Question about 1988 Toyota Corolla 4 Door

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Overheat Hi Sir, my Toyota Corolla over heats after about 15km. I have replaced the thermostat, flushed the engine and radiator. I have added new coolant. And checked for leaks, all is ok. When my gauge rises to 3/4 what I do is switch heater on max and fan on max then the temperature declines to normal. Thank you in advance

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  • 76 Answers

Hi there. does the engine slow down and labour when it over heats.

sounds like the head gasket is in need of replacing...or the ignitine timing is retarded. good luck

Posted on Apr 26, 2014

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Posted on Jan 02, 2017

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SOURCE: Troubleshooting overheating problems in 1997 Toyota Corolla?

Ok first check the water pump and if that is ok sounds like the head gasket blown, look for water in the oi, thisl will be like a milky colour

Posted on Dec 01, 2008

c17hydro
  • 2984 Answers

SOURCE: How difficult to replace 1995 Toyota Corolla radiator/thermostat

You can replace the radiator yourself, but why do you need to? The thermostat is on the engine. Follow the large hose that goes to the engine block....not the water pump. The thermostat is under that or sits on the top of the engine....looking for a pic for you!

Posted on Mar 14, 2009

savindude
  • 175 Answers

SOURCE: 1993 toyota corolla/ overheats,fan connected directly

It could be the electric fans bad or relays or temp control sensor.

Posted on Jul 13, 2009

  • 75 Answers

SOURCE: 1990 toyota corolla wagon 1.6 liter 5 spd. overheating

you've got a possible blockage in the head or block.

Posted on Oct 03, 2009

  • 290 Answers

SOURCE: No heat/defrost 01 corolla

Sounds like you have air trapped in the heater core when you flushed the heater core. loosen the upper most heater core hose and run the engine untill coolant seeps out. Wait until the coolant has reached running temperature.

Posted on Jan 18, 2010

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1994 Toyota Camry,New water pump,new radiator,but car is over heating and missing,it smokes from the radiator when I stop....


Did you replace the thermostat? How long does it take to overheat? Is there water coming out of the tailpipe? Do you have to keep adding water to the radiator?

Sounds like a blown head gasket from the engine miss. Pull the spark plugs, if any of them are kind of a bleached white on the electrode then you've got water in that cylinder and either a blown head gasket, cracked head/block, or a combination of those.

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1 Answer

Overheat


With due apologize I do not know about the model year, engine code and other specs of your car. But check the following to solve the problem.
- Check Tire inflation.
- Check the clutch and pressure plate (if manual transmission).
- Check the accuracy of temperature sending gauge. (the fan should automatically start when the temperature gauge reads center position position on the combination meter.
- Check the radiator fan air flow, throw pressure and fan direction (should throw the air inside towards the engine).
- Check radiator cap and reservoir for air leaks. Perform cooling system pressure test.
- Check all the radiator hoses for firmness. Any scale or coolant color can reveal the leakage.
- Re torque all the cylinder head bolts a little more.
- Check color of engine oil. If the color is seen brown or excessive pressure is built inside the cooling system, due to the exhaust gases released into the cooling system, the cylinder head gasket is burnt. If so replace the gasket and surface grind the cylinder head with a surface grinding machine.

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the flushing of the radiator did nothing as it only cleans out the already open cores but the blocked cores are still blocked. Fit a new radiator and possibly the bottom radiator hose as it may be sucking in as well restricting the flow of coolant from a partially blocked radiator cores.

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