My 1993 toyota corolla keeps overheating from radiator to overflow cooliant sytem. I had the water pump replaced. The water temperture doesn't get hot on gauge it stays in the middle. Can you please tell me what is wrong.

Since the water pump is leaking there is low action of the water pump to circulate the water into the engine jackets and the radiator.
So you need to remove and overhaul or replace the water pump, replace the gasket, check the radiator for leaks with high pressure test, replace with a good cap and the fault of heating and steaming will be gone. Also check the timing of the engine, do a tune up.

Hello and welcome to FixYa! If you have overheating problem, it can lead to multipleissues. You may be running on low coolant that's why the vehicle overheats. Ifthat's the case, please add coolant and make sure that it sits on the rightlevel, too much coolant can cause overheating too for coolant will overflow. The vehicle may have a faulty or worn out radiator blowermotor that's why it overheats. If that's the case then you will need a blowermotor replacement to resolve the issue. If the radiator is clogged with dirt and rusts this issueoccurs too. The coolant doesn't flow normally on the cooling system if it'sclogged. If that's the case, I strongly suggest that you have the radiatorflushed to drain out dirt and rusts. If you think that the radiator served youenough then it's better to have it replaced. Please do check the radiator hoses, If you have worn outhoses it can cause coolant leakage which can result to overheating. A tiny holeis good enough for the vehicle to overheat. A faulty thermostat sensor can cause the issue too. If youhave worn out thermostat, the fan may not trigger that's why the fan won't workwhen under stressed conditions. A blown radiator blower fuse can cause thisissue too so I suggest that you check the radiator blower fuse and replace itwhen necessary. What causes the radiator blower fan fuse to blow? It's becauseof a failing radiator blower motor, If that's the case have the radiator blowerfan motor replaced. If the fluid in radiator doesn't circulate then it meansthat you have a blown head gasket or a faulty water pump. I suggest that you gofor the water pump replacement first specially if you think that it's near theend of it's service life. Usually, water pops out the radiator when engine isreved (a sign of faulty water pump and possible blown head gasket). Hope you find this information helpful enough and thank youfor using FixYa! Have a good one!

Hello, shawlorde and thank you for asking your question on Fixya!

Here is a simple process that will walk you through a few steps that will pinpoint the overheating problem on your 1993 Toyota Corolla, without even using any tools. It has helped millions of people, and I am certain that it will help you, because I wrote it for people in your exact situation.
How to diagnose your overheating 1993 Toyota Corolla

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Thanks for the vote, and good luck!

Hi,

Did your cylinder head shaved before you installed it back on the engine?

have you replaced the thermostat? This controls the engine temp

i had a 1993 with v6 had multipule problems with cooling system mechanic changed water pump and thermostat it overheated on the way home from him i found the little hose missing from inside the overflow tank so it couldnt take back from it i replaced that and it didnt overheat for a couple of months then the hydrulic radiator fad stopped working it was the sending unit on the engine that worked for a couple more months then i found the radiator caps were bad it has 2 of them . ( your radiator could also be clogging up its old ) then a year later the head gasket went car was never overheated bad to where the coolant was steaming out either so that is probably what you are in for its an old car . hope this helps

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

replace radiator cap system depends on good pressure to keep from overheating

Sounds like head gasket to me.

The radiator is now plugged up, replace it before the overheating causes engine damage.