However, common transmission-related sensors and their general locations include:
* Transmission Range Sensor (PRNDL switch): This is usually located on the transmission itself, near where the shifter linkage connects. It tells the computer what gear the transmission is in.
* Vehicle Speed Sensor (VSS): This is *not* directly on the transmission in most cases, but often located on the rear differential or transfer case (if 4WD). It sends speed information to the transmission control module (TCM) and other systems. While not directly *on* the transmission, it's crucial for proper shifting.
* Manual Lever Position (MLP) Sensor (if applicable): Some transmissions use an MLP sensor to tell the computer the position of the manual valve linkage. This is usually found on the transmission itself.
* Output Speed Sensor (OSS): Some transmissions, especially those with electronic controls, will have an output speed sensor. This is on the transmission case, often near the output shaft.
To find the specific sensors for *your* 1993 Chevy truck transmission:
1. Identify your transmission type: Check your owner's manual or the identification tag on the transmission itself.
2. Consult a repair manual: A Haynes or Chilton manual specific to your year and model truck will have diagrams and descriptions showing the location of all the sensors and other components.
3. Use an online parts diagram: Many auto parts websites (like AutoZone, Advance Auto Parts, etc.) allow you to look up parts diagrams for your specific vehicle. This will show you the sensor locations visually.
Without knowing your specific transmission, it's impossible to give precise locations. Using the steps above will help you pinpoint the sensors you need to find.
