OBD2 Sensors >> GM 4.3L 90 Degree V6 “Vortec” Engine Sensor Locations

2001 Chevy Astro Van 4.3L
2001 Chevy Astro Van 4.3L
  1. Intake air temperature sensor (IAT)
  2. Mass airflow sensor (MAF)
  3. Camshaft position sensor (CMP)
  4. Oil pressure switch
  5. Knock sensor (KS)
  6. Crankshaft position sensor (CKP) underneath the vehicle near the crankshaft pulley
  7. Engine coolant temperature sensor (ECT)
  8. Throttle positions sensor (TP)
  9. Idle air control valve (IAC)
  10. Ignition coil
  11. Manifold absolute pressure sensor (MAP)
  12. Ignition module

Models Found On

  • Chevrolet C/K Trucks, GMC C/K Trucks
  • Chevrolet Express, GMC Savana Vans
  • Chevrolet Astro vans, GMC Safari Vans
  • Chevrolet Blazer, GMC Jimmy, 1996–2001 Oldsmobile Bravada
  • Chevrolet S-10 and GMC Sonoma
  • Chevrolet Silverado and GMC Sierra trucks
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Phillip Wallace
Phillip Wallace
2 years ago

I appreciate the list of all the sensors on a 4.3 vortec engine. But could have a diagram showing each ones location?? 🙏🙏 would be awesome to have and keep in my glove box!

BAT Team
2 years ago

There are red numbers on the engine images that match the list of sensors. Those red numbers show the locations of the matching numbered sensor in the list. Hope this helps.

Robert Mcewen
Robert Mcewen
1 year ago

Where can I get a sensor location list for 2000 sierra 4.3l ?