Funny water tempreture
 

I have this problem just few days ago, the water temp will go down by a little bit when driving, and when idleing the water temp comes back to normal. I have new water pump and coolant from last year april, someone please enlighten me. Could be a coolant leak?
Is coolant supposed to evaporate a little or I am having a leaking gasket? I don't see any where leaking either my rad or hoses.

:thumbup: thanks

The wife's old CRX used to do the same thing. It was the thermostat.

i think its because your driving and the air is cooling of the engine a little and when your at idle your engine warm back up.,

^^ the thermostat regulates that aspect of it... like dumassi said, it's prolly the thermo

Could it be a vaccum leak? Thanks

unlikely... but if you got a vac leak, you should fix it.

It's actually that catch can I made is leaking, one screw is loose. Thanks.