Question about Honda Cars & Trucks
Ok wen i start my car it run fine but after the engine warm up it start bubbling i was thinking its because of the fan not working
Bubbling at the RAD cap to the expansion tank is.:
1: overheating, and all cars overheat, parked, running and no fan.
2: blown head gasket. or far worse....
3: bad rad cap, the gasket is bad in side it.
the FSM covers the fan test, read that.
or login to alldata.com and read engine cooling. section.
Posted on Feb 09, 2014
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Posted on Jan 02, 2017
The fan relay may be malfunctioning (the fan relay is what actually switches the fan on and off and gets its signal from the ECM, which in turn gets its signal from the temp sensor) testing/replacing the relay and temp sensor would be the best thing to start with,... unless you notice any additional (non factory) wire attached to the power wires to the fan. Sometimes folks, in an attmpt to fix an overheating or fan relay problem, attach a ignition switched positive lead from the fusebox or other switched source to the positive poer lead on the fan,.. making the fan run whenever the ignition is switched on.
Posted on Nov 12, 2008
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
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