Water flowing/bubbling sound in dash? Coolant DIY?
#1
Rookie
Thread Starter
Join Date: Jun 2002
Location: CA
Posts: 97
Likes: 0
Received 0 Likes
on
0 Posts
![Default](https://www.clublexus.com/forums/images/icons/icon1.gif)
Hi,
My 98 GS is turning 100K and still running strong. However recently I hear the bubbling sound from the dash area AGAIN. temp gauge alway stay in the middle.
This was happenned couple years ago and was fixed under extended warranty. according to the dealer, all they did was added coolent. Obviously all my warranty are expired now.
my question is there any DIY to add coolant and bleed the cooling system? I searched but got mixed infomation. basically I got 2 version.
with the car running
1. have the radiator cap off, then turn on the car with FULL AC and put the temp control to the hottest.
2. watching all the bubble coming out from the top of the radiator, and after no bubble, add coolant until it top.
Should I repeat this again after the car cool down to bleed as much air out as possible?
or
with the car off
1, there should be a bleeding plug, take the plug off and add coolant from the radiator.
2. wait until coolant going out from the bleeding plug, then put the bleeding plug back
am I understanding correct? which way should I go?
I will just get the mixed coolant from toyota. it there only one kind of coolant for both lexus and toyota? or I need to mention which type of coolant?
thanks.
My 98 GS is turning 100K and still running strong. However recently I hear the bubbling sound from the dash area AGAIN. temp gauge alway stay in the middle.
This was happenned couple years ago and was fixed under extended warranty. according to the dealer, all they did was added coolent. Obviously all my warranty are expired now.
my question is there any DIY to add coolant and bleed the cooling system? I searched but got mixed infomation. basically I got 2 version.
with the car running
1. have the radiator cap off, then turn on the car with FULL AC and put the temp control to the hottest.
2. watching all the bubble coming out from the top of the radiator, and after no bubble, add coolant until it top.
Should I repeat this again after the car cool down to bleed as much air out as possible?
or
with the car off
1, there should be a bleeding plug, take the plug off and add coolant from the radiator.
2. wait until coolant going out from the bleeding plug, then put the bleeding plug back
am I understanding correct? which way should I go?
I will just get the mixed coolant from toyota. it there only one kind of coolant for both lexus and toyota? or I need to mention which type of coolant?
thanks.
#2
Lexus Champion
iTrader: (20)
![Default](https://www.clublexus.com/forums/images/icons/icon1.gif)
If you are talking about draining and filling the coolant from the radiator is very easy.
1. jack the car up evenly (not necessary but you will get more of the coolant out, might work better if the front is a little lower than rear)
2. take off the plastic cover underneath (10mm screws)
3. the radiator has a white plastic screw thing thats connected to a plastic hose.
4. drain coolant to a container (and dispose of properly)
5. close white plastic screw thing
6. fill with toyota/lexus coolant (red)
7. put back on the cover from underneath
- after running the engine for a little while you might need to top off the coolant
- also check to see that you have some in your overflow container, if not add some
1. jack the car up evenly (not necessary but you will get more of the coolant out, might work better if the front is a little lower than rear)
2. take off the plastic cover underneath (10mm screws)
3. the radiator has a white plastic screw thing thats connected to a plastic hose.
4. drain coolant to a container (and dispose of properly)
5. close white plastic screw thing
6. fill with toyota/lexus coolant (red)
7. put back on the cover from underneath
- after running the engine for a little while you might need to top off the coolant
- also check to see that you have some in your overflow container, if not add some
#3
Lexus Champion
iTrader: (1)
Join Date: May 2004
Location: Arizona
Posts: 2,673
Likes: 0
Received 0 Likes
on
0 Posts
![Thumbs up](https://www.clublexus.com/forums/images/icons/icon14.gif)
If you are talking about draining and filling the coolant from the radiator is very easy.
1. jack the car up evenly (not necessary but you will get more of the coolant out, might work better if the front is a little lower than rear)
2. take off the plastic cover underneath (10mm screws)
3. the radiator has a white plastic screw thing thats connected to a plastic hose.
4. drain coolant to a container (and dispose of properly)
5. close white plastic screw thing
6. fill with toyota/lexus coolant (red)
7. put back on the cover from underneath
- after running the engine for a little while you might need to top off the coolant
- also check to see that you have some in your overflow container, if not add some
1. jack the car up evenly (not necessary but you will get more of the coolant out, might work better if the front is a little lower than rear)
2. take off the plastic cover underneath (10mm screws)
3. the radiator has a white plastic screw thing thats connected to a plastic hose.
4. drain coolant to a container (and dispose of properly)
5. close white plastic screw thing
6. fill with toyota/lexus coolant (red)
7. put back on the cover from underneath
- after running the engine for a little while you might need to top off the coolant
- also check to see that you have some in your overflow container, if not add some
Oh, and the "white plastic screw thing" is called a petcock.
![Wink](https://www.clublexus.com/forums/images/smilies/wink.gif)
Big Mack
#6
Lexus Champion
iTrader: (1)
Join Date: May 2004
Location: Arizona
Posts: 2,673
Likes: 0
Received 0 Likes
on
0 Posts
![Cool](https://www.clublexus.com/forums/images/icons/icon6.gif)
![Wink](https://www.clublexus.com/forums/images/smilies/wink.gif)
Big Mack
Trending Topics
#8
Lexus Champion
iTrader: (1)
Join Date: May 2004
Location: Arizona
Posts: 2,673
Likes: 0
Received 0 Likes
on
0 Posts
![Wink](https://www.clublexus.com/forums/images/icons/icon12.gif)
Big Mack
#9
Lexus Test Driver
iTrader: (22)
![Default](https://www.clublexus.com/forums/images/icons/icon1.gif)
Sounds like your low on coolant. IMO, you can just top of the coolant from the radiator with the car off. Then do not use heat mode, turn it max cold. Use the a/c the whole day on recirculate mode always. And about 2-3 days it should go away. But remmeber don't use fresh air mode. GL! BTW, you don't have to bleed when adding coolant.
Thread
Thread Starter
Forum
Replies
Last Post
Ron81
RX - 2nd Gen (2004-2009)
8
06-25-17 04:33 PM