you dont its is a teriable job
To change the thermostat in a 2002 Nissan Xterra, remove the bolts that hold the cooling fan in place. Lift the fan out of the vehicle and loosen the clamp holding the lower radiator hose to the thermostat housing with a wrench. Remove the thermostat out of the mounting and replace.
Under the upper and lower intake manifolds at the back of the engine block.
In a 2002 Nissan Xterra, the knock sensor is located on the engine block, typically on the driver's side, beneath the intake manifold. It is mounted on the lower part of the engine, near the cylinder head. Accessing it may require removing some components, such as the intake manifold, for easier reach.
it run from the lower control arm forward
You change the control arms, upper and lower. The ball joints are manufactured into the control arms.
You have to change the whole lower control arm.
replace a control arm 99 tarus
All 3.3 supercharged FI MFI Xterra's require premium gasoline. --- running on regular or ethanol will probably trigger the Xterra's knock sensor in this engine. Since replacing the knock sensor (code 324 or related) in the Xterra supercharged engine is extremely expensive (figure $650-$750) depending on year and location... --- use premium. The "non aspirated" 3.3 cylinder Xterra can use regular gasoline IMO.... --- personally, I would try to avoid ethanol blends (10%) since the Xterra engines are somewhat sensitive to lower grade fuels.
Rear upper & lower control arm bushings need to be replaced.
Get a reading on the alignment machine. Caster reading
Not sure what part you are talking about because the lower control arm is connected to the frame. If you are talking about the long bar that's connected to the frame and the lower control arm, that is the torsion bar.
To change the rear struts on a 1987 Nissan Stanza, first, safely lift the vehicle and secure it on jack stands. Remove the rear wheel, then detach the strut from the lower control arm and the top mount located in the trunk. Replace the old strut with the new one, ensuring that all bolts are tightened to the manufacturer's specifications. Finally, reattach the wheel, lower the vehicle, and test the suspension for proper function.