Question about 1987 Honda Accord

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Overheating; radiator fan not running - 1987 Honda Accord

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Try to power up the fan directly with 12 volt battery power. If it works, the problem is likely the temperature sensor in the radiator. If it doesn't work, the fan motor is likely burnt out

Posted on Jul 17, 2009

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The first thing you should do, is to change the thermostat. It's inexpensive, and relatively simple to carry out the replacement.
Also make sure that the cooling system is in full working order.
These baby's had a habit of blowing the cooling system, so check for leaks.
If neccesary, have it pressure tested, to pin-point the problem.
Good luck

Posted on Jul 24, 2009

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What would cause my radiator fan to run really loud but my escape is not overheating


if it has a viscous fan hub ( fan clutch) then the fan will hook up when the radiator temp reaches around 95 degrees C
this coupling increases the fan speed to close to engine rpms and there will be fan noise as it sucks air through the radiator
it prevents overheating by moving extra air through the radiator when there is insufficient road speed to do the job
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99 olds inintrigue overheating


CAR OVERHEATING


There are many possibilities for car overheating.

Faulty thermostat clogged radiator/plugged radiator, radiator hose worn out. Coolant running low. Low coolant pressure. Faulty temperate sensor.



I suggest you to go through the troubleshooting details mentioned in the link below:-----


All types of car overheating problems and troubleshooting?

http://technoanswers.blogspot.com/2011/11/all-types-of-car-overheating-problems.html

----------

These will help.

Thanks.

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1988 b2200 is overheating--we've changed out the lower radiator hose, thermostat, and the upper hose is fine. Why is it overheating? Radiator, heat pump, or water pump?


!st check and make sure the water is flowing in the radiator, then check
the timeing, Mazda will run hot if the timeing is rong.

Jul 19, 2012 | 1988 Mazda B2200

1 Answer

Over heating


If this vehicle has the original or old(defective) thermostat, this can cause overheating if its stuck closed(defective). The engine cooling fan has a clutch, If defective the fan will just spin, not fast enough to cool the engine and cause overheating. The radiator is clogged, can cause overheating. A simple check for the radiator is when vehicle has been running awhile, engine is hot, shut the vehicle off and open the hood and carefully reach your hand down between engine fan and radiator and quickly palm the radiator at the top, middle, and bottom and if the warm temp by feel is about the same, most likely the radiator is not the problem. Good luck, best regards.

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1 Answer

Overheating


WHEN CAR STARTING OVERHEATING MAKE SURE COOLANT LEVEL DIDNT GET TOO LOW. IF NOT I WOULD REPLACE THERMOSTAT AND RADIATOR PRESSURE CAP IF OVERHEATING WHILE SITTING IDLING COOLING FAN NOT COMING ON.CHECK COOLING FAN FUSE AND RELAY IF ALL IS GOOD.CHECK COOLING BY HOTWIRING IT.IF RUNS YOU HAVE A BAD COOLANT TEMPERATURE SENSOR OR FAULT IN WIRE CIRCUIT.IF FAN DONT RUN WHEN HOTWIRED REPLACE FAN MOTOR.IF CAR STILL KEEP OVERHEATING CHECK ENGINE OIL LOOKS LIKE MILK BLOWN HEAD GASKET.IF OIL LOOKS OKAY YOU NEED RADIATOR AND ENGINE FLUSHED OUT.

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2003 Protege 5 overheating on long runs (> 20 min). Overheated today while driving at interstate speeds for > 15 min. Lost the coolant. Refilled with coolant. Return drive maintained normal engine...


Sounds like you have coolant leak if you are loosing coolant or a bad thermostat. I would replace the thermostat, they run about $10. The other fan is an aux fan and will only run when the a/c unit is on.

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thermostat replace temp sensor its cheap i hope your water pump is not bad you could mess engine up if you keep on running car and is overheating.

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1. start the engine and leave the radiator cap open.
2. put a cardboard cover or a rug in the front of you radiator.
3. let it runs 20 minutes or more, see if it is overheated and see the water or coolant in the radiator circulated or not. If not, as soon as you have already changed water pump. thermostate and check the hoses, no leak, I think your radiator was blocked.


Did you put stop leak before?

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