Question about 1987 Toyota Corolla 2 Door

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My 1987 corolla AE82 4 door sedan has an overheating problem. i changed the thermostat and radiator, not loosing any fluids, what could be the problem. Temperature sits at half way for normal and when i am in traffic or stopped at lights etc. it gets up past 3/4. please help.

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  • xx_babii_b0o Dec 29, 2008

    yeh some good ideas.. currently looking into my sender unit for my thermo fan. as it only turns on at half way. I also only have 1 thermo fan covering half my radiator (i have no air conditioning) would it do any harm to put a second in?

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Hi and welcome to FixYa,

Offhand, overheating as you described could be caused by:

  • too soft rubber upper/lower radiator hoses;
  • radiator fan clutch (is one is used) would need additional silica oil;
  • radiator fan relay switch;
  • radiator thermostatic switch for the fan.
A couple of ideas you may want to explore/consider:
  • wire the radiator fan directly to the IGN B+12;
  • remove the thermostat (not applicable in cold climate);
  • check water/coolant ratio (50/50);
  • some radiator fans will only work if and when the A/C or heater is engaged.
Good luck and Thank you for using FixYa.

Pls be informed that due to my current rank and rating, even a Helpful would be detrimental to my status. Should this solution not address your concern, it would be appreciated if you could just not rate it at all. Cheers.

Posted on Dec 27, 2008

  • 1 more comment 
  • Louie  Role
    Louie Role Dec 29, 2008

    If the free space would allow it, a 2nd fan would be good. Of course you may have to wire it separately or if will be parallel to the original, then the wires and fuse would have to be upgraded to accommodate the increase in current flow.

  • thomas flanagan Oct 27, 2010

    There is nothing wrong with your cooling system

  • thomas flanagan Oct 27, 2010

    As long as it does not hit RED and the thermo fan turns on it is fine (as it states in the corolla owner's manual).

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