Having problems with your 2003 Honda Civic ?

I have a 2003 Honda Civic EX. Same problem as many folks that I have read about on these forums. The car overheats after about 80 miles on the freeway. If the heater is on. It will begin to blow cold and then the temp gage goes up. I have had the water pump thermostat and timing belt replaced. The day after I got the work done it overheated again. I change the oil regulary and have had it checked for a blown head and gasket. Everytyhing checked out. I read that it could be air in the radiator. D

Posted / edited by AnonymousUser on : 18-06-2018

Answers :

Hello and welcome to FixYa!\012If you have overheating problem, it can lead to multipleissues. You may be running on low coolant that's why the vehicle overheats. Ifthat's the case, please add coolant and make sure that it sits on the rightlevel, too much coolant can cause overheating too for coolant will overflow.\012The vehicle may have a faulty or worn out radiator blowermotor that's why it overheats. If that's the case then you will need a blowermotor replacement to resolve the issue.\012If the radiator is clogged with dirt and rusts this issueoccurs too. The coolant doesn't flow normally on the cooling system if it'sclogged. If that's the case, I strongly suggest that you have the radiatorflushed to drain out dirt and rusts. If you think that the radiator served youenough then it's better to have it replaced.\012Please do check the radiator hoses, If you have worn outhoses it can cause coolant leakage which can result to overheating. A tiny holeis good enough for the vehicle to overheat.\012A faulty thermostat sensor can cause the issue too. If youhave worn out thermostat, the fan may not trigger that's why the fan won't workwhen under stressed conditions. A blown radiator blower fuse can cause thisissue too so I suggest that you check the radiator blower fuse and replace itwhen necessary. What causes the radiator blower fan fuse to blow? It's becauseof a failing radiator blower motor, If that's the case have the radiator blowerfan motor replaced.\012If the fluid in radiator doesn't circulate then it meansthat you have a blown head gasket or a faulty water pump. I suggest that you gofor the water pump replacement first specially if you think that it's near theend of it's service life. Usually, water pops out the radiator when engine isreved (a sign of faulty water pump and possible blown head gasket).\012Hope you find this information helpful enough and thank youfor using FixYa! Have a good one!
Repair Help & Product Troubleshooting for 2003 Honda Civic

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