overheating

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#11

06-05-2008, 05:55 AM

mundy5

HCF Member

Join Date: Apr 2008

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Posts: 688

RE: overheating

Quote:

ORIGINAL: 97blackhonda

i have a 97 honda civic dx d16y7 automatic my car keeps overheating i changed the fan motor,fan relay switch,the thermostat, even the sensor that is in the front of the motor by the distibuter and the fan sometimes comes on, i dont know what else to do[:@]

thanks i bought a new fan switch sensor and now my fan works thanks mk378

Are you telling me that the fan relay switch and the sensor you replaced in your first post is different than the fan switch sensor? how many switches and sensors does this one assembly have? Anyway, I wonder if all the stuff you purchased was unnecessary and the real culprit was the fan switch sensor.

regardless, glad it is now working.

#12

06-05-2008, 06:41 AM

mk378

Recognized HCF Member

Join Date: Jun 2007

Posts: 10,023

RE: overheating

Yes there are 3 electrical devices on a Civic all measuring coolant temperature, for different reasons.

#13

02-04-2009, 10:40 PM

v00d00ppl

Junior Member

Join Date: Feb 2009

Posts: 2

Quote:

Originally Posted by mk378

Neither of the 2 sensors screwed into the head under the distributor controls the fan. The one with one wire, toward the back of the engine, drives the temperature gauge on the dashboard (This is called the "coolant temperature SENDER"). The one toward the front of the engine with two wires ("coolant temperature SENSOR") tells the ECU the engine temperature so it will know to run in either warm up or normal mode. The sensor on the thermostat housing is an on-off switch ("coolant temperature SWITCH") that turns on the fan when the water returning from the radiator gets too hot.

thanks this helped me with my fluctuating temperature gauge on my 92 civic.....plus there was an air bubble in the radiator, once we got that out then everything else was good.

#14

02-06-2009, 08:22 AM

v00d00ppl

Junior Member

Join Date: Feb 2009

Posts: 2

Quote:

Originally Posted by denice25

Maybe your radiator is the problem, better check on it!

no, coolant was flowing through.....and when i took out the coolant temperature sensor it looked really black and it seemed like whoever worked on my cooling system before didn't let the cap off to release the air bubbles.