Ford Explorer Oil Pressure Sensor Replace/Remove

2ooo Ford Explorer 4.0 Sohc 2wd I Am Replacing The Oil Pressure Switch On The Engine Block But The Napa Replacement Part Has A Threaded...

Do I Have To Drop The Transmission To Change The Oil Pump On A 2000 Ford Explorer V-6? And Also, Where Would The Oil Pressure Sending Unit...

Have Just Change Oil Pressure Sender Switch(ford Part) But The Oil Gauge On The Dashboard Still Does Not Work What Is Now The Likely Cause

Started Up Car Noticed The Oil Pressure Gauge Was Flucuating And When I Pressed The Gas It Would Stick Half Way Where It Usually Is. Well 5...