Overheating Honda civic with full coolant?

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♥ jackiee .

New member
2002 Honda civic has had overheating problems and had the radiator replaced. Water pump is fine as well but now the temperature keeps fluctuating . I drove for about 30 min in town and it'll usually be a little below the middle but I saw the needle go slowly to the middle then 3/4 from the top and then it slowly goes back to the middle when I drive but when it's idle it does back up to the 3/4 mark. I checked the coolant and it's full . The heater also blew cold air during that time. What's going on ?
 
maybe the thermostat went out. its a cheap part to buy at a auto parts store. it shouldn't be an expensive repair, if it is in fact the thermostat. the thermostat tells your car how hot or cold it is. it kicks in the fans when it needs to. have you checked to see if the radiator and ac fan turn on? turn the car on and let it run for 10 minutes. if only one fan comes on or if they don't come on, then you need the fans replaced. i had this problem this past summer in my accord. i got the fan for 30 bucks at a salvage yard. also when i went to replace my thermostat, it didnt have one. i hope this helps out. good luck
 
either the thermostat or the radiator cap is bad

my friend had a similar problem but at idle the resevoir tank boils and the thermostat goes to H
he replaced the cap and problem went away
 
Have you stood there and made sure the fan kicks on? there are usually two, one for the AC and one to cool the motor when running. These kick on via a switch. If the fans dont run, you will overheat. Try turning on the AC and driving. In the winter that may be enough for now.
 
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