Kentman44

Hello.. newbie here, I just replaced the knock sensors in my 2000 ES= 300 and now it has light steam coming out of the exhaust, I connected the throttle body coolant hoses to rule this out but I don’t know what to check next. Thanks in advance for any help !

LeX2K

You mean you checked to see if the various hoses were hooked up correctly?

Steam is a common effect of water pooling inside the exhaust due to condensation. If you had no issues with coolant loss or the like before you likely have nothing to worry about. Keep an eye on the coolant level after a few days of driving (will probably have to top off the reservoir after a bit of driving).

Kentman44

I bypassed the TB because I kept getting a little steam from the exhaust, no matter the air temp it keeps putting out a little steam and I had no steam before replacing the knock sensor’s, I’m wondering if it could be the intake gasket ?

LeX2K

Without knowing the parts you used, the procedure, your mechanical experience I would be taking a wild guess as to what is wrong if anything.