Coolant Gone - Help!

[aqteam]

Hello, Coming back from a week interior camping, call my wife and she tells me her

Es300 overheated and lost all coolant. Thats all I needed.

I refilled and watched for the leak and it seems to be leaking from a drainage hose behind the engine (under the passager dashboard area). Does anyone know where this hose is coming from? Is it the rear block coolant drian plug? Thanks in advance.

[amf1932]

There is a heater core in that location. Hopefully, the leak might be caused by a bad heater hose. otherwise it's a pretty big job to remove the heater core that might have sprung a leak.

[SKperformance]

I could be a leak in the core .

Is it in the cabin area or the engine bay as your above is not very clear?

What colour is your coolant?

[aqteam]

Thanks for the advice, I think I need to clarify:

There is no leak in the car. The hose is located under the car, behind the engine. It seems to look like a drain hose for coolant. I;m going to put the car up and take a better look... follow the hose and hopefully it leads toa loose bolt or wing nut. The coolant is coming out green.

[SKperformance]

hmm another problem with green coolant ,

let us know

[aqteam]

ok.. I looked under the car and NOW its clear water coming from what seesm to be the A/C hose... seems normal.... however yesterday when I filled the empty system and took it for a spin on the highway, when I stopped, there was a steady thin stream coming out from this A/C hose (prob. water, but seemed excessive). So now I think the system seems ok... I;m thinking I should:

a) replace the thermostat

B) replace the oil / filter (overheating may lost vis.)

c) keep topping coolant at rad cap, to release any air trapped

d) replace my rad cap, when I take it out it seams to stick and there is a nick in the bottom rubber ring

So my questions are

a) Is changing the thermostat easy? Is it near the rad cap?

B) Is my approach sound

c) Any other thing you guys think I need to check.

[SKperformance]

when your wife said it overheated what happened

fill in some details

also did the needle raise to red and/or steam from under the hood?

[aqteam]

Details: She drove 20 minutes on the highway and noticed steam coming from under the hood, pulled over till it stopped steaming, opened the hood and put water in the reseviour, then tried to drive agian and the needle went up to Red and so she pulled over.

A month ago, the car started to overheat on me, the needle creaped up to H, but not quite there, I cranked the heat to full and it brought it to normal.... as soon as the engine was cool I filled up the rad with coolant.... it was low... I got home and next day put in more coolant.

Hope that helps.

[SKperformance]

Well it sounds like you have a leak and the wrong coolant in their.

Wrong being it didn;t come with green coolant but red.

If interested in the differences or lack of ,do a search for coolant to have a few days worth of debate.

Now to find where ti is leaking ,basically get a pressure test ot find the problem

[aqteam]

Thanks for the info.

I'll get that done and get one type of coolant in there.

Do you know where the thermostat is located?

[SKperformance]

thermostat is not user accesable as it is deep by the water pump

[amf1932]

Do you know where the thermostat is located?

If you follow the lower water inlet pipe on the bottom of the radiator to the bottom of the water pump that's where it's located.

[aqteam]

Thanks, I took the car in to a local trusted garage and they couldnot find any leak, but could smell the antifreeze, so they assume it is steaming out somewhere, I'm afraid to do a pressure test to find out that its from the head.... so I;ll flush the system and wait and watch...

Thanks for all your help.... Who's the girl beside your car?

[SKperformance]

I have no clue who she is ,just one of the 20 girls i had pose for me.