GM 3500 Engine Sensors And Locations
Engine data sensor and control component locations on the GM 3500 V6 engine. Click sensor description below image for sensor details. This engine is the latest rendition of the popular 3.4L engine. It has been redesigned with much better air intake system, advanced engine timing, more accurate sensors, more total sensors and improved ignition and fuel injection systems.

1. MAF Sensor
2. Throttle Body
3. Throttle Actuator control (TAC)
4. Fuel Injector
5. PCV Valve
6. Evap Purge Solenoid