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I have a 2003 chevy Malibu, it keeps over heating causing all the antifreeze to run out the car.

I replaced the temp coolant sensor, replaced the thermostat, water pump is good, but yet it continues to over heat and flushes the antifreeze out the car. Is there something i'm missing or is the car finally pushed it's last road trip?

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  • Tracy Apr 18, 2017

    Check heater core...if it has a hole in it you will lose coolant through a black small hose under car causing your car to run hot..You can see green coolant under car after you park....If its green...you have a hole in heater core...,..Also you can buy a thermostat that opens sooner....like 160 degrees instead of 180...Also most cars are missing the plastic spoiler under front of car....That helps lift air up to motor..Another is a bad freeze plug or blown head gasket or crack head..Hope this helps

  • metalman
    metalman May 05, 2017

    thanks

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Check heater core...if it has a hole in it you will lose coolant through a black small hose under car causing your car to run hot..You can see green coolant under car after you park....If its green...you have a hole in heater core...,..Also you can buy a thermostat that opens sooner....like 160 degrees instead of 180...Also most cars are missing the plastic spoiler under front of car....That helps lift air up to motor..Hope this helps

Posted on Apr 18, 2017

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Could be blown head gasket

Posted on Apr 18, 2017

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Get a new radiator

Posted on Apr 18, 2017

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1 Answer

Tengo un problema con mi malibu al alcanzar la temperatura de 100 grados el anticongelante se tira por el deposito


here, ill google translate this for you.
Question about 1998 Chevrolet Malibu Open Question I have a problem? with my Malibu to reach the temperature of 100 degrees antifreeze is pulled from the warehouse Whether you change temperature , radiator and tank sensor and nothing.


100C? is boiling temperature of pure water,sea level.
Normal temp is 87C. with anitfreeze the coolant boils at
132C. (under 12psi cap pressure)

over heating has many causes.
coolant not tool low? levels? inside RAD actual, dead cold.
got leaks?
try a new cap and new thermostat first , they are cheap.

Mar 01, 2015 | 1998 Chevrolet Malibu

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2005 chevy malibu cooling fans not coming on causing the car to over heat at idle.


replace the temp sensor its gone out of range
service the fans
these fans have carbon brushes maybe one is a bit worn set or something.!!!

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Heating problem


I doubt it.
The sensor is for the computer and the temp gauge on the dash.
If the heater hoses are getting hot, and the radiator is full of coolant, you may have a blend door problem.
The blend doors direct air thru the heater core and the vents.

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I have an 05 Chevy impala that blows out cold air and the hot coolant temp light comes on which causes my car to decrease in speed. The car isn't over heating, there are no leaks, but antifreeze keeps...


Possible heater core poss. thermostat ck. both heater hoses at fire wall 1 hot 1 cold its the core ck pass side floor wet its the core Maybe head gasket

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A code P0128 may mean that one or more of the following has happened:
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  • Leaking or stuck open thermostat
  • Faulty cooling fan (running too much)
  • Faulty coolant temperature (ECT) sensor
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1999 Malibu Cooling fans don't come on. Country driving is fine. City driving and a few stop lights and it over heats. Temp Gauge works fine. If I un plug the sensor then fans come on but Tranny and Engine...


country driving at high speeds keep engine air cooled. but in city there is not much air to cool the engine. check the sensor for the fans. relay for fans must be ok, cause you said if you disconnect sensor then fans run. replace fan sensor. also make sure there is a proper amount of coolant in system. (do this first).

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My temperature gage is going over in the red and my heat is not


Check the sensor which controls the cooling fans that cools the radiator it prevents the engine from over heating and allows the temp gauge to stay at normal range.recently had problems with my 2003 impala overheating it was the sensor had the thermostat replace as well.

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its at the end of upper radiater hose at housing for thermostat.

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coolant sensor maybe 19 mm key its near the upper radiator hose in the engine thanks pierre

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