from 1996 and older it will be a TBI. (throttle body injection) motor. IF newer then 1996 it will be a Vorteck engine NEUTZ
1996
Your 2000 GMC Sierra Vortec might be hard to start because the battery or the starter are worn or dead. The GMC Sierra might also be hard to start because of a clogged fuel filter.
It sure can.
this is common with the vortec engines. pull the cap and rotor and replace them its common for moisture to build up in the vortec distributors. causing no spark or poor spark condition A quick shot of wd40 inside the cap will help alot
Start in the middle and go in a circle
About the same time as the model T was introduced until now, where I live we have four single truck tow companies.
code 12 is telling you that you are in diognostic mode and the codes will start coming
1986
Late 90's
A 2000 Silverado 5.3 Vortec that is hard to start and misses on one side of the engine might have a problem with the coil pack or the spark plugs. It could also mean that the block is cracked if the engine is prone to overheating.
There is no choke on an injection system. The cold start enrichment system performs this function.