Im changed my coolant today and I cant get the coolant to come out of the coolant throttle body hose to fill her up. Im also having the water rushing sounds coming from the heater core. Now before you guys comment that I need a new engine. This is the first time I've heard this sound after owning the car for two years and I heard it right after I flushed the coolant. What could be wrong.

 

I've actually used the TB coolant line to fill coolant as well. My hose spray attachment on the hose has multiple spray sizes, I pick a small size and fill 'er up. If you have a lot of air up top in the system, you'll have trouble getting water to come out from filling at the filler neck.

Dale

 

If you are filling the system from the ast, then filler neck, you may not get any coolant coming from the disconnected TB line. I wouldn't worry about it. Just drive the car and check it at the filler neck after cooling down. Do this a couple of times, and you will be fine. You may find that you need to add a tiny bit.

 

I dont have to add any fluid at all. Drove the car all day but I still hear the water sound from the passenger side. For the record car does not smoke at startup. Its not hard to start when cold or hot. Does not loose any coolant. No coolant buzzer going off. Is it possible for an AST to fail without any leaks in it. This sound came immediately after changing the coolant.

 

Did you get the rpms up when you drove it? Theoretically that would force any air pockets out of the heater core after a while. You can also try parking the car uphill or up on front wheel ramps to lift the front end a bit.
Not likely, as it's just got some compartments inside. It either splits and leaks, or it's fine.

 

I reved the car to about 7k. Even drove with the heater on full blast to see if that would help but I still hear the water. As for parking the car, my drive way is at a steep incline.

 

Tried parking it both ways after driving it for a while, and letting it sit for a bit? I'd think that parking it pointing uphill and letting it sit overnight would help dislodge any air pockets.

 

I still got the water noise this morning. Still no coolant buzzer, not leaking coolant or overheating.

 

Have you tried burping the coolant system again?

 

Open the hood, and try to hear where the noise is coming from. Did you check the overflow tank?

 

burped the system and cant fill anymore coolant. There are no noises under the hood. The sound is from inside the passenger compartment below the glovebox.

 

Can you park the car pointing uphill, and disconnect the TB coolant line? Loosen the filler cap first, then disconnect the TB line; the coolant should have no choice but to drain out the lowest exit point.

 

Have you tried parking on a flat surface or turning the car around?

Also, when filling the system, try squeezing various hoses and such (radiator hoses, upper and lower, the throttle body line) to burp any air out. The sound from the passenger side area is an indication that there's air in the system somewhere.

 

Kento I've done that and it does come out a bit. I've parked it up/down and on flat surfaces. I did squeeze the the lower radiator hoses when filling. No more coolant can be added. I tried what Dale Clark said to fill from the TB hose and all that does is shot coolant out from the TB nipple. This is so annoying. My car never made this noise before the coolant flush.

 

I here a water noise when i started my car today sounded like I turned on a sprinkler system. Had coolant flushed a couple days a go. I thought a hose burst when i turned it on.

 

The only thing i can suggest is starting over completely....

http://www.face2faces.co.uk/RX7/howto/coolflush.htm

 

Any air in your lines will eventually work its way out. I would give it some time, and not worry about it.

 

Eventually, in the meantime wont all those air pockets cause havoc on cooling temps. I have yet to drive the car for a length of time.

BobfisH, thats the site I used as a reference.

 

No. Just drive it normally, and keep checking the coolant level after it cools down. It is not likely that you have much air, since you have not had to fill it.

 

Well, know I'm getting were its stumbling when cold or hot. The stumbling only lasts no more than 20-30 secs. Other than that, no leaks, no coolant boiling, still have the water rushing and no coolant loss. Should I check the plugs to see if there is any wet coolant or fuel on them. If so, whats the best procedure, ie. when hot or cold. Should I change any setting on the Power FC. What would cause the stumbling. After the 30secs she runs just fine. Say I go to the store and shop for about 10mins I come back out and she starts fine. If I wait about an 30mins it stumbles.

 

Here is your solution ok!!! no one knows this,but someone here was close!!! get your floor jack,jack the front end up all the way! open the caps,i forget wich is wich but ive done this a millino times and it takes time,but it has been a while since i worked at that shop,so do the usual,but with the front jacked all the way up,remember that radiator is laying down!!! run it till its fully warmed then cap it,the next morning it will prob need a little topping off,just how it is. but that will get the air bubble out. wich IS the sound you are hearing.

 

I cant do that, if I turn the car on coolant starts to run over the filler cap. Also, I checked the spark plugs on the car and only one was wet. The rear leading plug. Only thing is it was wet with oil, even around the plug hole. Didn't smell like coolant to me. Mom/Dad said it smelled like gas, they even complain with I start in the morning about the gas smell. I replace all the plugs.

 

Your car really is fine. Drive it, and enjoy it

 

Well, now I'm able to add some more coolant. About every 30min I can add a little bit more with both caps removed. So far I have added about 2 cups. Only problem now is when I turn the AC on on highway or city the temps go to 220 and continue to raise. I turned off the AC at 230.(I'm sure it would have gone higher) This was the temp with the fan mod done too and running on high. After the AC is off its about 210 with 100F temp wheather. Im hoping its the missing coolant and the air pockets, though it might be a stuck thermostat in the open position.

 

ADAM C. forget to mention, what could have caused the oil stain on the leading rear spark plug as well as the stain next to it. All, the other plugs were fine.