My car engine is overheating and the coolant is boiling and letting off steam what is this problem??
Answers:
i own and operate a repair shop,,and it could either be a thermostat,or a bad water pump causing to to do this,,even a slightly clogged up radiator will cause one to blow back on it,it may need to be checked out real good especially before winter time gets here,,a water pump can cause it to do this,and the pump will not be leaking on it,,the fins inside the pump get worn on them,and they don't circulate the water good enough to keep it cool,,id just have it checked ,and let a good mechanic repair it,,good luck i hope this help,s.
change thermostat and flush system, maybe change temp relay.
t-stat is probably not opening right, its old.
Could be stuck thermostat or a cracked head. What is this engine on??
you need a new radiator, i don't think a flush job will fix it. and thermostats stick open.
change the thermostat. have cooling system flushed .
Hard to say, but I'm thinking head gaskets. Don't know any specifics like model, year, etc.
Check your Engine oil level.Get your wheel alignment checked. There could be brake binding also. Your car is facing tremendous drag. Could be one of the above reasons.
It could be a number of things, from a simple needing a new thermostat to a blocked radiator to a bad head gasket. You can't tell my opening the hood and looking at the motor. Take it to your favorite mechanic and get a diagnosis so you will know what the problem really is. They explore your options. Or listen to the bad advice you are getting here and try each of the suggestions until it doesn't overheat anymore.
it could be a few things
1 the coolant mixture may be too weak
2 there may be an air bubble in the system
3 the thermostat may need to be replaced
to fix these: pick up a test kit from an auto shop or ask a garage to test it for you.
if it a air bubble, when the engine is cold remove the rad cap and start the engine, allowing the car to run for a few minutes. this should work out the air bubbles
if the thermostat needs replaced, you can do it yourself really cheap, but if your not mechanically inclined take it to a garage.
I would check the thermostat first because that is the cheapest and easiest thing to fix. If its not that you may have a blown head gasket. Also check your belts. and the water pump weep hole. Don't keep driving it or you will be checking the price of a new engine.
It could be your thermostat or your fan belt. Did you check your fan belt to be sure it is running properly?
Before your car heats up, does the fan ever try to kick in? If the fan either never kicks in or does not kick in until your car's temperature gauge is close to H, then it's definitely your thermostat.
If this is not the case, then it could be your oil pump.
I don't know what the problem is but I can give you a tip though, when you're car is overheating and you know you can't really stop for a while (like when you're in a rush stuck in traffic!), turn the heating on full blast.it'll make the temperature come down in a few minutes
Head gasket could be gone.
If you get the thermastat out of the housing and dip it in boling water it should open.If it doesn't then it is a reasonably cheap repair.You just replace that thermastat with a new one.
A garage will be able to replace and test any parts if you are not able to do it yourself.
If it is a head gasket problem or a cracked head it will be pricey to repair.
If it's a whole in your radiator there wouldn't be water to boil you would have lost it all before the engine shows the red light or needle over to the right!
Simple solution:
Locate two hoses, one in and one out from the radiator?
The one out from the radiator, in its path there is a housing where the thermostat is installed. It is about $4 or $5. You can DIY. Easy. Replace this even if you think it is working OK. This is your first step.
If it still does not fix the problem, then:
Second: Your water pump is broken. This can be replaced only with with some special tools. If you know how to, then power to you. If not, expect to spend about $250 to get it replaced.
They will also do a rad flush while they are at it just to be thorough.
These are the only two reasons why the Rad. boils over, assuming you have rad liquid and not plain water.
ask ur mom
your car's cooling system has a leak.. it could be really little, but it's letting go the system pressure, that's why the water/cooling does not pass trough the system, or the termostate colud be stuck. It's no more than 20 bucks to fix it. You don't need to replace the radiator. Find the air / water leak, or replace the termostate. That should do it. I've had that problem about 3 times with different cars but it's easy to solve it.
either:
the thermostat is stuck closed £50
The radiator is blocked £200
a pipe is blocked £25
you have a water leak £25
your engine has no oil and is worn out £1000
(inc labour and parts )
Without delay ( i.e not "i'll do it when i get home" ) check the oil first.
Don't just go ripping the thermostat out. Feel the radiator.if the top is hot and the bottom is cold then the thermostat has gone. If the radiator is hot allover then this suggests something more serious that a garage needs to look at.
Just another tid bit of info.. turn your car on and go watch the exhaust look for steam.. If you notice steam rather than regular exhaust fumes you could be looking at your head gaskets or a cracked head.! If it is steam try not to drive it cause if it is just the gaskets and you keep driving it you can cause a lot more damage like a warped or cracked head. Hope this info has been helpful..
Sounds like thermostat is stuck closed, I would change that before anything else.
That person that said that thermostats stick open is half right. They do stick open, but they also stick closed.
two probable causes. first check to see if you have a coolant leak that causes your radiator to get low on coolant. secondly, check your thermostat and make sure it isn't stuck in the closed position.
I've reviewed the answers and noticed that one thing was missing .. make sure your electric fan is operational. It turns on from a thermal switch . if the switch or the fan motor is bad you will experience the symptoms you describe.
other wise ..
Thermostat.
collapsed hose./ blocked hose
head gasket, cracked head, cracked block.
blocked radiator/ extreamly dirty inside or outside
bad water pump
broken fan belt or fan blades
your thermostat or have u checked the water in your radiator
you should check the water pump. usually your engine become real hot because no water is running thruogh your engine. The water pump cost about $50.00 to $60.00 so it will come out to a total of about $100.00 including the service
Change the termostat it is suck closed!!
I`d listen to irishmama!!
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