2004 accord thermometer / mileage gauge always goes to the mileage when starting car, even when thermometer was on when car powered off

SOURCE: 1990 honda accord rpm gauge out of wack

You probably have a faulty sensor at the transmission.

Go to your local parts store, and they can give you the part and how to install it. It's pretty easy.

SOURCE: 2000 Honda Accord - engine overheats when stopped

There are only a couple things you can check. First, I would make sure the gauge is reading properly by checking the fluid temperature manually. Newer model cars have temperature sensors that can malfunction but they will usually set your check engine light off it that is the case. Check your radiator fluid. While the engine is cold!! See if it looks dirty. Rub it between your fingers and see how viscous it feels. Make sure the radiator is full. You may just need to get your radiator flushed. A lack of flow will cause an overheating condition. When your back in motion the engine has more pressure to circulate the fluid. When the car is moving there is airflow that also aids in the cooling process as well. Other than that you have a thermostat which could be sticking and causing it to overheat. Or the water pump is bad. A flush and fill and replacing the thermostat are fairly cheap and usually a lot easier to do than replacing the water pump. Especially on a Honda. Usually you will hear a squealing noise if your water pump is going out and there is, I think it is called a weep hole on the pump itself that will start to leak when the pump is going bad.

autodr

• 260 Answers
• Posted on Nov 20, 2008

SOURCE: temp gauge cold and then heat turns not so hot

make sure the antifreeze is full. if so, replace thermostat and refill

SOURCE: Charging problem.. Wont charge battery

The instructions for installing a new alternator usually read to fully charge the battery (12.3 - 12.8 volt range). Otherwise, the alternator will be damaged when it initializes. I have seen some extreme damage result from installing a new alternator with a low-charge battery. The torque required to turn an alternator when damaged in this scenario is unbelieveable!

SOURCE: car won't start when it's hot outside

My daughter's 1991 Honda Accord did the same thing. I discovered that the main relay had to be replaced. Apparently the solder used in the original main relay was poor and would actually "soften" in the heat and cause a disconnection. When the cabin temperature dropped, the solder would cool and reconnect. Anyway, replacing the main relay worked. My daughter's car has not had this problem since.