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• The EBPS on the 7.3L Power Stroke is located near the front of the engine, just in front of the high pressure oil pump. You'll need to remove the plastic engine cover in order to gain access.
• Remove the electrical connector by relieving the locking clip and pulling upwards, being careful not to damage the clip or any of the exposed wires.
• Use a 1" deep socket to remove the sensor itself while holding the nut just beneath the bracket with a 9/16" open ended wrench (not to be confused with the 5/8" nut on the tube). Failure to support the bracket by holding the 9/16" nut may result in bending or damaging of the bracket itself.
• Use a 5/8" crows foot wrench (a flare nut crows foot is best) to loosen the EBPS tube while holding the nut just above it with a 9/16" open ended wrench (a shorty seems to fit well in the space).
• The opposite end of the EBPS tube connects to the front of the passenger side exhaust manifold - remove it with a 5/8" flare nut wrench and then work the tube out so that it is completely removed.
• Installation is reverse - install the exhaust back pressure sensor tube at the sensor bracket first, then to the exhaust manifold, and then install the new (or cleaned) sensor and reinstall the electrical connector.
• You may use a solvent to thoroughly clean the EBPS tube, but do not use chemicals on the sensor itself. A shot of compressed air is also helpful in removing buildup. For the sensor, a small pipe cleaner or piece of plastic weed eater wire can be used, just be careful not to puncture the diaphragm of the sensor or it will need to be replaced. Don't forget to clean out the small orifice that connects the tube to the sensor (fixed to the bracket).