need help...very new to the forum
 

Hello all,

I just bought 88 supra and need some help.
whenever I make a turn or get out from the start, I can hear water moving around. Couldn't figure out from where yet because I just picked up the car and it's already dark..:D
any idea where the water can be and how to drain it out....??? so that i do not need to spend much time to look around and get more time to play with my new car..
thanks a lot in advance...

Are you speaking of a water fall or rain stick from the mall type of sound?

If that seems close too what you're hearing. It means you have air in your coolant system.

What I would do..., If it were me. So remember these are opinions and there is a reason they are free.

I would drain the coolant system completely. I would even jack the arse end up and get it drained well. Do this with the radiator drain plug open and flowing.

Cork it back up. Fill your overflow up to the right level or your your low coolant light or "birdcage light" will come on and not go off. The engine needs coolant in there to pull back into the system.

If you do this right and you still have issues with the waterfall sound.

Come back and tell us. This..., then. May lead to burping the system wich could a pre-curser to BHG.

yap..it's like water fall or water moving from one side to other...so you are suggesting to get a coolant flush?...i though some water trapped underneath and just need to drain out :rolleyes2....:D
how can that relate to BHG? I just drove back 3-4 hr without any overheat issue....as my username suggest, i am so dump to car mechanic....please bare with me...

It may not relate to the hg. You may just have air in there.

But something I have learned quite quickley after my build is this.

All the behaviors you are speaking of were for my car, pre-cursers to a BHG.

If your engine is tight. The cooling system really doesn't need to be burped and if you hear a small water fall noise.

It works it self out on it's own. I no longer have to baby sit it or watch for bubbles or any of that burping noise.

It's good that you aren't having any over heating issues.

Are you having any fluid or oil leaks from the engine.

Start with a complete coolant system flush. Top it off fully.
Put the front end up on ramps while you do this.

This will help keep the air bubble at a higher point in the engine.

Water sound
 

Maybe in the back under the spare?

Yeah, if it isn't in the cooling system then it is probably back by the spare. I actually had that problem and it took forever to find the leak. In my case water was leaking in a poorly designed air vent behind the molding between the two side windows. then it would condense and soak my back seats and trunk. good luck

yesterday..I looked at the space where spare wheel is placed and there's no water there too...back seats are fine too...should i take out the spare wheel and look under it?..
i am still yet to do coolant flush...

You want to make sure you check the easy parts first... I don't reccomend jumping straight to draining the coolant... In fact, I don't have any idea what draining/flushing the coolant would accomplish if you do indeed have an airlock in your system.

Try what the others have suggested: underneath the spare tire as there is a slight recess below it (although if you already lifted the cover I would have thought you'd spot it) Another place that water tends to collect on these cars is in the lower rear quarter panels. There is two access doors on either side of the rear trunk area, Pop these plastic panels out and reach down to see if its wet. If it is, there is a rubber plug on either side...

If you have decided that that noise is comming from the front of the engine I would suggest squeezing your upper and lower rad hoses a couple times.... You can also try parking on a steep hill facing upwards for a short period of time.

As for a blown headgasket, are you going through oil or antifreeze? Is there a milky film under your rad cap, or a frothy white in your oil? When you pop the rad cap (while its cool of course) and have the car idling is there any trace of bubbles?

Where does this post say anything about airlock?

Where does it really say anything that could lead to the spare tire area?

What am I missing? This dude made out like he was experiencing the regular air in system waterfall noise. If that's the case there's a reason to flush. That's so you don't spend the weekend burping the thing. And never quite gettting the bubble.

Obviously I have missed something. Because you guys are talking about something I have never had to do to my supra.:x:

NO NO,

My bad. Jeeez this thread turned I know what you guys are talking about now.

How does flushing the coolant purge air from the coolant system (airlock)?

How does not purging the coolant inhibit your goal?

hi... I could hear the sound of water moving just by reving up while the car is fully stopped....one thing I noted is that the cover of the plastic bottle (coolant overflow plastic bottle?) was opened for about 1-2 days (including while I drove back 3hr back) because I checked the coolant before I bought the car and didn't close back properly...could it cause the air to be trapped in radiator? ...I noted it today morning and I had to fill up a bit of coolant too.....i checked motor oil stick and cap but there's no indication of milky things....
please give some advice...
thanks

Well if you have eliminated any possibily of water in your rear quarters or under the spare tire and determined that the sound is coming from the front engine compartment its begining to sound like a cooling system.

Can I suggest that the next morning before you start the car to pop the radiator cap off and check the level of coolant in the rad. Be sure to top off the fluid if it is low, then replace the rad and check the overflow. Top it off as well. After you have performed these tasks check the rad and overflow again in a few days (make sure the car is cold!!).

The rad and or overflow being low would indicate a problem. When your coolant comes up to temp water is pushed from the rad, past the rad cap and into the overflow. After the car cools down that same rad fluid should be forced back into the rad by the suction of the cooling water (cold water takes up less space than hot water). If the level is low on your radiator you are A) leaking or burning coolant B) leaking combustion gas into your cooling system thus displacing water or C) You have a problem with your rad cap and or overflow hose (a nick in the hose would prevent water from returning to the rad after the engine cools down).

A) and B) could both be an indication of a headgasket issue.....

All of your questions have been answered in this thread supraD.

It's time to read through and unwravel the mystery that IS supra.

MK3 TSRM On-Line

:)This is your new bible. Save it. Study it.:)

last question to slader99....

the overflow plastic bottle has a FULL mark...should I fill up the coolant till that FULL level or should I totally fill it up till the coolant really overflows outside?

thank you much...

There's a sensor in the overflow container.

You need to have enough coolant to turn that dash light off.

But in your case. It wouldn't hurt to fill it up because it's going to suck something into the engine from that container. It can either be coolant or air.

You don't know how much air you have in the system at all. The bigger and more loud the waterfall volume. The more air you have.

I'm betting he tells you to fill it up.

You can fill up the coolant over flow to the full level, or slightly above or slightly below. The reference is just nice so that when you compare the engine cold a couple days from cold now, you will have a nice line to compare it to.

The main thing to get out of this that after you fill your rad to full, and have your coolant overflow to a known reference, a few days from now the rad should still be full, and the coolant overflow at the same level you left it at. If the rad is low, or the coolant over flow is drasticaly different (higher or lower) somethings funny....

Hey SD...., you can ask all you want.

I wasn't trying to close the thread.

I was just saying. Pretty much every scenario has been covered.

I'm just a member here guys.

I'm here to learn as well. Just like you all.

I hope I'm of some use.