can you should me were on the car are the oxgyen senors all 4 I don't know where on 2004 Cadillac DeVille

can I get a picture of where they are

by in Elizabethtown, KY on September 30, 2012
2 answers 6 comments
ANSWER by on September 30, 2012
why are you replacing them?? the chances of all 4 failing at the same time is like you getting hit by lightning in your living room. what is the issue?? Roy
COMMENT by on September 30, 2012
or could it be the mass air flow senor
COMMENT by on September 30, 2012
ok, same question, what is the issue??? Roy
COMMENT by on September 30, 2012
service engine soon light stays on
COMMENT by on September 30, 2012
what is the code?? Roy
COMMENT by on October 01, 2012
po171 and po174
COMMENT by on October 01, 2012
Those codes tell you the sensors are working . diagnose the CAUSE before replacing parts .
ANSWER by on September 30, 2012
if the service engine light is on have it scan tested for codes