02 accord overheating when idle (tried everything)
What do you mean by the radiator reservoir is full and not draining?
You might want to spray the fins of the radiator and the fins of the a/c condenser with with water to clean any dirt, bugs, etc... that may prevent the radiator from cooling.
How were the fans wired up to keep them turned on at all times? Also, were they not turning on before?
You might want to spray the fins of the radiator and the fins of the a/c condenser with with water to clean any dirt, bugs, etc... that may prevent the radiator from cooling.
How were the fans wired up to keep them turned on at all times? Also, were they not turning on before?
When the water pump and timing belt were replaced, check your invoice to see if the thermostat was replaced as well. Is the coolant circulating inside the radiator top tank when engine is warmed up ?? If the thermostat isn't opening, the water pump can't move the coolant through the engine block.
When the water pump and timing belt were replaced, check your invoice to see if the thermostat was replaced as well. Is the coolant circulating inside the radiator top tank when engine is warmed up ?? If the thermostat isn't opening, the water pump can't move the coolant through the engine block.
If you are sitting at the light and the temp gauge is going up, If you just rev the engine will the temp gauge go down some? If it does your coolant is low. We had a bad cap and the coolant would go into the overflow bottle but wouldn't go back into the radiator when the car cooled down. I've seen bad new parts, maybe you got a bad rad cap.
Your description sounds like not enough air is getting pushed through the radiator to cool the engine. Or a partially closed thermostat.
You can drain the coolant and remove the thermostat. Refill the coolant and see if the overheating goes away. It may take longer for your engine to warm to normal operating temperature. If that solves the problem, I would replace the thermostat with one from the dealership. They cost around $20.
You can drain the coolant and remove the thermostat. Refill the coolant and see if the overheating goes away. It may take longer for your engine to warm to normal operating temperature. If that solves the problem, I would replace the thermostat with one from the dealership. They cost around $20.
I think your thermostat is stuck or not opening fully. This is a starting point and a cheap fix... Buy a factory Honda part and go from there. Again, does the coolant circulate in the top tank of the radiator when at temp ?? If not, then definitely change the thermostat first. I would also suggest you go to a radiator shop and have them inspect the entire cooling system for any damage from hitting debris as you described in post #25...These are very small radiators and they are quite fragile.
Last edited by bigpat; Aug 7, 2011 at 09:45 AM.
I don't know. I'll take it in to a shop tomorrow or something. They put a new rad cap on but it says 14 lbs and made in mexico. Not very pleasing lol. And I paid for a gallon of antifreeze so I can't be low on that. Only thing I can think of would be a stuck thermostat or bad rad cap...?
And when you say is coolant circulating in the top tank, what exactly do you mean? You mean the plastic runoff tank/resevoir???
And when you say is coolant circulating in the top tank, what exactly do you mean? You mean the plastic runoff tank/resevoir???
I don't know. I'll take it in to a shop tomorrow or something. They put a new rad cap on but it says 14 lbs and made in mexico. Not very pleasing lol. And I paid for a gallon of antifreeze so I can't be low on that. Only thing I can think of would be a stuck thermostat or bad rad cap...?
And when you say is coolant circulating in the top tank, what exactly do you mean? You mean the plastic runoff tank/resevoir???
And when you say is coolant circulating in the top tank, what exactly do you mean? You mean the plastic runoff tank/resevoir???
Last edited by bigpat; Aug 7, 2011 at 12:25 PM.


