To tighten a loose side mirror on a GMC Sierra 1500 SLE, first, locate the screws or bolts that secure the mirror assembly to the door. Use a suitable screwdriver or socket wrench to tighten these fasteners carefully without overtightening, which can damage the mirror or the housing. If the mirror is still loose, check for any additional clips or brackets that may need adjustment. Finally, ensure the mirror is properly aligned before securing everything back in place.
From what i know you have to remove the door panel and tighten the 3 bolts holding the mirror
it is just a loose connection between the two pieces of metal
gmc 1500 sierra was fuel injected in '92
The 2013 GMC Sierra-1500 is 17 ft. 1.6 in. (205.6 in.) long.
The 2014 GMC Sierra-1500 has a V6 engine.
The 2003 GMC Sierra-1500 has a V6 engine.
The 2008 GMC Sierra-1500 has 12 valves.
The 2011 GMC Sierra-1500 has 12 valves.
The 2007 GMC Sierra-1500 has 16 valves.
The 2006 GMC Sierra-1500 has 12 valves.
The 2004 GMC Sierra-1500 has 12 valves.
The 2001 GMC Sierra-1500 has a V6 engine.