Non Firing gm
I have an 06 GMC Sierra 4wd that died key
got no response. I replaced starter key
tumbler and ignition switch . Now I have
normal key function I e cranks but won't
start I sprayed starting fluid in intake but
no change . Firing is only option either from
pass lock or something else I tested fuses
and relays but all were good. Any
suggestions? Over 250,000 similar
questions on gm with same general
problem. Help