tien2

Just recently my 93 accord has been acting up. My temperature gauges goes up to the 3/4 mark whenever I'm at a stop. I know it has to do something w/ my fans because on the highway it stays in the middle. I realized that my fans come on only after I turn off the car but doesn't come on when the engine is running hot at an idle. Can it be the cooling fan relay (fan still work though) or the fan switch sensor, or something else. Any help appreciated.

Ross 2.0

Is the thermostat opening? If not you may have a bad fan switch (on the thermostat housing. Will the fans come on with the a/c?

tien2

Thanks for the reply. The thermostat should be open if the car is running hot at different temps right. On the weekend I could try to take out the thermostat and tie some string to it and submerge it in hot water to see if it opens.

I haven't tried turning on the A/C to check out the fans. I'll try tomorrow though. BTW, I see no signs of coolant leak cause my coolant is full all the time.

So what could be the main cause:
-Fan switch sensor
- thermostat
- radiator cap

Ross 2.0

After the car has been running for a while just grab the lower radiator hose. It should be hot.

tien2

I'll try out a couple of things this weekend and I'll update. Thanks for the help.

alkoholikwun

sounds exactly like what happened to me, it was my thermostat being stuck, couldnt remember if it was stuck open or close, but non the less, stuck.

tien2

Yeah, I had a feeling it was either the thermostat or the fan switch sensor. Im going to try changing the thermostat first since it's less expensive than the fan switch. Thanks for all the replys.