Why is my 2003 Honda Civic overheating?
While there are a variety of reasons your Honda Civic is overheating, the most common 3 are a coolant leak (water pump, radiator, hose etc.), the radiator fan, or a failed thermostat. Coolant leak (water pump, radiator, hose etc.)
Why is my Honda Civic not cooling properly?
In cases like that the coolant is no longer cooled mostly by airflow through the radiator. When you stop the temperature spikes and the thermostatically controlled electric cooling fan starts…and runs until temps. are brought below the lower limit of the sensor that controls on/off of that fan.
What’s the PSI of the air conditioner in a Honda Civic?
So, back to the hoses. This time, I revved the car up to about 1,500 to 2,000 RPM (since the Civic seems to idle at around 500 rpm). Sure enough, he said that the low pressure was being sucked down to about 20 PSI and the high-pressure was kicking way up again past 400 PSI.
Why is water boiling out of radiator in Honda Civic?
When it is sitting idle and the temperature is in normal operating range, the water is contsantly boiling out. We have bled the system as directed but no luck. When you step on the gas peddle the water will shoot out of the radiator with the cap off. The top hose is hot, the bottom is cool but does not feel like there is any pressure.
What to do if your Honda Civic overheats?
Since the car is overheating and you have essentially changed out everything in the cooling system that is what I would suspect.
Why does my Honda Civic overflow radiator?
The reason was not enough coolant in the system, filled up radiator and all OK. Then it happened again and there is coolant in the overflow tank, but pull the radiator cap and no fluid under cap. Fill radiator and all OK, but it kept happening. I replaced the OEM radiator cap with a new “Slant” brand for an ’03 Civic. No better, no worse.
Why is my civic coolant not coming out?
If it has the tube molded into the tank, then there could be a piece of crud in to bottom acting like a one way valve. You can only get rid of this by flushing out the tank upside down. The molded tube could also have a tiny crack near the top that would act the same as a bad tube hanging from the cap.
What kind of radiator does a 03 Honda Civic have?
Fill radiator and all OK, but it kept happening. I replaced the OEM radiator cap with a new “Slant” brand for an ’03 Civic. No better, no worse. Last week I had a significant overheating event while on a highway.
How is the expansion tank on a Honda Civic?
The expansion tank is shaped and fitted into a relatively tight space (pretty much standard Honda stuff). To remove the tank and hose looks like I’d have to pull the battery for sure and perhaps some other stuff just to get the tank out to inspect it and clean it properly. If I get that far I’ll replace the old hose with a new one.