ATPRX7

Basically, I went for a drive, came home, after 20 minutes, my coolant spewed everywhere from my overflow tank! When I was driving everything was fine, didnt overheat, the red light didnt come one, but after i parked, this is what happened, what does this mean? stuck thermostat?

PLEASE HELP!

THANKS,

Ravi

1stand3rd

Test your thermostat, replace your caps, and
pray to the rotorgod for forgiveness.
Works every time.

martini

exactly.

replacing the filler cap is what fixed it for me, but you want to make sure your thermostat is working in the first place. The thing about the thermostat is that it will just stay at the halfway mark unless something is really wrong, and it's about to overheat.

But be sure to give your prayers.

technonovice

Are you sure it is from your overflow? Could just look like it is!

ATPRX7

Yes I am sure it was from the overflow, i took everything apart.

I looked at the theromstat, and it is definetly bad, it has all the rubber on the inside chewed up and stuff, so it is bad.

Here's the thing. It did not all overflow until after i turned it off, and i didnt notice anything weird until i turned it off, other than my fans being on.

Usually when you overheat, what symptoms do you have that you know you overheated? Does the red light come on? Because none of that came on, it all came out after, so do you think my engine still might be fine?

Thanks,

Ravi

ATPRX7

Anyone, pleaseeeeeee heeellpppppppppp!!!!!!

ATPRX7

ttt

Nathan Kwok

Well,
You can think of it like this: Whatever happens to your coolant after you turn off the engine, isn't going to change anything. If it decides to boil from heat soak due to a leaky radiator cap, that won't hurt anything or help anything, because the coolant isn't even in your engine anymore once you turn off the engine. So, don't let that part bother you. However, you could have been locally boiling the coolant even before you shutoff the engine, which could fry your engine, who knows. Your best bet (once again) is to replace the thermostat, coolant, and radiator caps. Those are all pretty cheap. Hopefully your radiator cap just decided to bust while your car was sitting there heat soaking. The increased pressure caused by heat soak makes post shutoff a common time for stuff to pop in the cooling system, and boom, you have instant boilover. If you did overheat the engine, you should start losing coolant without any evident leak. Other symptoms include hard starts, white smoke (especially at startup), and more overheating caused by loss of coolant pressure (due to the leak). Like they said, pray, hard.

ATPRX7

Thanks a lot for the help, but if my coolant was boiling before i turned the engine off, and it overheated, wont my gauge tell me if it was THAT severe? Like wont the red light and buzzer come on or the gauge skyrocket?

Thanks,

Ravi

fluxen

Possibly, but remember that it's possible to have air bubbles trapped in a certain spot in the system, and for that point to be boiling while the rest of it's at 80C. Since you only get your temp reading at one spot in the system, it just really gives you an "average" of the temp throughout, if you know what I mean. If that spot were in an important area, like around the coolant seals in the housings, or in the turbos, that would be a problem...

I still think you just overboiled after shutting off though, when the temps skyrocket like 20 degrees C. I'm assuming you have the fan mod.