l own a 2001 Lexus Rx 300 and was changing out the Sparkplugs on it, but got stuck.. l got three of them replaced (the ones in the front), but l have absolutely no idea how to get to the rear ones... HELP

The other three spark plugs r on the back of the engine behind the intake manifold. It is a tight space & u will want to do it when the engine is cooled off.

First u need to remove the PCV valve & hose connected to the intake manifold(PCV valve is is located on the passenger side of the engine bay).

If the car has cruise control, probably does, to get the extra room it may be worth the effort to disconnect the cruise control cable from the throttle body & move it out of the way.

Now u should have a clear path to get the plugs in the back. You will need a 10mm socket to get the rear coils out, just like the front. You can just get them loose & move them out of the way.

l find it is easiest to get the plugs out using a small 3/8 drive ratchet, 2- 2'' extensions & a swivel spark plug socket. Attach the spark plug socket to one extension & drop it in the spark plug tube, then attach the other extension & break loose with the ratchet & twist out by hand.

Hope this helps.