common issues with vortex v6

Lower intake gasket.

General Motors Vortec line of V-6 engines commonly suffer from problems with excessive oil consumption and engine knocking. Knocking problems are particularly prevalent in Vortec engines used in trucks and SUVs built during the late 1990s and early 2000s. Some Vortec V-6 engines also develop problems with their camshafts, though this seems to be more common among Vortec engines used in industrial applications rather than in passenger vehicles. Severe knocking issues are most common to the L35 and LF6 Vortec V-6 engines built between 1996 and 2002, while oil consumption issues are more common in the LU3 engine built from 2004 to 2009. Owners of vehicles with Vortec engines affected by knocking issues report that the problem seems to occur after the engine has had some time to warm up or during acceleration. The cause of the knocking issue has not been definitively determined, but some owners report that replacing the pistons in the engine may address the issue. Owners with newer Vortec engines that consume excessive oil report that these engines may consume up to two quarts or more of oil between service intervals. The Active Fuel Management selective cylinder shutdown system is suspected to be one of the causes of this issue, and some owners have reported that disabling this feature can reduce oil consumption substantially.

Other than some headers there are not many go fast parts.

my truck has 4.3 6cyl but drive to town shut it off and won't start -no spark already replaced coil,cap&rotor,ignition module,crank sencer. there's juice into cool but nothing out put plug on plug wire there's nothing any ideas?

Cam sensor, Computer

When starting the engine it have dragging like the battery is not fully charge what else can call it to drag

Bad battery terminals/cables, loose/bad or corroded battery connections, dead battery cell, starter.

too much ignition timing advance can also cause slow cranking.

Anybody know what this is called

Oil pressure sending unit.

Isnt that a pizza oven ?

I have my 2001 checy s10 6-cylinder engine ... it has problems when it accelerates to the bottom ... it runs and drives well but if the accelerator to the bottom gives problems ... I already changed many parts such as spark plugs, wires, coil, EGR valve and etx

Check your fuel pressure. I had the same issue. Replaced the fuel pump and it lives

I have a 2000 blazer vortex v6 it stalls when braking we changed cap and rotor after that it wouldnt start let it sit then it started again any suggestions?

Hi Guru. It seems like MAP issue. Or air leak in line booster or in the booster itself