secondary air pump and solenoid location on 2007 Chevrolet Impala

Have code Po411,3.5 07 impala,incorrect air flow,where is pump located,and also the pump solenoid location,also fuse locations for the above mentioned items.

by in Orchard Park, NY on December 14, 2012
1 answer 3 comments
ANSWER by on December 14, 2012
you may just have a bad ck valve ck that 1st
COMMENT by on December 17, 2012
Thnx,can u pin -point the location of the CK valve,and is their more than one on this car.
COMMENT by on December 17, 2012
at the end of both exh pipe rails on top of the exh manifolds
COMMENT by on July 29, 2015
what is the ck valve please?