philipchan

hi guys,coz i always go to play mountions with my friends, and did go to track once, but i found out a same problem, after i use the same gear for a while, like the 2nd gear for couples of conners with high rpm about some mins, the red coolen light will be on, but the problem is not from the coolen, coz the coolen temp stay normal, so i'm confused about what happened, is the engine oil too hot? or the tranny oil too hot? or anything else?coz i didnt care abt it when i was playing on the track, after couple rounds, it will shut down my gas around 5000 rpm, wont let me go, untill the light is out
anyone has the same problem? plzzzz help

R888

Same here because your coolant level is low...

I added mine and the light goes off

Easy_E1

iTrader: (2)

Yep, coolant in the overflow tank is a little bit low. Top it up and your all set.

philipchan

i did fill it top, the coolen even too much and lick out a bit from the plack wire ><
but the light still go on when i rev high for couple mins

bxb40

Same issue here. I'm replacing the coolant tank cap tomorrow, hopefully it will solve it. Or maybe it is the thermostat... Coolant 2 years old - should replace in summer.

Easy_E1

iTrader: (2)

Cap could be an issue if it's weak. Lower PSI than it should have and the coolant will boil at a lower temp. And have a tendency to leak out the cap.
If your going to replace your coolant, do not use the Mazda Pre Mix. It has to high an antifreeze mixture. Antifreeze 60/40 water. It will work great for not allowing your engine to freeze, but it wont give you adequate cooling properties in the summer. Install 70% distilled water and 30 % antifreeze.

philipchan

i did replace new racing coolant and also the racing oil before track day, but still having the same problem...so may be i can try the coolant cap??where can i get the cap??
but the weird thing is the coolant temp is normal shows in the car, that's what i confuse

zaku

The coolant warning light come out in most situation was due to sensor (located in accessory tank) malfunction. This condition was very popular here (Taiwan)
The only soution is change it

Flashwing

Yep, I'd make an appointment to have it replaced under warranty. The sensor only comes with a new coolant tank so they have to replace the whole thing. This includes draining your whole coolant system.

Unless your in a very cold climate, I'd try and mixture of water wetter, distilled water and anti-freeze. Water overall cools better but you'll want the anti-freeze to extend the freezing point as well as provide protection against rust.

As Easy pointed out, the Mazda mixture is pretty heavy on anti-freeze which I think is good to -40 degrees F?

Rotary__Rocket

hey philip, havent see you in a while, hows going
i heard you went to track, where did you go to?
i just went to a track event last week also

btw, i am in need of coolant too
where did you get yours racing coolant?
i wanted to buy stock coolant to top it off but i dun think it is for sale, becoz i didnt see it in the "online mazda part" catalog

Rotary__Rocket

so if i am located in socal, i dun need anti freeze and just need water wetter and water?

philipchan

Hey,what's up
i went to the willow spring track,it was fun, but the over heat problem made me so sad...
did it happen to your 6MT?
my car get over heat even on the angles crest, i dont know is the sensor not working or what, coz the coolant temp level stay the same( normal temp), but the coolant light will on after i rev high and full gas some mins...that what confuse me...
i got the racing coolant from my friend's tuning shop,got it changed for aroound $80 - with the coolant, if you want , i can give you the number, his name is (大佬B),we go to the track with him,drives a EVO,that coolant his said can lower around 10"C, is pretty good

Rotary__Rocket

do you mind telling me the brand of the racing coolant
actually, i need to do some more research before decide what to put in my car
(i know i m a little bit bitchy, but i love my car)

btw, i am going to willow spring next month too, join us
hey, find some time to go to the 626 meet la
it will be fun, i guaranty you ...

bxb40

Got the new cap on but the issue is still present (intermittent issue - only when driven at high RPM for few minutes). Next suspects would be sticky thermostat (but temp seems OK when that light occurs) or the sensor/connector itself. Still have the extended warranty but not sure the coolant tank is part of it...

If the cap is weak, coolant level will slowly go down as vapors escape. Stant has a correct replacement cap if anybody needs one ($8 at PepBoys).

Rotary__Rocket

i heard changing cap can cure the problem/avoid coolant leak from the cap

but i think only aftermarket cap that can stand higher pressure can do this

aftermarket(greddy/hks) > stock > pepboys

this is just what i thought, correct me if i am wrong

bxb40

Partially correct - but Stant is aftermarket. Also, it is 1.3 and the stock is 1.1, so it would resist better the pressure. The racing ones are 1.6 but I would change coolant hoses and clamps before going so high - better vent the steam through the cap than to blow a hose. I did extend the coolant waste tubing all the way to under the car, just in case.

philipchan

I'm sorry dude, i just let him changed for me, didnt ask the brand name, but i know is japaness ones, i can ask him for you, i'll let you know

*** went back to Mazda, and they said is the senser problem, change the whole bottle sth, not under warranty?? around $300 sth, holy ****...(at first they wont check for me, ask me $95 for dyno check!!i said no then tell me is the senser problem), damn, just spent $209 on changing the inigition coils,not under warranty also...dam