4 in the exhaust before the cats and after the cats
2
Refer to the user and service manual to see where the Oxygen sensors are on the 2002 GMC Yukon 4.8.
3
were is the rear door relay switch located on a 2003 yukon
there are 4 O2 sensors on a 2007 Yukon. 2 on each side. upper bank is on the down tube of the exhaust prior to the catalytic converter, lower bank is after the catalytic converters
The 2009 GMC Yukon has 16 valves.
The 2008 GMC Yukon has 16 valves.
The 2007 GMC Yukon has 16 valves.
The 2003 GMC Yukon has 16 valves.
The 2004 GMC Yukon has 16 valves.
The 2015 GMC Yukon has 16 valves.
The 2001 GMC Yukon has 16 valves.