The first spark plug up front on the drivers side head is #1
That would be the second plug on the passenger side of the engine from the front.
1-6-5-4-3-2 Clockwise rotation.
Bank 1 is the side of the V8 or V6 engine where cylinder #1 is located. On Chevy engines that is on the drivers side.
The 06 silverado 4.3 does not have a PCV valve.
195 HP
.060
1500LBS
6
The standard 4.3 V6 in 2006 is rated at 195hp.
Ther is no PCV valve on a 06 silverado with a 4.3L engine
Change motor mounts and install...
Catalytic Converter is clogged.