Question about 1993 Lexus Es 300

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My car gets over heated to where the water comes shutting out and the water is boiling hot that it cracks the radiater and it has nothing to do with the fans because there working what else could it be

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  • Richard Scordino May 18, 2011

    If pressure builds high enough to split the radiator you have a blown head gasket.

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Thermastat wather pump or head gasket

Posted on May 18, 2011

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Is water suppose to be coming out of spout on radiator....I put water where coolant goes n it just shoots out?? And car overheats


car over heating because thermostat faulty its stuck closed not opening allowing coolant flow from engine to radiator.hot climate need 50/50 antifreeze and water.straight water will boil away at 212 degrees. engine can get hot as 225 degrees you need add coolant to raise engine coolant boiling point temperature.

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Water pump is boiling on a 1999 CADILLAC DEVILLE but car drives okay vibrates a little


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Will the thermostat make your car run hot


an faulty thermostat will make the car boil but the water will normally go to the resevoir bottle. I be checking for burst radiator hose or cracked top tank before anything else. Thermostats are c;osed when the engine is cold and as the water heats up they open and allow water to pass through the radiator to cool. Coolant over the engine means boiling and escaping through an opening (hose,tank punctured radiator etc)

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Drained radiator added prestone Radiator flush refilled and started overheating, drained radiator replaced thermostat and now I get no heat from heater,Radiator water is hot


disconnect the heat hoses going into fire wall , put hose into one with pressure and flush as it sounds like it could be bloked in the heater core,the other thing that could be the problem be the hot ,cold switch as it restricts the flow to makes the heater hoter or colder , it might need tlc or replacing as it is manaul not elec

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My 2002 buick century is loosing coolant fast. When car isn't running around 60-70 mph is seems to heat up more than normal and no heat or ac will occur. Should I replace the thermostat? I noticed the fan...


it sounds like one of several problems radiator needs flushed , water pump is bad or going, thermostat is bad, pin hole in one of the hoses, cracked head, hole in radiator, hole in heater core.if core is leaking you will notice water on the floor inside the car on pasenger side. if radiator has hole when you fill radiator with coolant it will leak froom fins sometimes only when hot. thermostat bad your car will read hot and or cold always. if stuck open cold, if stuck closed hot, after about 15 20 mins of running engine will cause radiator to boil over to over flow tank.never open radiator cap when engine is hot :) burn hazard.if pump is bad or going will notice gauge reads hot intermittent or always. will boil in to overflow tank. if head is cracked will notice water comming from side of engine block or in oil when you change oil. if radiator needs to be flushed will notice scale or gunk on radiator cap
(if you think you need help or do not have tools to perform please take to a machanic)

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My 1997 Dodge Intrepid overheats. I've replaced the thermostat, and it continues to overheat. I noticed adjacent to one of the radiator hoses, a ribbed hose that is split. Could this cause the car to...


Now that you've eliminated the thermostat, it could be a number of other things. Don't drive the car too far until you've fixed the overheating problem - overheating can destroy an engine.

That split ribbed hose you see is plastic wire loom - it carries and protects electrical wires, and is not the cause of overheating.

1. Low coolant level
2. Radiator hose split/cracked, causing low coolant level.
3. Head Gasket - leaking, causing low coolant level
4. Thermostat - stuck closed (you eliminated this possibility)
5. Radiator cap - worn/damaged
6. Radiator fins - obstructed by debris/cardboard
7. Water Pump belt - missing/broken
8. Heater Core - leaking, causing low coolant level
9. Intake Manifold Gasket - leaking, worn, damaged
10. Radiator Fan Relay - faulty
11. Radiator Fan Blade - broken, missing
12. Radiator Fan Sensor/Switch - faulty
13. Water Pump - leaking, causing low coolant level
14. Radiator Fan Motor - faulty

My primary suspects would be Rad Fan Relay (#10), and
Rad Fan Switch (#12).

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I own a 1990 Chevy Lumina car. I had a new radiator put in it. Then I replaced the jhoses, water pump and thermastat. After refilling the system, I ran the motor for 7-8 minutes idling, then I ran it at...


It could be the fan temp. switch but it shouldn't have been boiling in the overflow tank. I'd recommend doing a compression test to see if you have a blown head gasket. If it's a blown head gasket, the compressed air/fuel mix being force into the cooling system could well look like boiling in the over flow tank.

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1 Answer

Suzuki forenza


When the engine shut off on the way home it was because it was too hot. The boiling that you see is compression leaking into the water jackets. You have most likely blown the head gasket or even warped or cracked the head. The car has to go to a shop and be checked out. A pressure test and compression test are a good place to start, but chances are the engine will have to be taken apart to find the true extent of the damage. Hope this helps.

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Overheating and bubbling out of my overflow.How


Might be the heater matrix for the car heating system that is leaking in which case your carpets will be wet underneath

If the matrix is ok then I would hazard a guess that the block has cracked and gases are being forced into the cooling jacket around the block.

Fill the radiator leave the cap off, run the car stationary , watch the water , if there are lots of bubbles coming up from the radiator your head , block or gasket needs attention

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use 50-50 antifreeze and change your radiator cap but first drain all the old antifreeze out.. hope this help

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