Question about 1997 Honda Civic
Generally if one hose is hot, and the other hose is cold it indicates that they water is not circulating. You could have a defective thermostat. Take the thermostat out and run the engine without it. With the radiator cap off you should see a lot of water moving through. It that is the case, replace the thermostat and you should be ok. If there is no rapid movement of water it may be the impeller on the water pump came loose. This is rare, but it can happen since the impeller is usually pressed on the shaft. You should also check and see if you get a lot of bubbles when the car is running and the cap off. This often indicates a blown head gasket. Hope this helps.
Posted on Aug 10, 2010
Check the oil for coolant contamination and vice versa. Check for condensation at the tail pipe or white smoke with a sweet scent. It sounds like your thermostat works and the water pump will usually make a grinding or squealing noise and the pulley will wobble if the bearing begins to or is failing. Other than that I would check for leaks from the bypass hoses on and around the intake especially near the firewall side and check the recovery tank for cracks. Please rate me on this answer.
Posted on Aug 03, 2010
Testimonial: "Did the checks described, all ok. Tested thermostat on stove, and did not open until 193 degs. Replaced and all ok. "
Check the oil cap for white oil deposite, the water has to be going somewhere and the likely hoods is that if the thermostat is bad the over heated water will push throught the head gasket seal and cause oil and water mix the car will also make white smoke, to check the thermostat remove it and pour boiled water from your kettle over it, you should see the plunger opening with the heat if it doesn't move it is broke. while the pipe is off to check the thermostat fill the coolant bottle with water and start the engine from cold if water is constantly pumping out of the engine block than your pump is working, if you have no preasure at all than you have a water pump problem, water pumps on honda's normally go between 130 and 160000mls so its time to do your belt and pump to avoid any further problems. hope this helps ( rate me thanks )
Posted on Sep 04, 2010
Water pump might me leaking or pump is out of order.
Posted on Aug 10, 2010
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Posted on Jan 02, 2017
SOURCE: 1990 honda civic Dx 1.5L
Have someone do a Block test of the cooling system to determine if you have a headgasket problem seems likely that that is your problem, or pull the plugs connect a cooling system pressure tester and pump ot up to 20 psi or more and leave it there if it drops pump it up again, leave it there for an hour or so and keep looking into the cylinders for evidence of coolant if you see any you have a head gasket problem.
Posted on Jul 30, 2008
SOURCE: 98 civic ex coupe. Car
it could be a possibility that the engine is running at normal temperature but your gauges are telling you that it is running hot the only way to tell is to get a temperature gauge & connect it into the water system somehow to give you an accurate reading or take the vehicle to a radiator repairer & they may be able to do it for you..........hope this helps.....cheers.
Posted on Sep 23, 2011
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