5.3L Tahoe hard to crank
#24
#27
Need to put a fuel gage on the rail and test it. Pull the vacuum line and it should jump up 8-10 psi.
If it does not, it might not be working correctly.
Have you cleaned the throttle body and idle air control valve?
If it does not, it might not be working correctly.
Have you cleaned the throttle body and idle air control valve?
#29
I did clean the TB but where is the IACV?
#30
If you have a DBW throttle body, you have no IACV. If you have a DBC, it's the small gold round thing on the upper right side. The holes in front of the blade are where the IACV draws from.






