Question about Toyota Corolla

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I have a 1988 ae82 toyota seca i put in a new thermostat changed the radiator and gasket and it is still overheats what other problems will still cause it to overheat

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Hi, overheating can be caused by anything that decreases the cooling system's ability to absorb, transport and dissipate heat: A low coolant level, a coolant leak (through internal or external leaks), poor heat conductivity inside the engine because of accumulated deposits in the water jackets, a defective thermostat that doesn't open, poor airflow through the radiator, a slipping fan clutch, an inoperative electric cooling fan, a collapsed lower radiator hose, an eroded or loose water pump impeller, or even a defective radiator cap.

  • Bad Thermostat
  • Cooling system leak
  • Leaky head gasket
  • Fan not working
  • Leaky water pump
  • Lower radiator hose collapsing
  • Plugged or dirty radiator
  • Dragging brake
  • Slipping belt
So you have to check one after the other to isolate the cause of the overheating...

Posted on Oct 03, 2010

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Overheat


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

Mar 25, 2014 | 1988 Toyota Corolla 4 Door

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How to change a thermostat in a 1998 corolla


If the Engine runs hot or overheats: Check the coolant level in the radiator when the engine is cold. Check the radiator hoses and drain **** for leaks. Check the radiator, radiator cap, coolant reservoir, heater hoses and all hose connections for leaks. The radiator should also be inspected to ensure it’s free and clear of leaves, debris, etc. Remove the radiator cap when the engine is cold; run the engine for 5-10 minutes with the radiator cap removed to release air bubbles from the cooling system (this procedure may need to be repeated). With the engine off and the coolant still warm, touch the upper and lower radiator hoses. They should both be warm. If one is cold, the thermostat could be stuck in the closed position, or, the thermostat may have been installed backwards. If the problem persists, visit yourToyota Dealer Service Department for diagnosis and repair. DO NOT DRIVE THE VEHICLE if the engine overheats.
To repair: 1. Remove the cover on the right side of the under-engine. Drain the engine coolantinto a sealable container.
2. Take out the fan and the V-belt on the generator, then remove the generator assembly. Remove the two nuts that hold the water inlet in place and then pull the water inlet.
3. Lift out the thermostat and remove the gasket. Clean the gasket mating surfaces thoroughly of dirt and old gasket material.
4. Put a new gasket on the thermostat, then install the thermostat so that the jiggle valve is on top. Make sure the thermostat is set within 10 degrees to either side of the prescribed position.
5. Connect the water inlet and set the two nuts in place. Tighten the nuts to 8 foot pounds.
6. Set the generator assembly in place. Refill the engine with coolant. Start the engine and check for leaks. Replace the right side cover under the engine. Your done!!!!! good luck and email me for questions - Bray2thaden@yahoo.com

on Mar 12, 2010 | Toyota Corolla Cars & Trucks

1 Answer

94 camry xle 6cyl changed thermostat changed hydraulic fan new radiator cap and new coolent and it still overheats once the guage reaches a little over half way then it gets hot real fast what do i do


Softly418 had this problem...........

This could result from a thermostat which is stuck closed (but you have a new one), or a failed coolant temp sensor not allowing the radiator fans to run when they should, but I think you have a blown head gasket. Overheating is a classic sign of combustion gases getting into the coolant. The pressure also forces it out of the overflow.

Warm up your engine a little, about half, and remove the radiator cap by putting a towel over it first. Then let the engine keep idling until hot while you look down the filler neck into the radiator......carefully.

If you see white bubbles like dry ice, that is a failed head gasket. If not, have a mechanic do a test for combustion gas in the coolant with a gadget like this

http://www.youtube.com/watch?v=1_SIwHMLmkM

May 26, 2012 | 1994 Toyota Camry

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1988 supra non turbo. overheats, pressure builds u...


Check fan clutch does it have silicon,or replace silicon

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1997 Chrysler LHS is overheating


If when you replaced coolant you noticed taht it fills slowly, the radiator could be internally blocked. Usually it can be flushed or if really bad, replace it. Also have the radiator checked for hydrocarbons...any in there tells you that there is a head gasket problem.

Jun 26, 2009 | 2000 Chrysler LHS

1 Answer

Is it any good to put on L.P.G.


you may have a faulty radiator thermostat thats has failed in the closed position or you may have a radiator that is plugged with scale. if you dont remember when the thermostat was last changed then I would do this now.

Jun 17, 2009 | 1986 Toyota Corolla 2 Door

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