yellow leak
 

i was moving my car out of the driveway after it had snowed and i saw a yellowish/green fluid on the snow directly in the middle of where my car was

any ideas what it was?

coolant

^x2. for sure. is it a lot of fluid of just a few drips? water pump could be starting to leak.

Could be from the air conditioner lines as well....

Sounds like coolant but unless somebody has changed it, it should be dexcool, and dexcool is a light red color.

which is why I said air conditioner.....

Simple way to find out.

Open coolant bottle and see what color the fluid in there is. Sounds like coolant to me


Just changed mine. My WP was leaking like a mofo, then it stopped :wtf2: I had fun changing it. I mean I really had fun doing it. No sarcam in this.

could be urine

haha your car pissed in your driveway. did it write your name in the snow?

I know what it is.

believe it or not its common and happens to every vehicle in the winter, its the water from the snow it hits your exhaust and then drips onto the snow in the yellowish/neonish color hence why its all over and around your car mostly if you follow the exhaust its right on spot with it

lol. No.

actually yes. google it.

so robalero i shouldnt worry about it?

x2...

im pretty sure that your right because my pops car right next to mine did the same thing
thanks for the help

But how would it get yellow, that makes zero sense unless you have a yellow painted exhaust pipe (not likely).

the color change takes place simply out of contact with the hot, rusty heat-shield.
cuz this happened after i had my car running while i was wiping it off

hmmmm...the only thing that drops from my vehicles in the winter is mud...

and the hater is back :P

The only way to find out for sure is to get under the car, look and see where it's coming from.

Water wouldn't turn yellow by contacting rusty metal. If anything it might get a tiny bit of orange in it, but not enough to make a stain, and certainly not yellow.

my car doesnt make yellow snow either, thats usually me.

The only thing I could see coming from water leaking on exhaust would be maybe slightly red snow, if you had an exhaust leak before the cat, and a consistent dripping onto said leak. Then the water could potentially dissolve some of the NO2 that is in the fumes before the converter, making it red. However, a condition such as this would warrant an pre-cat exhaust leak and a faulty EGR valve, either of which would throw a check engine light.

I'm going to agree with this because it happens to every single car we own - some of which have absolutely no neon yellow fluids.

Then it must be something that's on your roads, because I've never seen it happen here, and as I said previously, just water dripping on an exhaust pipe couldn't explain the conditions you have.

spc your right don't worry about it because you now know the answer to it

I think it has to do with the Salt they use on the roads something like that but its a chemical reaction thats causing the color

My vote goes for other chemicals applied to roads instead of salts .

Agreed, the only salts I know of that are yellow would be lead salts, or maybe chromium, neither of which would be dumped on roads due to the fact that both are toxic. My guess is that it's some compound that gets on the exhaust pipe, and reacts to the high temperatures, turning yellow. As to what that is, I haven't a clue, maybe I'll do some research.

Mag Chloride?

No, magnesium chloride is a white salt, whether anhydrous or hydrated.