My car overheated yesterday. I pulled over and let it cool down. I opened the hood of my car and there was lot's of steam. It cooled down and I drove it home. I just started it to see what's wrong. I drove it around the corner after the car got warm, and I noticed that the heat was cold. What is that a symptom of?

A number of factors might result in engine heating, such as very hot weather conditions, excessively steep climbs or very long continuous driving or even bad traffic when a lot of braking is involved. In a situation of engine overheating, the car's engine gets so hot that steam from beneath the bonnet. You can't simply ignore it, as your car will break down and can severely damage the engine.

Here are some links which will guide you to cool off your car's engine and avoid any costly damage, have a look
=> Quick steps to cool down an overheating car engine
=> Car Maintenance Guide Engine Overheating

if its overheating but staying cool at radiator then its more likely to be a failed thermostat, the thermostat should open up to let more water though to cool engine down, if it becomes faulty it does not open so there is inadequate flow and courses on over heat. and weak part is the header tank, it can also cause rubber pipes to pop or split. and blow the head gasket, so don't drive until thermostat is checked and changed, air in system should be released but the header tank it has a valve fitted to let off steam,

Car Overheating? Why your Car Overheats & How to Fix It

www.vikingspeedshop.com/car-overheating-fix-prevent-future/

Rating: 4.2 - ‎51 votes
Oct 30, 2015 - The biggest cause of this is a faulty thermostat that is stuck closed. ... If the radiator cap were to be at fault you most likely would see steam from boiling coolant. My car only overheats when I accelerate hard or drive hard!

Why Is My Car Overheating and What to Do? - EnkiVillage

www.enkivillage.com/why-is-my-car-overheating.html

An overheating car can be caused by many problems. ... Why Is My Car Overheating: Possible Causes .... If you do open the hood, try to do so only when the car is cooled down. ... Never open the radiator cap while the radiator is hot, as the release of pressure could lead to serious ... I wonder if my radiator might be clogged.

Common Causes of Overheating ' ASC Industries, Inc.

asc-ind.com/cooling-system.../common-causes-of-overheating/

... injury, never, ever attempt to remove a radiator cap while the engine is hot! Anoverheated engine can be caused by anything that decreases the cooling system's ...Possible leak points include hoses, the radiator, water pump, thermostat housing, ... Be sure to use the coolant recommended by your vehicle's manufacturer.

Diagnose Engine Overheating - Auto Repair Help

www.auto-repair-help.com/auto.../diagnose_engine_overheating.php

sounds like you blew the head gaskets or worse

check top radiator hose goes to thermostat housing sound like its leaking if your engine leaking from left driver side on top of engine it has to be top radiator thermostat hose leaking.wait until engine cool down replace top radiator hose see if coolant leaking still occur if so you could have radiator leak.

i recommend you don't drive to far and get a mechanic too check it out as you risk overheating and blowing the head gasket which is expensive. You need to get the cooling system pressure checked too find the leak and rectify it. hopefully just a hose but possably a water pump.

Hello sounds like you have overheated your engine or cooling system hose or radiator is leaking let your engine completely cool down open radiator cap and refill you engine coolant close it up and restart and watch for your leaking point this could be a rad cap.radiator hose or the radiator tank and at this point you can access the problem and feel if you can attempt to repair or not.Or you can let the car completely cool down top up cool;ant in radiator and take the car into a garage.

you might need a new thermostat

O.K. from what you just described- Miss fire on #6 and loss of coolant(it does not just disaper) I'am afraid that these two items are most likely related, along with the fact that it took along time to cool down. It sounds like the coolant is being lost thru#6 cyl thus causing the misfire and the overheating- which turns the light on. Sorry but i am afraid that you may just be spending a lot of $$ Take it to a mechanic and get a second oppinion first.

Your cooling system needs to be looked at, also,,if your engine is really overheating badly this could be causing your transmission problems.
Aside from that,,i would have the transmission checked also,,just in case.