Im getting a P0128 code even after replacing both thermostat and ECT sensor. I even tested the ECT circuit and only got 1.8 volts while connetor was both pluged and unpluged. I also ran the engine and unpluged the ect sensor and the fans stayed off? Please help thank You.

Problem is the speedometer thermostat and mileage and cruise control does not work. It’s computerized, but the fuel gage works.

The engine barely heats, i have low temperature on the gauge, and also from the cabin heater not much. Especially in the winter the temperature gauge of the engine barely moves, when i’m turning on the heating in the cabin, the arrow drops to zero. I’ve changed the thermostat, got rid of air pockets, coolant level is ok, changed the temperature sensor on the engine block. I’ve noticed few days ago that the rubber hose that is clamped to the thermostat is weeping a bit, i can see a slight residue of coolant crystallised. Could it be that it’s sucking air in the system? Besides that what could it be? Thank you!

I just bought a used 2004 Honda civic ex coupe and it started overheating. The previous owner said that he replaced the radiator, timing belt, water pump, etc. And gave me the old timing belt as proof. I replaced the thermostat to see if that was the issues but it was not. When I open the radiator cap to add coolant it is never full. Any ideas?

My 2008 Honda Civic start here n there. I've replace thermostat, new spark plugs, belts, it still won't start until I heat up the spark plugs, then it start. Can you tell me why that is?

I changed the radiator cause it had a crack in it and was obviously overheating. I changed the hoses and thermostat as well. The fan stopped working so I changed the relay. Every three days I top off the coolant in the morning because if I don't on the third day it will start overheating but then will go back down. It fluctuates. When I put fluid in even when cold like in the morning I notice lots of pressure built up. There's no oil in the over flow fluid. It looks pretty clean.