I have a Honda Accord ex 2001 3.0 6cyl,I feel like I'm missing parts and the engine shifted more to the passenger side my cousin put in the back motor mount and the passenger one too.

SOURCE: where is the o2 sensor located on a 1991 honda accord ex 2.2 engine

Further clarification on the O2 sensor location: It is in the exhaust pipe, under the center of the car, on top of the pipe, just aft of the oil filter.

SOURCE: how to remove a shift knob on a 91 honda acoord ex

theres screws on the back of the shift knob where you hand goes

SOURCE: 1991 Honda Accord Ex

change your fast idle thermo valve

SOURCE: Determining if head gasket is blown on a 1994 honda accord Ex w VTec

White smoke out of the exhaust is one indication that the head gasket is blown. Another is to start the car and check the oil on the dipstick. If it's frothy or looks like a milkshake, this is another indication of a blown head gasket. The milky appearance indicates that coolant is in your engine, caused by a bad head gasket. If none of these symptoms occur, then the problem lies elsewhere. Hope this answers your question and feel free to post back with any other concerns or questions. Thank you.
Greg

SOURCE: 2006 honda accord ex. No heat on driver side and

The heater core can partially plug (internally) causing heat from only one side of the dash vents. You can try to flush just the heater core itself, but most of the time the heater core asy requires replacement.