These are the ones I know about, any GM Flex-Fuel vehicle should have one I think. I got mine off a 2001 2.2L Sonoma
- 2000 - 2001
- 2.2L Chevrolet S-10 pickup 2WD
- 2.2L Sonoma GMC pickup 2WD
- 2002
- 5.3L V-8 engine Chevy Silverado� and GMC Sierra� half-ton pickups 2WD & 4WD
- 5.3L Vortec-engine Suburban, Tahoe, Yukon and Yukon XLs
- 2.2L Chevrolet S-10 pickup 2WD
- 2.2L Sonoma GMC pickup 2WD
- 2003 - 2006
- 5.3L V-8 engine Chevy Silverado� and GMC Sierra� half-ton pickups 2WD & 4WD
- 5.3L Vortec-engine Suburban, Tahoe, Yukon and Yukon XLs
- 2005 - 2006
- 5.3L Vortec-engine Avalanche
- 5.3L Vortec-engine Police Package Tahoe�
- 2006
- 3.5L Chevy Impala (LS, 1LT & 2LT)�
- 3.5L Chevy Monte Carlo (LS and LT models only)�