Question about 1992 Honda Prelude

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I just purchased a 92 honda prelude. the car temp for the most part was fine until u step on it a little bit then she starts to over heat. i guy told me to replace the cooling fan sensor and i did. didnt fix it. then it started over heating again, i turn on the heat in the car and it instantly dropped. after cutting it off it started to increase again. i went and brought a themostat took the old 1 out and place the new 1. it seem it got worse. by me turn on the heat and seeing the temp instant drop say something going on with the themostat

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  • cruzazul420
    cruzazul420 Jun 01, 2012

    where would the cooling fan sensor be at



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Is the thermostat installed correctly? There is a bleed hole on the thermostat with a rivet in it. That should be up. Is the coolant level topped off? There should be a bleed screw on the manifold if I remember correctly. Honda's are very sensitive to coolant level. Check the cooling fans to see if they are running. The left one should be for cooling and the right fan for when a/c is turned on. You can jumper the plug for the coolant temp sensor ( where the lower radiator hose attaches to the block) and the fan should run when the car is running. If all else fails, you should have your cooling system pressure tested as this could be a blown head gasket.

Posted on Aug 31, 2010


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Take off rad cap and start engine and let all air out this will take a good half hour and also to keep topping it up with coolant also turn on the
heat in the car.
when you had changed the thermostat you forgot to bleed the system and air will create problems.

Posted on Sep 28, 2010


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Hii I'm new to cars. My 92 prelude gauge still


I understand being new to cars, but that is ok. I am hear to help you. Some cars run hot, that is normal in a lot of cars. As long as it does not go into the red or way over the half way point your ok. But this is what I would do, this will make sure that car water temp/engine temp is working properly. First of all check your engine oil and make sure it is full at the dip stick. And then do the same with your radiator, make sure it is full with antifreeze. Also, you can have the antifreeze checked, they can test it, to make sure the right mixture of antifreeze and water are proper mixture. If not enough antifreeze compared to water ratio is off, then that can cause some over heating or possible over heating issues. So, in conclusion: first things to check is engine oil level and antifreeze level and mixture. I hope this helps you, thanks mike, expert fix ya man.

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Hi, are you sure u need a new thermostat? Running in the mid temp range is ok. If u think u need to change it, here's the info. I believe your Prelude uses a 195 degree thermostat, but go to a good parts store and give them the year make, and model and ask them what thermo. u need. Also get a gasket. The thermostat is located at the end of the radiator hose (the top hose). Disconnect the house at the 'housing' and remove the housing (2 bolts), the thermostat is now exposed. Pop it out (u might need to persuade it w/ a screwdriver (gently pry it out) and remove the gasket, clean gasket surface. Install gasket and thermostat, being careful that they stay in position when u bolt the housing back in place. Re-attach radiator hose, top off coolant, (50/50 Mix), and last, there is a bleeder valve which I believe is on the housing that u loosen after starting the car, when air stops coming out, tighten and u r good to go. Do u have any idea when the coolant was last changed? U might want to consider it if it's been a long time, or u r not sure. Let me know how u make out, or if u have any questions. Good luck! countrycurt0

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