What engine do I have, if I can't go by the VIN?

You should have a 4.8L V8 engine and a 4 speed Automatic Transmission. Good luck!

Well according to the vin it has 5.3. But I'm trying to find the throttle position sensor, and EVERY video that I've found, the throttle body and the sensor don't even look the same. Matter of fact on the videos, where it shows the sensor; it's not even there on my motor. I don't know

engines 4.8 5.3 6.0 all the TPS is located on the accelerator pedal assembly right up against the firewall. HTH

There is no direct connection to the throttle body it is computer driven.

Ok thanks guys! Can anybody tell me where my crank position sensor is located?

You will have to remove the starter, it's behind it.

Hey has anyone ever had a problem getting their truck to read codes?! I tried to read the codes but my computer says connection problems. The technician said I have computer issues! Does anybody know a way to reset or reprogram the computer. My Tahoe will crank, run for 2 seconds then die, I've already replaced the fuel pump, and now tech says I have computer problems, any help will be greatly appreciated!!!

Usually it is a blown fuse or a broken feed wire that causes the problem. So check ECM powers and grounds before condemning the ECM. If the ECM is bad and the connections are good it will tell you unless it is totally fired.