2004 Chevy Tahoe Z71January 1, 2013My car is hesitating to the point it almost stalls, what could that be indicating Keywords:hesitatingTahoeZ71 1 thought on “2004 Chevy Tahoe Z71” Freeautomechanic January 2, 2013 at 9:26 pm could be time for a tune up. could be A sticking IAC. could be a clogged catalytic converter. could be a failing temp sensor. If the check engine light is on, the first step would be to get the codes. Once you have the codes, post them here and I’ll be happy to guide you in the right direction. Comments are closed.