RylAssassin

Hey,
This just started a few days ago, basically whats happening is that while cornering hard i get a buzzer that goes off for a split second like the red line buzzer and my Add coolant light turns on for like less that a second also. WTF?? IS this bad?? or is my coolant simply low?
Please help

djaaronp

Is it the Oil Low buzzer? I had this problem with my oil level, before I had my engine rebuilt my car was burning quite a bit of oil and going around a corner would cause the low oil buzzer to go off (prolly by pushing the oil to the outside of the engine around a corner?) So, check your fluid levels again if you havnt done that yet.

Aaron

RylAssassin

Ha, Yeah you know i just added more oil today it needed 2 quarts, maybe thats it your right ill have to see during another high speed corner.
I wasent sure about the light cuz it flashes so fast i cant even see i can only remeber the general area of where it lit up and so i pin pointed it to the Add coolant light, but not exactly sure

forty4milesaway

its either the oil or the coolent check ur fluid levels

StarionX

It's the low oil buzzer. You won't see the low indicator come up, because you still have just enough oil in the engine. As you go around corners at high speed, all the oil gets push up to one side, so the low oil sensor is suddenly bare, which then triggers the alarm.

This used to happen to me, and I thought that it was my horn. Now I know better.

autocrash

well, if the add coolant light is going off, chances are you are low on coolant . There is an add coolant buzzer (atleast on the S5's) (trust me, I know... damn cooling system...)
Check out the other post about add coolant light... it's got my list of possible solutions...

Rotorific

iTrader: (1)

ususally the oil cause the oil is the quickest light to go on and off the add coolant ususally stays on for atleast 15 seconds or sometimes the occational spurt but the way you are describing it it sounds like low oil

StarionX

There's no coolant buzzer on the S4, so I guess it depends on what model he has... and stop raining on my parade AUTO... there's not much technical info I can usually give, but when I do, some a'hole has to come and correct me....
Don't you have a class or something

RylAssassin

Ok guys cool this sounds positvie cuz I just added more oil after this incident, the car needed 2 full quarts looks like all i needed was oil
Thanks again

Merovign

The 2nd Gen is notorious for the shape of it's radiator vs. the position of the coolant sensor. The sensor is on the top center of the radiator (you can see the little rubber-covered nut with a wire running to it). There is an "elbow" to the <right side of car> that pokes up, the hose going to the top of the engine attaches there.

An air pocket often forms in the elbow, and when you turn it "slides" across the radiator and exposes the sensor to air.

There should be a big phillips-screw-type thingy on that elbow. That's the bleed plug for getting air out of the system. Be careful, I broke mine in half the first time I used it and had to epoxy it in place.

You can use the bleed screw to get the air out of the system, with the engine running and warmed up fully (BE VERY CAREFUL and unscrew a tiny bit at a time until water dribbles out, then screw it back in).

If you can't do that, the other technique is to (also with the engine running and FULLY WARMED UP (if the thermostat is closes here, or if the engine is off, you will get a gout of boiling water in your face)) CAREFULLY open the fill cap (on the front of the engine in front of the intake manifold), preferably with a towel over the cap to prevent spraying water and opening very slowly, rev the engine to 4000 rpm and add water until the top overflows, then put the cap back on before the water level falls.

The flow of water driven by the pump pulls the air out of the radiator. Sometimes this takes a couple of tries, but it worked for me.

Did I mention to be careful working with boiling water under pressure?

The key is that when the engine is fully warm and running, there should be little or no pressure at that upper fill point.

- Merovign

autocrash

Fine fine.. you win... this time...

I didn't know there was no S4 coolant buzzer (see, now you're teaching me stuff.. there you go...)

(so you were right, I was wrong...)


And yeah, I prolly have a class or two... this is more exciting though....

autocrash

Are there any other ways to bleed the cooling system? I've got NO bleed screws anywhere... is it possible to install one of the nifty cap/thermostat housings? (the ones with the fill cap on the thermostat housing, right above the thermostat) I think this is the highest possible fill point...

Are all the thermostat housings the same?

DaleClark

iTrader: (55)

To clear up the misinformation -

*ALL* 2nd gen RX-7's have a low coolant buzzer. Period. If yours doesn't have one, someone removed it or it doesn't work. That's how they all came stock.

Only the '86-88 radiators have the air bleed screw. The '89-91 radiators have a tall fill neck on the radiator, making it the high point in the system, eliminating the need for the bleed screw. But, the '89-91 cars are more of a pain to burp air out of .

Anyhow, the original problem is definitely low oil. Considering the cooling system is under pressure and being pumped by the water pump, you don' t have air pockets that slosh around. If you have an air pocket, it pretty much just stays there .

Regardless, simply checking the coolant level or the dipstick will verify where the problem lies.

Dale

emagdnim

I'll just reinforce that S4's DO have coolant buzzers. Trust me, mine started going off about a month ago due to a leaky upper radiator hose. That thing is damn annoying.

autocrash

No kidding eh? I hate it the most when it just keeps on coming on at random... or when it stays on for the entire half hour ride home and ppl just keep on looking at you funny 'cause you're driving around with a beeping/buzzing car.... lol....

rotarygod

iTrader: (1)

Did your buzzer come on when turning hard in both directions or just one way? Mine did it everytime I autocrossed but only when I turned right (or was it left?). This is due the location of the oil pick up tube in the pan. I installed an oil pan baffle plate at the same time my motor was ported and viola no more buzzer when cornering hard. My coolant level sensor wire broke once and the damn thing wouldn't shut up until it was grounded or had a new one installed ('88 car).

RylAssassin

Ok well who ever was the person saying there isint a coolant buzzer, im not hearing things and i know my car made some kind of wierd buzzing high pitched sound while cornering. I recently found out later today that my car had very little oil in it so id have to say that there defently is a low coolant buzzer in my car

RylAssassin

it happens only while cornering left i think, I own an 88 by the way so i prob also have to bleed my system.

rotarygod

iTrader: (1)

Maybe it was left. I forget

tIIforever

mine went off when I went left at the autocross and im pretty sure it was the oil level sensor that was making it do that.

88 vert

everytime i turn the corner the seatbelt light lights up no matter if im wearing my seatbelt or not i guess its reminding me safety first but dont stop me from cornering hard.

StarionX

I've had 3 S4's, and not one had the low coolant buzzer (but the low coolant light would come on). I guess I was 'lucky'.

PvillKnight7

iTrader: (16)

Mine did that exact same thing...with the oil warning light and hard cornering.

Not sure which light? Make a hard corner so you can catch a glimpse of it it. Shut off the car. Turn the switch to display all warning lights. See the one you glimpsed...?

Ryan