GMC Car Security Systems Technical Supporthttp://www.fixya.com/support/gmc/car_security_systemsSolved technical support problems provided by FixYa users.en-usCopyright (c) 2007 FixYa, LTD. All rights reserved.info@fixya.comWed, 06 Jan 2010 17:52:35 GMT80my 99 yukon will run fine some days and sometimeshttp://www.fixya.com/support/t2730646-99_yukon_will_run_fine_some_daysmy 99 yukon will run fine some days and sometimes I will park it go into a store or whatnot and it will start for two seconds then turn off . I usually have too put fuel in the intake about 3 time to get it to fire up then run fine. does anyone know...Wed, 06 Jan 2010 17:52:35 GMT