2004 Honda Civic Overheating At Idle Civic: overheating when idling causes and solutions. 1. low coolant. while it seems counter intuitive, when your civic is low on coolant may run ok with wind hitting the radiator, but when idling there’s just not enough coolant to properly cool the engine. solution: fill the radiator and coolant reservoir back up. The head gaskets in the d17 engine which is in your civic are known to go bad if anything but honda blue coolant is used. this held true for both d17a1 (non vtec) & d17a2 (vtec) engines. my 2003 civic had this problem and ended up putting in a jdm replacement engine.
2004 Honda Civic Overheating At Idle Step 1 – low coolant or leaks. low coolant and leaks are the most common source of overheating, but there are other related issues that could cause your civic to overheat. check the oil cap for white spots. this is a sign of engine oil contaminated by water, and it could lead to overheating. check the coolant reservoir for leaks due to a. Hey all my car seems to be overheating when it idles after driving it u know, in traffic and stop lights but when im on the freeway, it rarely overheats my fan seems to be working too i just changed my oil recently my coolant seems to be ok what could it be?. You can buy replacement coolant on amazon. 2. coolant leaks. coolant leaks will be indicated by a low coolant level but also wet spots under the car or wet coolant hoses and other parts of the engine. 3. clogged coolant hose. another reason for why your honda civic overheating could be a clogged coolant hose. 2004 honda civic ex 90k miles heating problem(s) since about 50k miles, when driving, heater blew hot, when idling heater blew cold, but temp gauge was "normal". had to replace the thermostat in … read more.
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