Where is the location of egr pressure sensor on a 1997 ford explorer 5.0 L engine?

The 1997 Ford Explorer 5.0L engine doesn't have a dedicated EGR pressure sensor in the same way some later models do. The EGR system's operation is monitored differently. Instead of a pressure sensor, it uses a combination of the EGR valve position sensor (which is part of the EGR valve itself) and the manifold absolute pressure (MAP) sensor to indirectly determine EGR flow.

Therefore, there's no single "EGR pressure sensor" to locate. You'll find:

* EGR Valve: This is typically located on the intake manifold, near the back of the engine. It has the position sensor integrated into it.

* MAP Sensor: This is usually found on the intake manifold as well, often near the throttle body. It measures the pressure in the intake manifold, which helps the computer determine if the EGR is functioning correctly.

To troubleshoot EGR issues on this engine, you'll need to check the EGR valve itself for proper operation and vacuum leaks, as well as the MAP sensor's readings. A scan tool capable of reading OBDII codes will also be beneficial in identifying problems.