It is in the Tank, you must drop the tank, remove it from the vehicle
on the fuel pump
The 2002 Cadillac Escalade runs on regular unleaded.
The 2002 Cadillac Escalade-EXT runs on premium unleaded (required).
probably fuel pump.
behind the driverside running board, under the vehicle. (small silver can)
The 2011 Cadillac Escalade runs on flex-fuel (FFV).
The 2010 Cadillac Escalade runs on flex-fuel (FFV).
The 2014 Cadillac Escalade runs on flex-fuel (FFV).
The 2013 Cadillac Escalade runs on flex-fuel (FFV).
The 2003 Cadillac Escalade does not have an inertia switch. These most often need to be reset after a new fuel pump is installed.
The 2015 Cadillac Escalade runs on flex-fuel (unleaded/E85).
The 2009 Cadillac Escalade runs on flex-fuel (unleaded/E85).