Where is the oil filter located on a 2003 Chevy pick up big block V8?
Drivers side, all the way to the back, down by the oil pan.
If the truck has a 2.5l 6cyl the oil filter is located on the drivers side near the steering arm and below the exhaust. The filter is horizontal and can only be removed from down below. The 2.0l four from the poor picture in the G.M shop manual probaly has the oil filter again on the drivers side but lower down on the engine block.
The cabin air filter on a 2003 Chevy 2500HD pickup is located on the passenger side under the glove compartment. To replace it, first remove the two screws on the kick plate under the glove compartment. Remove the kick plate. Then, unclip and swing the filter housing cover to the right. Remove the filter by pulling straight down. Insert the new filter, and reassemble in the reverse manner.