I t requires a special tool. Should be able to get it from snapon or maybe the parts store. Called a fuel line disconnect set.
where is the fuel pump relay on a 1999 Chevrolet Tahoe
The 2013 Chevrolet Tahoe runs on flex-fuel (FFV).
The 2014 Chevrolet Tahoe runs on flex-fuel (FFV).
The 2012 Chevrolet Tahoe runs on flex-fuel (FFV).
The 2015 Chevrolet Tahoe runs on flex-fuel (FFV).
The 2011 Chevrolet Tahoe runs on flex-fuel (unleaded/E85).
The 2010 Chevrolet Tahoe runs on flex-fuel (unleaded/E85).
The 2010 Chevrolet Tahoe-Hybrid runs on flex-fuel (unleaded/E85).
The 2006 Chevrolet Tahoe runs on regular unleaded.
The 2004 Chevrolet Tahoe runs on regular unleaded.
The 2001 Chevrolet Tahoe runs on regular unleaded.
The 2008 Chevrolet Tahoe runs on regular unleaded.