Ah guys, got an overheating problem. At idle with no movement, the temp shoots up to just under red.

When I put the heater on high or start driving, the temps immediately return to normal. There is a full reservoir of coolant, which is not normal (usually half full).

Any ideas??

 

Are your fans turning on?

 

any coolant leaking? the overflow in your coolant reservior sounds like a bad thermostat. the fact that the temp drops while you drive is strange though. could be a leak causing a loss in pressure in your cooling system. Is your CEL on?

 

both fans work, no CEL, and yea, the coolant level in the overflow tank is rather high, about a 1/2 inch from the top.

 

whats the level like in the radiator?

 

How can I check that? Just by taking the cap off?

 

Yes, remove the cap. If you haven't done that before, you'll want to do that with the engine cool. People get burned all the time...

 

When i took the cap off, I can see coolant about a cm or so down, so i guess that;s filled also.

 

I would start out by replacing the thermostat

 

you dont think a flush would do anything?

 

your thermostat is gone, probably stuck shut. Either that or someone poured extra collant into your overflow.

 

alright, i guess ill do the thermostat today and check back with yall. any links to info on the thermo?

 

Part#4
Easy to get to.

 

how much does a new thermostat run

 

from what i have been told $10-20, i dont know for sure though.

 

26 bucks OEM

http://www.acuraautomotiveparts.org/...catdisplay.jsp

 

I have the same problem. Sitting at idle for more than 10 min causes temp to rise and I start to get detonation until I drive a little and temp cools down. Is that the thermostat or water pump?

 

Did you have work done previously? Could be an air pocket.
Hopefully you didn't drive the car overheated for a prolonged time. Then, you could possibly have a leaky headgasket. Does your coolant boil inside your resevoir during or when you turn off your car?

 

denonation? not sure
check your efans.. see if they come on at all

 

for the record, the problem is solved

I disconnected all of the coolant hoses. I flushed everything out (hoses, radiator, coolant inlet and outlet, and resevoir). I alos replaced the themorstat, which was nice and easy (two bolts right under the throttle body).

everything now works perfectly. also, for all those having over heating issues, MAKE SURE that there is a hose connected to the inside cap of the overflow resevoir.

 

Thanks for the update. Do you suspect any particular thing as the cause?

 

The thermostat

 

Yes, that's what I would suspect.

 

so the car really wasn't overheating? it was just the thermostat?

im having the same problem

 

if your thermostat is closed shut your car will overheat quickly. Get it replaced.

 

The thermostat has a pellet inside of it which melts at certain temp to let u know that the temp is rising. With the age of the car usually theses pellets get stuck and causes you too FREAK OUT because you think you car is about to blow up!!! i had the exact same problem and fix it by replacing my coolant system rad, upper/lower hoses, and thermo. Problem has yet to occur again for about 2 weeks everything was done almost a month ago.

 

This may sound stupid, but i had the same problem and thought it could be a number of things. I had the system pressure tested and everything was ok...no leaks. But I replaced the radiator cap which looked like it was leaking and topped the coolant off and I haven't had a problem since. I bought a NAPA cap for something like $5 and everythings great.

 

Yea the car really WAS overheating. If the thermostat isnt opening the car over heats.

 

oh ok just making sure cuz i had to air mine out before i could turn it on again, :ordersthermostat:

thx for the help guys