat exchanger is controlled by cabin temprature set point. The cooling fan only comes on after the thermostat is open, that is why the we wait for the fan to kick-on. There are other indicators as well (if you can safely look inside the radiator, you will notice a sudden surge in water circulation, indicating the thermostat is open). So why do it twice? Just for reassurance. Auto climate control contributes nothing as the a/c compressor clicking on would be at lower cabin temprature. Unless defrost is slected which should increase engine load and may be contribute more to the heating of the coolant. In any case, it takes a while to heat up the coolant when the cabin heater is on (which cools the coolant). That is why they say that if the engine over-heats, turn on the cabin heater. Word of Advice: If your overflow reservoir does not have coolant above "min" there is a chance that your coolant circuit will suck in AIR. You will be plagued by the bubble trouble. Salim. Thank you, THANK you, THANK YOU... for all those boring details. I think I understand now. And I never have checked my reservoir, so it may be low. When adding coolant, can you add regular green-ish anti-freeze, or do you have to add some special Lexus-brand (reddish?) anti-freeze? Sal, thanks for all the info. Those details have brought me full circle. KevinGS View Public Profile Send a private message to KevinGS Find More Posts by KevinGS Add KevinGS to Your Buddy List 04-17-05, 08:44 PM #12 corkycal Lead Lap Join Date: Jul 2004 Location: California Posts: 435 -------------------------------------------------------------------------------- you should be using the same anti-freeze for the whole system, toyota long life or extra long life. don't mix your anti-freeze with the green stuff unless that is what you used in the first place. corkycal View Public Profile Send a private message to corkycal Find More Posts by corkycal Add corkycal to Your Buddy List 04-18-05, 07:39 AM #13 corkycal Lead Lap Join Date: Jul 2004 Location: California Posts: 435 -------------------------------------------------------------------------------- i have a question, Does our GS have an air bleeder valve to take out air from the system? Or, to take air out of our system, do as Salim described? corkycal View Public Profile Send a private message to corkycal Find More Posts by corkycal Add corkycal to Your Buddy List 04-18-05, 07:44 AM #14 chuckb Lexus Champion Join Date: Aug 2004 Location: Florida Posts: 2,664 -------------------------------------------------------------------------------- Quote: Does our GS have an air bleeder valve to take out air from the system? yes, I think it's near T stat......... __________________

i have the same problem but with a 2001 gs300, its really annoying, did you have any luck fixing yours

i have a 2001 gs300 with nav and i noticed that when i turn the key to the on position or start the car, there is a strange "puttering" noise comming from behind the nav system. I opend the glove compartment and i can clearly hear the noise comming from behind the nav system. its not the cd changer, i am thinkg it has someting to do with the hvac control, does anyone have any idea or similar experience. thanks a bunch for any advice. Bill

My check engine light does not work when i turn the key on and i have replaced the bulb so that is not the problem, the check enging light is suppose to turn on and then go off after the car starts if all is ok. Does anyone have any idea what is wrong? Thanks

Thanks for the Tip!

Does anyone know how to replace the check enging lamp on a 2001 gs300? Thanks