mrschwarting

Hey guys I've got a 2000 crv that's overheating, here's the story:

I got the car about a year ago and never had any overheating problems but I did notice that I was not getting torque converter lock on the highway. After some research I found out that this can be caused by the ecu not getting the signal from the temp sensor that the engine is at operating temp. Coupled with the fact that the car took a while to warm up (even though I live in the Philippines and it rarely dips below 30 degrees C here) I decided to replace the thermostat. Once I opened up the t-stat housing, I expected to see a t-stat that was stuck open but to my surprise it was missing altogether. So I put in a brand new one from the dealer and now torque converter locks perfectly but now I have a fluctuating idle and overheating. I've tried bleeding the cooling system with no success. I still have a fluctuating idle and overheating. First I thought that I had a leak at the t-stat housing so I put some RTV and refilled the coolant and bled it again but still no luck! This is driving me crazy since I need the car for school. Temps stay normal during the bleeding procedure and the fans kick on no problem, I've also cleaned out the heater core. To be clear I never let the temp needle reach the H, it will always climb slowly after 15 mins of driving, I turn the heater to full and the needle stops climbing and would slowly go back to normal.
I'm really tempted to just take the thermostat out again so I could at least drive the car for longer than 20 mins. Any help would be much appreciated

gabrielhermank

I had a similar problem. I ended up buying another JDM engine.

JPBJR3

The idle up and down is probably the IAC Valve: idle air control valve. I did not replace mine, I just cleaned it out with carburetor cleaner. The overheat could easily be the radiator fan needs replacing or has a bad wire or switch.

Phoenix1

iTrader: (1)

I wonder if the previous owner removed the t-stat due to an overheating problem - perhaps the radiator is clogged? Us a infrared thermometer to check temperature across the radiator when the thermostat opens. If you don't have one, remove the fans and touch the radiator (using commons sense, of course) across it's span and see if you can detect even temperature.

Elad62

I see there are 3 different thermostats to choose from. 170,180 & 195 F.
I live up in northern Mn so was thinking of the 195^ one since its so cold up here but hear that s may be too high. Is that a problem on the 01 crv engines?.