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Old 07-15-2014, 11:23 AM
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somick somick is offline
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Re: 93 accord coolant temp sensor

Quote:
Originally Posted by boxeaterbobby View Post
the car gets really really hot and the fan never comes on until you turn the car off. the temp gauge never goes above half way. im not sure when the fan should kick on but i think if the gauge went past half way the fan might kick on at some point. i have already replace both the fan sensors the ones that are located where the 2 radiator hoses are. unless anyone else has any suggestions im gonna try replacing the temperature sending unit
Your description “really hot” is pretty vague and it is hard to judge if your sensors are the problem. From what I remember from the Haynes manual you need to briefly short the sensor wire to ground and if the gauge goes all the way up to “hot” your sensor wiring is good. To check the sensor itself I would compare the resistance to the known good one or just check the specification for it.
The overheating issue might be due to
1. Bad thermostat
2. Clogged radiator
3. Failing water pump
4. Lack of coolant.
I would also try to put power to the fan to make sure it works.

Good luck,
Sam
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