Hi,

Was driving around town and noticed smoke coming from under the hood once I parked my discovery 2.

I assumed initially it was the radiator but when I investigated, I saw small amount of liquid which was causing the smoke was coming from the driver side HO2S.

Haven't taken it to the shop or ran any tests as its just happened an hour ago.

 

Check for leaks around your throttle body "heater" gasket. Pretty common failure.